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Hi, i need help to rooting my Ascend D1.
Do anyone help???
Tks.
powerdgo said:
Hi, i need help to rooting my Ascend D1.
Do anyone help???
Tks.
Click to expand...
Click to collapse
I have root and recovery on my ascend Ascend D1 (u9500) (NOT Quad!)
First i followed steps 1-7 here:
[not allowed to post link since i have to few posts]
ht tp : / / johnnyparanoia.blogspot . se/2012/06/how-to-root-huawei-ascend-p1-u9200.html
In step one i chose ("just the tools...")
To get ClockWorkMod Recovery i had to experiment a bit. Note that i believe that using CWM might hinder the possibilities to install official updates from Huawei.
How i did i wrote in a comment to the blog post previously mentioned.
I managed to install recovery (ClockWorkMod Recovery v5.8.4.5) after a lot of messing around.
First i installed Android Control (to c:\AndroidControl)
I downloaded cwm_touch_recovery_viva_beta.img and put it in c:\AndroidControl
Then i went into the phones download mode (or whatever it is called) by:
a: Turning off phone and wait a while
b: Hold Volume down and connect usb cable from computer
Now a new device shows up called Blaze. No driver could be identified. (in W7x64)
I Selected it in Device Manager and forced it to use "Android adapter ADB Interface" (I selected: Update driver software / Browse my computer... / Let me pick from a list... / Mobile phone (I think it was) / Android adapter ADB Interface).
I had the driver availible there. This might be from installing HiSuite earlier.
Now i started the command prompt (cmd) and went to c:\AndroidControl.
Then i ran the commands:
"fastboot devices" (to confirm that the device was identified. If no device is found an error will be thrown.)
"fastboot flash recovery cwm_touch_recovery_viva_beta.img"
"fastboot reboot"
Baseband version is: "IMC1202_20120620_PENTA"
Kernel version is: 3.0.8-00028-gf1d0793 [email protected] #1
Build number is: U9500-1V100R001C00B215
Kurbits!
Actually I did tried hard to follow your steps but it dostn't work. Luckily, after a long day trying i'm now successfully got my D1 a CWM (ClockWorkMod Recovery v5.8.4.5).
However, still i can't ROOT it, i've been tried the UnlockRoot but no chance. Can you tell me how you have it ROOTED?
I plan to flash an international version but the process always aborted. Is there any trick to do it? The CWM always look for UPDATE.ZIP while the firmware that I've downloaded has only UPDATE.APP
Do you have any suggestions on how this can be accomplished?
Thanks!
Kurbits said:
I have root and recovery on my ascend Ascend D1 (u9500) (NOT Quad!)
First i followed steps 1-7 here:
[not allowed to post link since i have to few posts]
ht tp : / / johnnyparanoia.blogspot . se/2012/06/how-to-root-huawei-ascend-p1-u9200.html
In step one i chose ("just the tools...")
To get ClockWorkMod Recovery i had to experiment a bit. Note that i believe that using CWM might hinder the possibilities to install official updates from Huawei.
How i did i wrote in a comment to the blog post previously mentioned.
I managed to install recovery (ClockWorkMod Recovery v5.8.4.5) after a lot of messing around.
First i installed Android Control (to c:\AndroidControl)
I downloaded cwm_touch_recovery_viva_beta.img and put it in c:\AndroidControl
Then i went into the phones download mode (or whatever it is called) by:
a: Turning off phone and wait a while
b: Hold Volume down and connect usb cable from computer
Now a new device shows up called Blaze. No driver could be identified. (in W7x64)
I Selected it in Device Manager and forced it to use "Android adapter ADB Interface" (I selected: Update driver software / Browse my computer... / Let me pick from a list... / Mobile phone (I think it was) / Android adapter ADB Interface).
I had the driver availible there. This might be from installing HiSuite earlier.
Now i started the command prompt (cmd) and went to c:\AndroidControl.
Then i ran the commands:
"fastboot devices" (to confirm that the device was identified. If no device is found an error will be thrown.)
"fastboot flash recovery cwm_touch_recovery_viva_beta.img"
"fastboot reboot"
Baseband version is: "IMC1202_20120620_PENTA"
Kernel version is: 3.0.8-00028-gf1d0793 [email protected] #1
Build number is: U9500-1V100R001C00B215
Click to expand...
Click to collapse
try adb restore
khmerppc said:
Kurbits!
Actually I did tried hard to follow your steps but it dostn't work...
However, still i can't ROOT it, i've been tried the UnlockRoot but no chance. Can you tell me how you have it ROOTED?...
Click to expand...
Click to collapse
Hi. So you have tried steps 1-7 from ht tp : / / johnnyparanoia.blogspot . se/2012/06/how-to-root-huawei-ascend-p1-u9200.html [not allowed to post link since i have to few posts]
Where does it go wrong? I´ll qoute the steps for reference only.
The url referred in step one is: h ttp://w ww.mediafire.com/?7pdfh11ue8ykyk6
Step 1 - Download ...just the tools here - b113 b115 root u9200[Nixing] Tools Only and extract to your desktop.
Step 2 - Enable USB debugging on your phone - Settings -> Developer options -> USB debugging and plug it into your PC
Step 3 - Run hwadb.exe and let it finish.
Step 4 - Run ubl.exe and wait for it to finish.
Step 5 - Disconnect your phone from your PC and Reboot.
Step 6 - Check to see if Superuser has been installed on your phone.
Step 7 - If you find Superuser in your menu, Congratulations your phone is rooted
Click to expand...
Click to collapse
I got it to work without problem. If you can specify where it goes wrong could you post a screenshot of what happens or be more specific about which step that does not seem to work.
Kurbits!
Thanks for the reply. I've successfully rooted it now but not with the steps in the URL u provided. What I did was tried to fix the permission and root it via CWM.
Anyway, what I really wanna do now is to flash it with international firmware offered in Huawei download page for D1. But the thing is that the firmware is come with UPDATE.APP instead of UPDATE.ZIP and I did try to rename it but no chance, always aborted.
Do you have any idea how to get it done?
Cheers
J
Kurbits said:
Hi. So you have tried steps 1-7 from ht tp : / / johnnyparanoia.blogspot . se/2012/06/how-to-root-huawei-ascend-p1-u9200.html [not allowed to post link since i have to few posts]
Where does it go wrong? I´ll qoute the steps for reference only.
The url referred in step one is: h ttp://w ww.mediafire.com/?7pdfh11ue8ykyk6
I got it to work without problem. If you can specify where it goes wrong could you post a screenshot of what happens or be more specific about which step that does not seem to work.
Click to expand...
Click to collapse
the automated process from this thread did not work on my D1, but this manual process did:
download mempodroid and su from
http://forum.xda-developers.com/showpost.php?p=21756513&postcount=1
follow all instructions in that post up to the mempodroid command (1st 4)
execute mempodroid with these args instead (copied from the ubl.exe tool posted by the OP)
Code:
./mempodroid 0xd734 0xad9f sh
execute the rest of the commands from the mempodroid root post (up to the adb reboot)
Hey did you try the Bin4ry method? its so simple and took me seconds to root!
I am on the quad but im sure it should work through this restore method!
http://forum.xda-developers.com/showthread.php?t=1886460
Reflashing U9500 to stock / Upgrading HUAWEI firmware
I have been searching these and other forums for a while trying to determine how to (a) update my CWM & rooted U9500 to the newest huawei build (221), and (b) return the phone entirely to stock (remove root & CWM). The main issue with either is that with CWM installed I couldn't figure out how to install Huawei's firmware UPDATE.APP files retrieved from their website. Here's how I got that to work:
I used the current firmware from Huawei: U9500-1,Android 4.0,V100R001C00B221,General Version (I can't post links)
Extract the HUAWEI zip and copy the dload folder (containing UPDATE.APP) to a micro sd card
Download split_updata.pl & crc binary from modaco.com forum (google "Repacking UPDATA.APP")
Run the split_updata.pl script with the path to UPDATE.APP as a command line argument. It should extract a bunch of unknown files to the output directory.
unknown_file.7 (should be 5697536 bytes) is the official recovery partition. This is what you will replace CWM with. You can rename it to recovery.img, or just use the created filename when flashing.
Boot phone in download mode:
* Power off
* Hold POWER & VOLUME DOWN buttons
* Release both when Huawei logo appears
* Phone should not continue booting or enter CWM
Run fastboot devices and make sure something is listed (mine only printed a bunch of question marks, but it worked fine)
Run fastboot flash recovery recovery.img
Run fastboot reboot
After the phone boots up normally, go to settings -> storage -> software upgrade -> sd card upgade and click confirm.
This will reboot into the official recovery image and start the upgrade process. This will also remove CWM, root/superuser, and any other changes to the OS you have made.
If you were just looking to upgrade, you can reflash CWM and/or root the phone again. If you were looking to return to stock, you can then reboot into Android and run the factory reset option.
d_ckhole said:
I have been searching these and other forums for a while trying to determine how to (a) update my CWM & rooted U9500 to the newest huawei build (221), and (b) return the phone entirely to stock (remove root & CWM). The main issue with either is that with CWM installed I couldn't figure out how to install Huawei's firmware UPDATE.APP files retrieved from their website. Here's how I got that to work:
I used the current firmware from Huawei: U9500-1,Android 4.0,V100R001C00B221,General Version (I can't post links)
Extract the HUAWEI zip and copy the dload folder (containing UPDATE.APP) to a micro sd card
Download split_updata.pl & crc binary from modaco.com forum (google "Repacking UPDATA.APP")
Run the split_updata.pl script with the path to UPDATE.APP as a command line argument. It should extract a bunch of unknown files to the output directory.
unknown_file.7 (should be 5697536 bytes) is the official recovery partition. This is what you will replace CWM with. You can rename it to recovery.img, or just use the created filename when flashing.
Boot phone in download mode:
* Power off
* Hold POWER & VOLUME DOWN buttons
* Release both when Huawei logo appears
* Phone should not continue booting or enter CWM
Run fastboot devices and make sure something is listed (mine only printed a bunch of question marks, but it worked fine)
Run fastboot flash recovery recovery.img
Run fastboot reboot
After the phone boots up normally, go to settings -> storage -> software upgrade -> sd card upgade and click confirm.
This will reboot into the official recovery image and start the upgrade process. This will also remove CWM, root/superuser, and any other changes to the OS you have made.
If you were just looking to upgrade, you can reflash CWM and/or root the phone again. If you were looking to return to stock, you can then reboot into Android and run the factory reset option.
Click to expand...
Click to collapse
You need to correctly install the drivers for both adb and fastboot.
It would be a nightmare on a 64bit Windows system, but it's quite easy on Linux/MacOS systems.
Dell Venue 7 BOOT PROBLEM
Hello,
I replaced frameworks-res.apk, and others, for change design, but now i can't boot my tab ! , it just booting booting booting booting and booting, factory reset not helped?, can you help me please?
It's Dell Venue 7 3730
ManXXXX said:
Hello,
I replaced frameworks-res.apk, and others, for change design, but now i can't boot my tab ! , it just booting booting booting booting and booting, factory reset not helped?, can you help me please?
It's Dell Venue 7 3730
Click to expand...
Click to collapse
You need to flash again the stock rom, the factory reset won't work.
You can found it here http://forum.xda-developers.com/showpost.php?p=51090040&postcount=2 and flashing through fastboot
I don't know what frameworks-res.apk you used, but maybe you forgot set the right permissions, or maybe you took the files for other device.
DL VN 7
Is there some tutorial for flash with fastboot??, i never did it, and i don't want destroy some other..
Go here to Dell's opensource site.. http://opensource.dell.com/releases/...loper-edition/
Link
No working link
ManXXXX said:
No working link
Click to expand...
Click to collapse
first
sorry for the late reply.
In the dell's opensource page there aren't files for the 3730 (i don't know why)
but, may be i'm wrong, there aren't tutorials for flashing in fastboot, i only found posts in xda's dell venue general forum.
i'll write here a guide if you still without founding a tutorial and for any others if found this post
you need:
intel usb drivershttps://software.intel.com/en-us/android/articles/intel-usb-driver-for-android-devices , read the instruccions if you are in windows 8 (i'm on win7 so i cannot tell you if is the same method or not)
The tools for fastboot (there are in a folder called "google") is a little confused so better download @social-design-concepts miKIT_BATCH HERE (before continue let's say thanks to @social-design-concepts for his useful tool that also works for root ),extract wherever you want in your computer.
the files to flash HEREdownload the package for your device and once donwloaded extract where you want in your computer
NOW FOR FLASH
1.-
Install the intel android usb drivers, if you did this before, skip
2.-
Open the myKIT_BATCH folder and run the "runme.bat" file, then type ACCEPT, after that type 2 and press "enter" (the option 1 is for update the driver, in myKIT_BATCH's post 1 is explained) the font should be red.
3.-
boot into fastboot (press button "power" and button "volume down" at the same time) your tablet's screen will display a blue android with gears inside and below it the "droidboot" text and your device info in your device's top|left screen corner , if yes connect your tablet to pc to recognize it (if is the first time).
4.- Open a command window
after the pc recognizes your tablet unplug and plug again the usb cable, should be faster the recognicion this time.
Then in myKIT_BATCH window press "enter" to refresh, the font will become green and will display your device's info, if is going fine in the window type 4 and press "enter", will appear another window.
IF everything still going fine in the new command window type:
Code:
fastboot devices
will display your device's info
5.- let's start with fastboot
BUT first ENSURE THAT THE BATTERY HAVE A CONSIDERABLE CHARGED LEVEL
Unfortunately i don't know what happens if the tablet power off when flashing and if fastboot will work fine after so check your battery charge first
i need to tell you that the 1-4 steps are the most difficult steps (you should have at this time the rom downloaded and extracted only extract the downloaded package (the .7z file)
after this explained so let's start.
5.1.- WIPING
fastboot have some wipe commands so i will explain the 2 that i used:
Code:
fastboot erase cache
This code explains itself, you can try this code to verify that your device is connected
Code:
fastboot erase data
easy to use but powerful, this will erase app's data and also your internal storage (the 11GB that the tablet have to store files), unfortunately i used this without know and i lost 8GB of files
5.2.- NOW TO FLASH
works almost equal with the wipping commands so it's easy to explain.
let's start with system
for a easy explain you ned to open a window where the rom's files are stored in your pc and in the command shell type "fastboot flash system" and after that drag the system file (system.img.tar.gz) to the command window after dragging the file will appear in the command window the full path of the file
I.E i have a dell venue 8 3830 and i want to flash the jellybean 4.2.2 stock rom so i downloaded the Venue_8_WiFi_JB4.2.2v1.42_FLASHPKG and extract this in F:\VENUE 8 3830\stock rom folder so after type the command and drag and drop the system file in my command window will display this:
Code:
fastboot flash system F:\VENUE 3830\stock rom\VENUE_8_WIFI_JB4.2.2v1.42.system.img.gz
after this the command press "enter" and you don't need to do nothing (maybe your window will turn off and maybe you try to turn on but will keep off, don't worry only let fininsh) the fastboot program will start to prepare the file for upload to the tablet and after that to flash.
this will finish in 1-2 minutes.
NOW THE BOOT.IMG
is the same way than system but faster.
after finishing flashing system (when the window diplays the elapsed time) type: "fastboot flash boot" and drag and drop the boot.img file in the command window
I.E. in my device will be like this:
Code:
fastboot flash boot F:\VENUE 3830\stock rom\VENUE_8_WIFI_JB4.2.2v1.42.boot.img
press "enter" and will do the same like system prepare,upload and flash the file.
there are in the download package more file but only with BOOT and SYSTEM flashed your tab should boot
but if you want to flash the other images you need to type
for recovery:
Code:
fastboot flash recovery F:\VENUE 3830\stock rom\VENUE_8_WIFI_JB4.2.2v1.42.recovery.img
and for fastboot:
Code:
fastboot flash fastboot F:\VENUE 3830\stock rom\VENUE_8_WIFI_JB4.2.2v1.42.fastboot.img
for my example, for you will be change a little
thanks to all who read and understand this guide, bad english
you are free to comment this if i mistake
ADB Driver
Isrks said:
first
sorry for the late reply.
In the dell's opensource page there aren't files for the 3730 (i don't know why)
but, may be i'm wrong, there aren't tutorials for flashing in fastboot, i only found posts in xda's dell venue general forum.
i'll write here a guide if you still without founding a tutorial and for any others if found this post
you need:
intel usb drivershttps://software.intel.com/en-us/android/articles/intel-usb-driver-for-android-devices , read the instruccions if you are in windows 8 (i'm on win7 so i cannot tell you if is the same method or not)
The tools for fastboot (there are in a folder called "google") is a little confused so better download @social-design-concepts miKIT_BATCH HERE (before continue let's say thanks to @social-design-concepts for his useful tool that also works for root ),extract wherever you want in your computer.
the files to flash HEREdownload the package for your device and once donwloaded extract where you want in your computer
NOW FOR FLASH
1.-
Install the intel android usb drivers, if you did this before, skip
2.-
Open the myKIT_BATCH folder and run the "runme.bat" file, then type ACCEPT, after that type 2 and press "enter" (the option 1 is for update the driver, in myKIT_BATCH's post 1 is explained) the font should be red.
3.-
boot into fastboot (press button "power" and button "volume down" at the same time) your tablet's screen will display a blue android with gears inside and below it the "droidboot" text and your device info in your device's top|left screen corner , if yes connect your tablet to pc to recognize it (if is the first time).
4.- Open a command window
after the pc recognizes your tablet unplug and plug again the usb cable, should be faster the recognicion this time.
Then in myKIT_BATCH window press "enter" to refresh, the font will become green and will display your device's info, if is going fine in the window type 4 and press "enter", will appear another window.
IF everything still going fine in the new command window type:
Code:
fastboot devices
will display your device's info
5.- let's start with fastboot
BUT first ENSURE THAT THE BATTERY HAVE A CONSIDERABLE CHARGED LEVEL
Unfortunately i don't know what happens if the tablet power off when flashing and if fastboot will work fine after so check your battery charge first
i need to tell you that the 1-4 steps are the most difficult steps (you should have at this time the rom downloaded and extracted only extract the downloaded package (the .7z file)
after this explained so let's start.
5.1.- WIPING
fastboot have some wipe commands so i will explain the 2 that i used:
Code:
fastboot erase cache
This code explains itself, you can try this code to verify that your device is connected
Code:
fastboot erase data
easy to use but powerful, this will erase app's data and also your internal storage (the 11GB that the tablet have to store files), unfortunately i used this without know and i lost 8GB of files
5.2.- NOW TO FLASH
works almost equal with the wipping commands so it's easy to explain.
let's start with system
for a easy explain you ned to open a window where the rom's files are stored in your pc and in the command shell type "fastboot flash system" and after that drag the system file (system.img.tar.gz) to the command window after dragging the file will appear in the command window the full path of the file
I.E i have a dell venue 8 3830 and i want to flash the jellybean 4.2.2 stock rom so i downloaded the Venue_8_WiFi_JB4.2.2v1.42_FLASHPKG and extract this in F:\VENUE 8 3830\stock rom folder so after type the command and drag and drop the system file in my command window will display this:
Code:
fastboot flash system F:\VENUE 3830\stock rom\VENUE_8_WIFI_JB4.2.2v1.42.system.img.gz
after this the command press "enter" and you don't need to do nothing (maybe your window will turn off and maybe you try to turn on but will keep off, don't worry only let fininsh) the fastboot program will start to prepare the file for upload to the tablet and after that to flash.
this will finish in 1-2 minutes.
NOW THE BOOT.IMG
is the same way than system but faster.
after finishing flashing system (when the window diplays the elapsed time) type: "fastboot flash boot" and drag and drop the boot.img file in the command window
I.E. in my device will be like this:
Code:
fastboot flash boot F:\VENUE 3830\stock rom\VENUE_8_WIFI_JB4.2.2v1.42.boot.img
press "enter" and will do the same like system prepare,upload and flash the file.
there are in the download package more file but only with BOOT and SYSTEM flashed your tab should boot
but if you want to flash the other images you need to type
for recovery:
Code:
fastboot flash recovery F:\VENUE 3830\stock rom\VENUE_8_WIFI_JB4.2.2v1.42.recovery.img
and for fastboot:
Code:
fastboot flash fastboot F:\VENUE 3830\stock rom\VENUE_8_WIFI_JB4.2.2v1.42.fastboot.img
for my example, for you will be change a little
thanks to all who read and understand this guide, bad english
you are free to comment this if i mistake
Click to expand...
Click to collapse
When i installing the driver, always: Install failed, i have Windows 10 and i added language code
ManXXXX said:
When i installing the driver, always: Install failed, i have Windows 10 and i added language code
Click to expand...
Click to collapse
I found this around here, is for windows 8 but maybe useful for Windows 10
https://software.intel.com/en-us/android/articles/how-to-install-intel-usb-driver-for-android-devices-on-windows-8
ADB Driver
Nah nah this, i think ADB driver.
ManXXXX said:
Nah nah this, i think ADB driver.
Click to expand...
Click to collapse
unfortunately i don't have a computer with windows 10 so i can't solve easily.
i found this googling, so with a little of faith :fingers-crossed: , is the same error than yours http://android.stackexchange.com/questions/118823/how-to-install-adb-drivers-on-windows-10-opoit's for the OPO, but is about the same "intalling adb driver", so could work
in a dessesperate attempt, you can use the update usb drivers in "myKit_BATCH" typing "1" after typyng "ACCEPT"
I fixed it with 15 seconds installer!, i gng try to fix tablet
But i found next problem, after connect tab to PC, just UNKNOWN, and tab is not showing in mykit
ManXXXX said:
But i found next problem, after connect tab to PC, just UNKNOWN, and tab is not showing in mykit
Click to expand...
Click to collapse
Ahh that's add driver not recognize your tablet, I suppose that you connect in fastboot mode,
Try using the option of update the adb driver in Mykit_BATCH, you don't lose nothing trying.
Other option is trying the dell's method http://opensource.dell.com/releases/Venue_8_3830_CloverTrail_plus/developer-edition/Download the pdf file and read the instructions from page 2 to page 9 if still not working
here is the sdk tools for windows that the pdf wants
I downloaded SDK tools, i installed Google usb driver, because it say not installed, when it was installing it said: Disable adb driver, ineffectual, error code -1, but after install it work good, so i will test with this, when no i will try another way, that u wrote here
Finally, tried method, no work, finally, update ADB no working for me, cuz installation always fail, next one DELL method, working but i found problem, dell wrote update driver via google extra with codes, BUT
My first code: USB\VID_413C&PID_B119&REV_????, ????, i think there is something wrong
My second code: USB\VID_413C&PID_B119, i think this one is alright, but then up
Finally with dell next page i'm in!, but my kit no working, in every command shut down, so i using windows cmd, it working too
Mhm bruh, no i'm in flash system, sending 'system' awesome, but it's more than 2 minutes , when it will work, omg u r awesome
Bruh, yay, i did it, thq u r master <33
ManXXXX said:
Bruh, yay, i did it, thq u r master <33
Click to expand...
Click to collapse
Are you telling that the dell method works?
The good new is that your tablet is back (with some problems in the way but work, ). after all now you know how to flash through fastboot. If anyelse goes wrong again, you know what to do
NOTE: Maybe your want to replace the framework-res again, but only will work if is for your device. So i recomend that you modify your stock framework-res by yourself (you can use images or xmls from other sources to your framework-res, this should be safer) using apktool manually or a program (there are some of them in xda, choose your favorite )
Yay 50% of dell method worked, just 50% because Dell have tutorial for setting up ADB service, after it i used your tut, thanks, and believe me i will not test it NEVER again.
I got the Dell Venue 8 7840 as an early Christmas gift (for myself, at Best Buy) and was saddened to learn getting root was (nearly) impossible. I followed various guides (many written this summer, before the latest batch of updates - as of December 2015) but found myself nowhere. Then, I found my answer.
Well, fellow root-wanter, I'm here to tell you it is possible, but it won't be easy.
How I Got Here
Right out of the box, I hastily updated to all the latest firmware updates from Dell. That was my biggest hurdle. So if you plan to do this and you haven't updated the device yet, DON'T UPDATE! Follow the several guides here to get root.
Too late? Already screwed the pooch? Read on.
Generally speaking, you need to do a few steps to get where you want to be. They are (roughly) as follows:
Unlock the Bootloader (developer settings change, adb commands)
Use the Intel Flash Tool to flash an earlier firmware, thus making your device able to boot a temporary ClockworkMod Recovery (CWM)
Use clockwork to wipe the system and cache, then reinstall the OS and SuperUser
Reboot and Enjoy!
Here's the long version of steps I took to make this possible:
Getting Started
As a prerequisite, please install at least the minimum adb/fastboot tools. For first timers, ADB is the Android Debug Bridge, which allows command-line access to system level tools when working with an Android device. It's the backbone of this entire process. Fastboot is a debug mode wherein you can run certain commands on the system, without the presence of an OS. As an Android user, and certainly as somebody who's found themselves on XDA, you should become familiar with fastboot and its abilities. You also can (and should) download the entire set of platform tools (part of the Software Development Kit) as a matter of course.
There are several other tools, firmware files, images, etc. that you will need. I've put all the files I used together in a single zip file, which you can download here:
Dell Venue 8 7840 Tools and Files (zip)
* (Thanks to the many contributors on this forum, like toxic_garden, enzymeyllw, mrgardiner and of course xBIGREDDx. Also Chainfire for SuperSU!)
Once you have all your files downloaded, you need to grab the Intel flash tool. My god is that tool a pain in the ballsack. It's also a necessary evil. Give Dell your firstborn, install the damn tool, and let's move on.
Seperately, you will need an SD card with the following files on it: update.zip and UPDATE-SuperSU-v2.46.zip
Ready to Go? Good.
First, enable Developer Options in Android. To do that, go into Settings >> About Tablet >> and tap the Build Number a bunch of times. After some vigorous tapping, a toast message (The little gray-oblong, semitransparent box near the bottom) will pop up and tell you "You're now a developer!". Congrats.
Go into Developer Options, look a few items down the list for "OEM Unlocking" and enable that sucker. If you were successful, it was the first step toward greatness.
If you have to back anything up, now's the time to do it. Because these next steps will wipe your device clean.
Install the Intel Drivers if you haven't already, and in Developer Options enable USB Debugging (it's not too far down below OEM Unlocking)
Some more drivers will install on your PC, and switch it over to Camera (PTP) mode when you see the selection option in the Notification tray. Eventually, if you played your cards right, you'll see an RSA Security request on your device, asking if you want to trust your PC and displaying a hex address. Click OK.
On your PC, find your platform-tools folder (in the Android SDK folder) or wherever you installed the minimal adb/fastboot tools.
In this folder, hold down Shift and right-click, then choose "Open Command Window Here" (alternately, go to the Start menu, type cmd and right-click "Run as Administrator" then navigate to your folder with adb.exe and fastboot.exe in it.)
Cool, take a breather. How are you feeling? Good? Good.
In the black window, type adb devices. You should see a string of numbers or numbers/letters and something like 'unauthorized' in the list. If it's blank, the ADB drivers are not installed properly. Go to your device manager, find anything with a question mark/yellow icon that looks like intel or android or moorefield, and install the drivers manually. You can search XDA if you get stuck on this step.
Back in the black window, type: adb reboot bootloader
Your device should immediately black out and, after a short while, go to the bootloader menu.
From here, go back to the black window and type: fastboot devices
You should see another set of numbers/letters and a word after. As long as you see something, you're golden. If it doesn't show up, you may need to double check those drivers. Another set of drivers will need to install for your device to be seen in this state. Just stick with it, you'll get there.
All good? Then type fastboot oem unlock
You'll get a warning, but just continue on.
Once unlocked, it's time to flash new firmware. Note: For me, this was absolutely the biggest PITA step. The tool was written with virtually no instructions. What follows is how I got it to work.
While you're still in the bootloader menu, you should see confirmation that your device is unlocked. YAY!
Use the menu to boot the device normally. Note: All your user data is gone, so your tablet will act like it's brand new again. Skip through as much BS as you can and get back to the home screen of your tab. Go to settings, and re-enable USB Debugging like last time.
While that's happening, go to your PC and fire up the Intel Phone Flash Tool. (Nice name, Intel.)
Load up the firmware folder "Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397", and specifically choose from the dropdown to flash the file: flash-DDO_BB.xml
If the tool thinks your device is not connected, that's okay. If the tool thinks your device is connected, that's OK too. Don't sweat it.
With the tool still running, as soon as its connected (allow Android Debugging, change to PTP or what have you) hit the Start to Flash button.
It will try about 100 times to find your device (you can see a little console log at the bottom of the tool) ... while it's searching, hold the power button on your device and POWER IT OFF. (Yes, off. Counter-intuitive, I know.)
As it powers off, it will enter some quasi-dream state that Intel dreamed up that will allow it to flash the firmware. Give it a bit of time, and eventually the firmware will flash successfully. HOORAY! You just paved the way for CWM.
Now go back to the folder of files and tools I told you to download, and find the folder "IntelAndroid-FBRL-05-16-2015-PTR" (alternately, search on XDA and find that tool yourself)
Load up the tool, hit accept, then choose option T4 (not T1-3, T4)
If you were successful, it will slowly begin copying over files and having its way with your tablet, and eventually some little white text will appear on your Tablet screen. Soon, ClockwordMod Recovery will start up.
From here, go to Mounts and Storage. Make sure /system is not mounted, and External SD is mounted. Wipe the /system partition, just to be sure. And again, make sure it's not mounted.
Go back to the main CWM screen, and choose "install zip from sd card", and then the option for the external sd.
Find and flash the update.zip file (this will give your cleared out tablet Android 5.1)
Now find and flash UPDATE-SuperSU-v2.46.zip
Go back to the main menu, and Wipe Cache Partition.
Back at the main menu, Reboot System Now.
If all went well and I didn't totally screw up this guide, your newly rooted tablet should boot up. It may appear to be stuck on the Dell loading screen a while, but it's not. Give it time, and Lollipop will come right up.
From here, download SuperUser and BusyBox from Google Play, if either of those things aren't present on your tablet. Now take advantage of Titanium Backup to remove all that unwanted crapware, and Greenify (at least) to keep those pesky apps at bay.
Enjoy! If this worked, please let me know. As I said, this is what worked for me - but everybody's situation is different, and I'm sorry if this did not work for you. Obligatory I am not responsible if your device bricks, dies or otherwise craps the bed. Use this guide at your own risk.
Some threads that helped me through, increased my sanity, and eased my upset stomach:
Toxic_Garden's Guide: http://forum.xda-developers.com/showpost.php?p=64391058&postcount=16
Mr Gardiner's Guides: http://forum.xda-developers.com/showpost.php?p=62833258&postcount=4, http://forum.xda-developers.com/dell-venue/general/7840-stuck-bootloop-bricked-t3178937
Enzymeyllw's Guide: http://forum.xda-developers.com/dell-venue/general/7840-succeed-to-unbrick-t3205024
Insight from xBIGREDDx: http://forum.xda-developers.com/del...-8-7840-developer-files-posted-t3144232/page4
A side note: a few of those unbricking guides tried to have me use the adb shell to send the system image to the device, but I didn't find that necessary. Just flashing update.zip with CWM got me far enough along to get the tablet running. I'm not sure if that will come back to bite me in the ass, but hopefully not.
johnsag49 said:
I got the Dell Venue 8 7840 as an early Christmas gift (for myself, at Best Buy) and was saddened to learn getting root was (nearly) impossible. I followed various guides (many written this summer, before the latest batch of updates - as of December 2015) but found myself nowhere. Then, I found my answer.
Well, fellow root-wanter, I'm here to tell you it is possible, but it won't be easy.
How I Got Here
Right out of the box, I hastily updated to all the latest firmware updates from Dell. That was my biggest hurdle. So if you plan to do this and you haven't updated the device yet, DON'T UPDATE! Follow the several guides here to get root.
Too late? Already screwed the pooch? Read on.
Generally speaking, you need to do a few steps to get where you want to be. They are (roughly) as follows:
Unlock the Bootloader (developer settings change, adb commands)
Use the Intel Flash Tool to flash an earlier firmware, thus making your device able to boot a temporary ClockworkMod Recovery (CWM)
Use clockwork to wipe the system and cache, then reinstall the OS and SuperUser
Reboot and Enjoy!
Here's the long version of steps I took to make this possible:
Getting Started
As a prerequisite, please install at least the minimum adb/fastboot tools. For first timers, ADB is the Android Debug Bridge, which allows command-line access to system level tools when working with an Android device. It's the backbone of this entire process. Fastboot is a debug mode wherein you can run certain commands on the system, without the presence of an OS. As an Android user, and certainly as somebody who's found themselves on XDA, you should become familiar with fastboot and its abilities. You also can (and should) download the entire set of platform tools (part of the Software Development Kit) as a matter of course.
There are several other tools, firmware files, images, etc. that you will need. I've put all the files I used together in a single zip file, which you can download here:
Dell Venue 8 7840 Tools and Files (zip)
* (Thanks to the many contributors on this forum, like toxic_garden, enzymeyllw, mrgardiner and of course xBIGREDDx. Also Chainfire for SuperSU!)
Once you have all your files downloaded, you need to grab the Intel flash tool. My god is that tool a pain in the ballsack. It's also a necessary evil. Give Dell your firstborn, install the damn tool, and let's move on.
Seperately, you will need an SD card with the following files on it: update.zip and UPDATE-SuperSU-v2.46.zip
Ready to Go? Good.
First, enable Developer Options in Android. To do that, go into Settings >> About Tablet >> and tap the Build Number a bunch of times. After some vigorous tapping, a toast message (The little gray-oblong, semitransparent box near the bottom) will pop up and tell you "You're now a developer!". Congrats.
Go into Developer Options, look a few items down the list for "OEM Unlocking" and enable that sucker. If you were successful, it was the first step toward greatness.
If you have to back anything up, now's the time to do it. Because these next steps will wipe your device clean.
Install the Intel Drivers if you haven't already, and in Developer Options enable USB Debugging (it's not too far down below OEM Unlocking)
Some more drivers will install on your PC, and switch it over to Camera (PTP) mode when you see the selection option in the Notification tray. Eventually, if you played your cards right, you'll see an RSA Security request on your device, asking if you want to trust your PC and displaying a hex address. Click OK.
On your PC, find your platform-tools folder (in the Android SDK folder) or wherever you installed the minimal adb/fastboot tools.
In this folder, hold down Shift and right-click, then choose "Open Command Window Here" (alternately, go to the Start menu, type cmd and right-click "Run as Administrator" then navigate to your folder with adb.exe and fastboot.exe in it.)
Cool, take a breather. How are you feeling? Good? Good.
In the black window, type adb devices. You should see a string of numbers or numbers/letters and something like 'unauthorized' in the list. If it's blank, the ADB drivers are not installed properly. Go to your device manager, find anything with a question mark/yellow icon that looks like intel or android or moorefield, and install the drivers manually. You can search XDA if you get stuck on this step.
Back in the black window, type: adb reboot bootloader
Your device should immediately black out and, after a short while, go to the bootloader menu.
From here, go back to the black window and type: fastboot devices
You should see another set of numbers/letters and a word after. As long as you see something, you're golden. If it doesn't show up, you may need to double check those drivers. Another set of drivers will need to install for your device to be seen in this state. Just stick with it, you'll get there.
All good? Then type fastboot oem unlock
You'll get a warning, but just continue on.
Once unlocked, it's time to flash new firmware. Note: For me, this was absolutely the biggest PITA step. The tool was written with virtually no instructions. What follows is how I got it to work.
While you're still in the bootloader menu, you should see confirmation that your device is unlocked. YAY!
Use the menu to boot the device normally. Note: All your user data is gone, so your tablet will act like it's brand new again. Skip through as much BS as you can and get back to the home screen of your tab. Go to settings, and re-enable USB Debugging like last time.
While that's happening, go to your PC and fire up the Intel Phone Flash Tool. (Nice name, Intel.)
Load up the firmware folder "Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397", and specifically choose from the dropdown to flash the file: flash-DDO_BB.xml
If the tool thinks your device is not connected, that's okay. If the tool thinks your device is connected, that's OK too. Don't sweat it.
With the tool still running, as soon as its connected (allow Android Debugging, change to PTP or what have you) hit the Start to Flash button.
It will try about 100 times to find your device (you can see a little console log at the bottom of the tool) ... while it's searching, hold the power button on your device and POWER IT OFF. (Yes, off. Counter-intuitive, I know.)
As it powers off, it will enter some quasi-dream state that Intel dreamed up that will allow it to flash the firmware. Give it a bit of time, and eventually the firmware will flash successfully. HOORAY! You just paved the way for CWM.
Now go back to the folder of files and tools I told you to download, and find the folder "IntelAndroid-FBRL-05-16-2015-PTR" (alternately, search on XDA and find that tool yourself)
Load up the tool, hit accept, then choose option T4 (not T1-3, T4)
If you were successful, it will slowly begin copying over files and having its way with your tablet, and eventually some little white text will appear on your Tablet screen. Soon, ClockwordMod Recovery will start up.
From here, go to Mounts and Storage. Make sure /system is not mounted, and External SD is mounted. Wipe the /system partition, just to be sure. And again, make sure it's not mounted.
Go back to the main CWM screen, and choose "install zip from sd card", and then the option for the external sd.
Find and flash the update.zip file (this will give your cleared out tablet Android 5.1)
Now find and flash UPDATE-SuperSU-v2.46.zip
Go back to the main menu, and Wipe Cache Partition.
Back at the main menu, Reboot System Now.
If all went well and I didn't totally screw up this guide, your newly rooted tablet should boot up. It may appear to be stuck on the Dell loading screen a while, but it's not. Give it time, and Lollipop will come right up.
From here, download SuperUser and BusyBox from Google Play, if either of those things aren't present on your tablet. Now take advantage of Titanium Backup to remove all that unwanted crapware, and Greenify (at least) to keep those pesky apps at bay.
Enjoy! If this worked, please let me know. As I said, this is what worked for me - but everybody's situation is different, and I'm sorry if this did not work for you. Obligatory I am not responsible if your device bricks, dies or otherwise craps the bed. Use this guide at your own risk.
Some threads that helped me through, increased my sanity, and eased my upset stomach:
Toxic_Garden's Guide: http://forum.xda-developers.com/showpost.php?p=64391058&postcount=16
Mr Gardiner's Guides: http://forum.xda-developers.com/showpost.php?p=62833258&postcount=4, http://forum.xda-developers.com/dell-venue/general/7840-stuck-bootloop-bricked-t3178937
Enzymeyllw's Guide: http://forum.xda-developers.com/dell-venue/general/7840-succeed-to-unbrick-t3205024
Insight from xBIGREDDx: http://forum.xda-developers.com/del...-8-7840-developer-files-posted-t3144232/page4
A side note: a few of those unbricking guides tried to have me use the adb shell to send the system image to the device, but I didn't find that necessary. Just flashing update.zip with CWM got me far enough along to get the tablet running. I'm not sure if that will come back to bite me in the ass, but hopefully not.
Click to expand...
Click to collapse
This is fantastic. Can you verify build and firmware versions?
I haven't tried to go back to Stagefright yet. Right now:
Software version: Venue 8 7840-user 5.1 LMY47I
Build: BBP803A171200DEL
@jumpup Why do you quote the first post ?
thedreamix said:
@jumpup Why do you quote the first post ?
Click to expand...
Click to collapse
Force of habit with the XDA premium mobile app.
There is a specific version number for firmware that will indicate if the post-Stagefright firmware is installed. Go in to the My Dell app, and from the top right-hand corner, select Device Info from the list of options.
See the attached screenshot for reference.
Hi John,
thank you for your work. I unlocked my device, but it won't let me get past step 23. What do you mean by turning off? Holding the off button for ten seconds? Holding it shortly, then select shut down? One more thing: It asks me whether I like to proceed with the image on my 7840.
This is my log for the 10sec version:
01/02/16 01:07:37.800 INFO : [Port 1/1/4] XFSTK-STATUS--Detecting Intel Device - Attempt #40
01/02/16 01:07:37.800 INFO : [Port 1/1/4] XFSTK-STATUS--Detecting Intel Device - Timeout
01/02/16 01:07:38.466 INFO : [Port 1/1/4] XFSTK-STATUS--Detecting Intel Device - Attempt #41
01/02/16 01:07:38.466 INFO : [Port 1/1/4] XFSTK-STATUS--Aborting download process.
01/02/16 01:07:38.466 INFO : [Port 1/1/4] xfstkFlashTool exited with error code 13 Unknown error!
01/02/16 01:07:38.468 ERROR : [Port 1/1/4] Command `"C:\Program Files (x86)\Intel\Phone Flash Tool Lite\xfstkFlashTool.exe" "-1" "D:\dell-venue-8-7840-dec-2015\Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397\dnx_fwr_blackburn_qs_rd_opensource.bin" "D:\dell-venue-8-7840-dec-2015\Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397\ifwi_blackburn_qs_rd_opensource.bin" "" "D:\dell-venue-8-7840-dec-2015\Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397\droidboot_dnx.img" "0x80000c27" "none" "none" "0"` failed
01/02/16 01:07:38.469 ERROR : [Port 1/1/4] Flash failed (Command type: Ifwi)
01/02/16 01:07:38.747 INFO : [Port 1/1/4] Device lost on 1/1/4
---------- Post added at 01:41 AM ---------- Previous post was at 01:14 AM ----------
Restarted laptop. It also says this before starting to flash:
01/02/16 01:37:29.545 INFO : OS version detected: Windows 8.1 (x64)
01/02/16 01:37:29.546 INFO : SSL supported: No
01/02/16 01:37:29.587 INFO : Disk space available on drive C:/ : 4.06 GB
01/02/16 01:37:29.642 INFO : Adb and fastboot binaries OK
01/02/16 01:37:29.912 INFO : Phone Flash Tool Lite initialized successfully
01/02/16 01:37:29.919 INFO : [Port 1/1/4] New device detected on 1/1/4 (id=0100030000000002)
01/02/16 01:38:08.931 WARNING: Bootloader DnX file not specified in flash file ("os_dnx" key)
01/02/16 01:38:09.115 INFO : Ready to flash!
01/02/16 01:38:09.125 INFO : Flash file D:\dell-venue-8-7840-dec-2015\Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397\flash-DDO_BB.xml [Default] loaded
Tourist06 said:
Hi John,
thank you for your work. I unlocked my device, but it won't let me get past step 23. What do you mean by turning off? Holding the off button for ten seconds? Holding it shortly, then select shut down? One more thing: It asks me whether I like to proceed with the image on my 7840.
This is my log for the 10sec version:
01/02/16 01:07:37.800 INFO : [Port 1/1/4] XFSTK-STATUS--Detecting Intel Device - Attempt #40
01/02/16 01:07:37.800 INFO : [Port 1/1/4] XFSTK-STATUS--Detecting Intel Device - Timeout
01/02/16 01:07:38.466 INFO : [Port 1/1/4] XFSTK-STATUS--Detecting Intel Device - Attempt #41
01/02/16 01:07:38.466 INFO : [Port 1/1/4] XFSTK-STATUS--Aborting download process.
01/02/16 01:07:38.466 INFO : [Port 1/1/4] xfstkFlashTool exited with error code 13 Unknown error!
01/02/16 01:07:38.468 ERROR : [Port 1/1/4] Command `"C:\Program Files (x86)\Intel\Phone Flash Tool Lite\xfstkFlashTool.exe" "-1" "D:\dell-venue-8-7840-dec-2015\Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397\dnx_fwr_blackburn_qs_rd_opensource.bin" "D:\dell-venue-8-7840-dec-2015\Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397\ifwi_blackburn_qs_rd_opensource.bin" "" "D:\dell-venue-8-7840-dec-2015\Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397\droidboot_dnx.img" "0x80000c27" "none" "none" "0"` failed
01/02/16 01:07:38.469 ERROR : [Port 1/1/4] Flash failed (Command type: Ifwi)
01/02/16 01:07:38.747 INFO : [Port 1/1/4] Device lost on 1/1/4
---------- Post added at 01:41 AM ---------- Previous post was at 01:14 AM ----------
Restarted laptop. It also says this before starting to flash:
01/02/16 01:37:29.545 INFO : OS version detected: Windows 8.1 (x64)
01/02/16 01:37:29.546 INFO : SSL supported: No
01/02/16 01:37:29.587 INFO : Disk space available on drive C:/ : 4.06 GB
01/02/16 01:37:29.642 INFO : Adb and fastboot binaries OK
01/02/16 01:37:29.912 INFO : Phone Flash Tool Lite initialized successfully
01/02/16 01:37:29.919 INFO : [Port 1/1/4] New device detected on 1/1/4 (id=0100030000000002)
01/02/16 01:38:08.931 WARNING: Bootloader DnX file not specified in flash file ("os_dnx" key)
01/02/16 01:38:09.115 INFO : Ready to flash!
01/02/16 01:38:09.125 INFO : Flash file D:\dell-venue-8-7840-dec-2015\Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397\flash-DDO_BB.xml [Default] loaded
Click to expand...
Click to collapse
The boot state he's talking about usually has your device appearing in Device Manager as "Intel Mooresfield Device". It's a maintenance mode for firmware flashing, etc.
A little trivia: the Dell Venue 8 7840 was Intel's initial foray into Android-on-Intel with its newer x86 boards. The Venue (along with the Lenovo Yoga 2 series) are fortunate enough to have this mode. That's why they're "unbrickable" to a large extent. The Venue was a joint venture with Intel's teams and is still their promoted flagship device for devs hopping on to the platform.
So how do I make it work? I didn't find a "Intel Mooresfield Device" in the device manager, but other entries for the tablet.
Settings: Tablet: OEM Unlocking on, USB debugging on
Computer: running Phone Flash Tool Lite. NOT running any other phone related stuff (e.g. ADB) after 2nd try.
A little more trivia: I actually won my tablet at an Intel fair stand, it had a developer sticker on it's back
Tourist06 said:
So how do I make it work? I didn't find a "Intel Mooresfield Device" in the device manager, but other entries for the tablet.
Settings: Tablet: OEM Unlocking on, USB debugging on
Computer: running Phone Flash Tool Lite. NOT running any other phone related stuff (e.g. ADB) after 2nd try.
A little more trivia: I actually won my tablet at an Intel fair stand, it had a developer sticker on it's back
Click to expand...
Click to collapse
CONGRATS ON THAT WIN! Which OS are you using do this?
Thanks! Best win since winning a sleigh as a child!
I'm using Windows 10 64, all updates installed .
Is there any other way to get that info? I went a little nuts when I got root and wiped out a lot of the dell software including my dell.
I'm still stuck at step 23, does anyone know how to get past it?
I'm stuck at 23/24 as well... my device goes black and the flash tool starts trying to do something then starts erroring out with connection failed messages before it finally gives up. Does this tool not work with Windows 10 64bit?
Log Attached
dpicts said:
I'm stuck at 23/24 as well... my device goes black and the flash tool starts trying to do something then starts erroring out with connection failed messages before it finally gives up. Does this tool not work with Windows 10 64bit?
Log Attached
Click to expand...
Click to collapse
Win10 64bit
Flash tool Writing process reach #40
flash failed
Shut down 7840 In writing process #1-30
success
I am getting:
(bootloader) Checking unlock authorization.
FAILED (remote: couldn't change state)
finished. total time: 0.271s
I have switched OEM Unlock on in the Dev Options...... I have another Venue 8 that it worked fine on. I have no idea what the issue is..
I found my issue. I was on the old firmware which did not support the unlock.
On that note why can we not just perm flash a recovery now that we have an unlocked bootloader?
dancrosoft said:
I found my issue. I was on the old firmware which did not support the unlock.
On that note why can we not just perm flash a recovery now that we have an unlocked bootloader?
Click to expand...
Click to collapse
I am stuck at the same place the others were. I dont think this method works any more.
Works great. I was able to follow directions as noted. Worked on Windows 10 X64, and turned off the power button by menu after 2 seconds running the Intel update, and when tablet was fully updated with latest Dell Firmware.
---------- Post added at 01:08 AM ---------- Previous post was at 01:06 AM ----------
I got an update for the Dell firmware. Is it something to install or avoid due to bootlooping and stuffs?
joeminati said:
Works great. I was able to follow directions as noted. Worked on Windows 10 X64, and turned off the power button by menu after 2 seconds running the Intel update, and when tablet was fully updated with latest Dell Firmware.
---------- Post added at 01:08 AM ---------- Previous post was at 01:06 AM ----------
I got an update for the Dell firmware. Is it something to install or avoid due to bootlooping and stuffs?
Click to expand...
Click to collapse
I'd avoid updating for now.
Not sure where to ask this... how can I install permanent CWM (or TWRP) recovery on my 7840? I saw the other thread about CWM 6.0.x but saw no mention of which models of Venue it actually worked on and don't want to brick my device trying it...
Full Disclaimer: All credit for this goes to @enzymeyllw, whose guide I followed. It looks like that guide has gone offline (and has been cloned on a few dozen shameless websites), so I thought I'd rewrite it for the sake of anyone else needing help. All of the files can be found around this site, and I'll do my best to update this later with links. But for now, I'll post the instructions. Additional thanks goes to @xBIGREDDx and @anggusss. Hard to imagine my device has been bricked for the last 9 months... (Also, kinda funny how I just posted this and it has already been ripped off on >3 other websites.)
What you'll need:
Phone Flash Tool: https://01.org/android-ia/downloads/intel-platform-flash-tool-lite
Open-Source Firmware Files: http://opensource.dell.com/releases...s_rd_opensource-blankphone-userdebug-1397.zip
Tethered Root for Windows (Thanks to @social-design-concepts for this): http://forum.xda-developers.com/android/development/intel-android-devices-root-temp-cwm-t2975096
-or-
Tethered Root for Linux / Mac (Thanks to @vampirefo for this): http://forum.xda-developers.com/dell-venue/general/linux-tethered-cwm-recovery-version-t2963104
System and Boot Images (Thanks to @xBIGREDDx for these):
- System.img: https://mega.co.nz/#!w9AjBCSI!YdQenTLDVVk0M9xx1LJT1OnKq5VhESgiyULA1FVIA8A
- Boot.img: https://mega.co.nz/#!Fk4FUSza!1gY1RjvnEI_HS0zk17WTHiywXFWc1VOCH-P2V5fVFPI
1. Phone Flash Tool
- Install USB drivers (if on Windows)
- Install Phone Flash Tool Lite
- Run PFT, open "Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397.zip"
- Select "flash-DD0_BB.xml" and flash it
- Tablet will restart in bootloader, flashing isn't done yet, so wait
- Sometimes it can be hard to get the progress bar past 4% before things fail. Just keep trying if this happens, it'll randomly work.
2. Tethered Recovery ("IntelAndroid-FBRL-07-24-2015.7z")
- Unpack the system image (from "system.zip") to a convenient directory
- With tablet still in Bootloader mode, open app, select CWM mode, then T4
- Phone will restart in CWM once everything loads
3. Flash system
- Go to the mounts / format area, format "/system" and then unmount it
- Insert Micro SD card and mount it
- Format "/external_sd"
- On computer, type "adb push <path-to-system.img> /external_sd/", wait for it to finish
- When finished, type "adb shell" to enter the device shell (make sure the prompt is "~ #" to make sure you are root (or type "whoami" at the prompt to confirm root)
- (If not root, restart to bootloader and trigger the tethered recovery again. You should be root this time.)
- Type in "dd if=/external_sd/system.img of=/dev/block/by-name/system" and wait for it to finish
- When finished, type "exit" on your computer to close the shell
- Reboot the device (to bootloader)
4. Flash boot
- Back on the computer, type in "fastboot devices" to confirm the tablet is connected
- Type "fastboot flash boot <path-to-boot.img" in order to flash the boot
5. Reboot
- On the device, tell it to boot normally
- Wait. It's a first-boot so it's gonna be a bit slow as the cache is built and whatnot
6. Enjoy!
7. (Optional) Root using the Update-SU.zip using the tethered mode again.
I noticed that it won't take any updates so this leaves you vulnerable to the Stagefright bug. It also sometimes boots to the bootloader and waits to you to select normal boot. Sorry. (Anyone know how to help?)
wirebook said:
Full Disclaimer: All credit for this goes to @enzymeyllw, whose guide I followed. It looks like that guide has gone offline (and has been cloned on a few dozen shameless websites), so I thought I'd rewrite it for the sake of anyone else needing help. All of the files can be found around this site, and I'll do my best to update this later with links. But for now, I'll post the instructions. Additional thanks goes to @xBIGREDDx and @anggusss. Hard to imagine my device has been bricked for the last 9 months... (Also, kinda funny how I just posted this and it has already been ripped off on >3 other websites.)
What you'll need:
Phone Flash Tool: https://01.org/android-ia/downloads/intel-platform-flash-tool-lite
Open-Source Firmware Files: http://opensource.dell.com/releases...s_rd_opensource-blankphone-userdebug-1397.zip
Tethered Root for Windows (Thanks to @social-design-concepts for this): http://forum.xda-developers.com/android/development/intel-android-devices-root-temp-cwm-t2975096
-or-
Tethered Root for Linux / Mac (Thanks to @vampirefo for this): http://forum.xda-developers.com/dell-venue/general/linux-tethered-cwm-recovery-version-t2963104
System and Boot Images (Thanks to @xBIGREDDx for these):
- System.img: https://mega.co.nz/#!w9AjBCSI!YdQenTLDVVk0M9xx1LJT1OnKq5VhESgiyULA1FVIA8A
- Boot.img: https://mega.co.nz/#!Fk4FUSza!1gY1RjvnEI_HS0zk17WTHiywXFWc1VOCH-P2V5fVFPI
1. Phone Flash Tool
- Install USB drivers (if on Windows)
- Install Phone Flash Tool Lite
- Run PFT, open "Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397.zip"
- Select "flash-DD0_BB.xml" and flash it
- Tablet will restart in bootloader, flashing isn't done yet, so wait
- Sometimes it can be hard to get the progress bar past 4% before things fail. Just keep trying if this happens, it'll randomly work.
2. Tethered Recovery ("IntelAndroid-FBRL-07-24-2015.7z")
- Unpack the system image (from "system.zip") to a convenient directory
- With tablet still in Bootloader mode, open app, select CWM mode, then T4
- Phone will restart in CWM once everything loads
3. Flash system
- Go to the mounts / format area, format "/system" and then unmount it
- Insert Micro SD card and mount it
- Format "/external_sd"
- On computer, type "adb push <path-to-system.img> /external_sd/", wait for it to finish
- When finished, type "adb shell" to enter the device shell (make sure the prompt is "~ #" to make sure you are root (or type "whoami" at the prompt to confirm root)
- (If not root, restart to bootloader and trigger the tethered recovery again. You should be root this time.)
- Type in "dd if=/external_sd/system.img of=/dev/block/by-name/system" and wait for it to finish
- When finished, type "exit" on your computer to close the shell
- Reboot the device (to bootloader)
4. Flash boot
- Back on the computer, type in "fastboot devices" to confirm the tablet is connected
- Type "fastboot flash boot <path-to-boot.img" in order to flash the boot
5. Reboot
- On the device, tell it to boot normally
- Wait. It's a first-boot so it's gonna be a bit slow as the cache is built and whatnot
6. Enjoy!
7. (Optional) Root using the Update-SU.zip using the tethered mode again.
I noticed that it won't take any updates so this leaves you vulnerable to the Stagefright bug. It also sometimes boots to the bootloader and waits to you to select normal boot. Sorry. (Anyone know how to help?)
Click to expand...
Click to collapse
Any news? I'm stuck at 5.0.2. I wonder if it's possible to port cyanogenmod.
Hey there! Super helpful tutorial and most helpful so far that I found! However, my tablet just goes black after I press Normal Boot and just stays that way. Also when performing ADB Shell (Mac) for some reason it stays in the shell for few seconds and goes back. Any ideas why that might be happening? On top of that I can only enter the shell command really quickly so I have no idea when it finishes copying system.img across... Any help would be appreciated!
Hi guys,
does this method flash the 7840 with a 5.0.2 image or with a 5.1 one?
Thanks
I tried and I can reply to myself: it restores a clean 5.0.2 image ...
EDIT: xposed framework work perfectly on 5.0.2 . I'm perfectly happy with it now
Guys, please disable Driver Signature before installing ANYTHING on your PC to mod, change or rescue your DELL 7840
Intels Platform Flash Tool wont flash ( ifwi error ), and tethered recovery wont upload through bootloader
took me a while to realise itself, even though i did it many many times, after not doing for couple of years, i almost forgott that you need to allow unsigned driver installatino before
have grait ****,
Iko
What if you can't boot into fastboot mode? When I try to boot into fastboot, the screen only shows a battery logo with a question mark inside. I saw that there's a fix for this problem on Intel processor devices like the Zenfone and Del Venue 8 3840 using xFSTK Downloader. But that requires dnx_PRQ.bin and droidboot.img.POS.bin, which I don't Dell ever released. Any solved this problem before?
Flash tool wont detect tablet
So i would love to try this out, im new to this whole thing and have the problem that the flashtool cant find my device
Any Tips ?
I'm unable to get further then 3%, at best. my tablet starts and shows USB icon, nothing more.
anybody has solved this ever ? has unbricked this model ? I have searched everywhere, not found any one person who solved this with usb ICON showing.
please help, if you know how to .
Intel Flashing
You need to use 'On Demand Flash" option from Intel Flash Tool. Start flashing from computer and continue on your device.
For Venue 7840
- Unplug
- Power off
- Press and hold both Volume keys
- Plug USB cable
- Release keys
It will start loading automatically
I've use Intel Flash Tool Lite 5.3.2
wirebook said:
1. Phone Flash Tool
- Install USB drivers (if on Windows)
- Install Phone Flash Tool Lite
- Run PFT, open "Dell_Venue_8_7840_Lollipop_5.0.2_qs_rd_opensource-blankphone-userdebug-1397.zip"
- Select "flash-DD0_BB.xml" and flash it
- Tablet will restart in bootloader, flashing isn't done yet, so wait
- Sometimes it can be hard to get the progress bar past 4% before things fail. Just keep trying if this happens, it'll randomly work.
Click to expand...
Click to collapse
I stucked on step 1. If I use "On demand flash", after the dell plugged in, the program close by itself. If I don't use "On demand flash", it display
Flash failed (Ifwi)
Click to expand...
Click to collapse
Any help is appreciated!
So LeEco ( LeTV or Le ) Launched Their Summer End Device AKA The One and The Only The Flagship Of This Year ( Just jk ) Le MAX 2, This phone has Killer Specs, Killer Price and Everything Which Is Clear and I Also attended the Event which happend in Sirifort India.
Today I'm Going to show You guys a Root Method of The Device, So basically TWRP 3.0.0 Recovery for LeEco Le Max 2 is already available.
Let's Start Doing It :
Firstly Download the following Files :
Download ADB Fastboot Driver : stechguide (dot) com/how-to-install-adb-and-fastboot-on-windows/
Download TWRP 3.0 : androidfilehost (dot) com/?fid=24588239633383558
Download SuperSu : download.chainfire (dot) eu/897/SuperSU/BETA-SuperSU-v2.67-20160121175247.zip
Install TWRP on LeEco Le Max 2 –
1) First enable USB debugging from setting>developer option>. To enable Developer Options, go to About phone and tap the Build Number 7 times.
2) Now go to installation directory open ADB folder and open the command window thereby pressing and hold the ‘shift’ key and right-clicked anywhere in that folder.
3) Now connect your phone to PC and reboot the device into fastboot mode by typing
Code:
adb reboot bootloader
4) You are in Fastboot mode now to check your connection by entering below command in command prompt. It will return your device serial number means your device properly connected. Check your driver if the above command is not responding.
Code:
fastboot devices
5) Type the below command correctly in command prompt and then press enter. It starts flashing recovery on your phone.
Code:
fastboot flash recovery recovery.img
6) YAAY!, you installed the custom recovery on YOUR PHONE!
Time to root :
1) To Root LeEco Le Max 2, first, download the SuperSu zip file from above.
2) Now save the SuperSu zip file to your phone.
3) Boot your device into Recovery mode (TWRP) by pressing ‘Volume Down + Power‘ button.
4) In TWRP recovery navigate to Install Zip and select ‘SuperSu.zip’ to root.
5) Swipe to install SuperSu and reboot your device. yaay! you rooted the device!:laugh:
Enjoy!
DakshMiglani said:
So LeEco ( LeTV or Le ) Launched Their Summer End Device AKA The One and The Only The Flagship Of This Year ( Just jk ) Le MAX 2, This phone has Killer Specs, Killer Price and Everything Which Is Clear and I Also attended the Event which happend in Sirifort India.
Today I'm Going to show You guys a Root Method of The Device, So basically TWRP 3.0.0 Recovery for LeEco Le Max 2 is already available.
Let's Start Doing It :
Firstly Download the following Files :
Download ADB Fastboot Driver : stechguide (dot) com/how-to-install-adb-and-fastboot-on-windows/
Download TWRP 3.0 : androidfilehost (dot) com/?fid=24588239633383558
Download SuperSu : download.chainfire (dot) eu/897/SuperSU/BETA-SuperSU-v2.67-20160121175247.zip
Install TWRP on LeEco Le Max 2 –
1) First enable USB debugging from setting>developer option>. To enable Developer Options, go to About phone and tap the Build Number 7 times.
2) Now go to installation directory open ADB folder and open the command window thereby pressing and hold the ‘shift’ key and right-clicked anywhere in that folder.
3) Now connect your phone to PC and reboot the device into fastboot mode by typing
Code:
adb reboot bootloader
4) You are in Fastboot mode now to check your connection by entering below command in command prompt. It will return your device serial number means your device properly connected. Check your driver if the above command is not responding.
Code:
fastboot devices
5) Type the below command correctly in command prompt and then press enter. It starts flashing recovery on your phone.
Code:
fastboot flash recovery recovery.img
6) YAAY!, you installed the custom recovery on YOUR PHONE!
Time to root :
1) To Root LeEco Le Max 2, first, download the SuperSu zip file from above.
2) Now save the SuperSu zip file to your phone.
3) Boot your device into Recovery mode (TWRP) by pressing ‘Volume Down + Power‘ button.
4) In TWRP recovery navigate to Install Zip and select ‘SuperSu.zip’ to root.
5) Swipe to install SuperSu and reboot your device. yaay! you rooted the device!:laugh:
Enjoy!
Click to expand...
Click to collapse
very good how to! couldn't go wrong.! before step 4 I also check if device is connected via code: adb devices.
if device is not showing up you already know somethin's wrong.
Thank you for the guide. I pushed twrp into my phone without any error and I'm on the OTA 5.8.015S but it doesn't work. I rebooted into recovery and it still gave me the stock recovery screen.
Finally got it to work! After pushing twrp you have to type fastboot boot twrp.img and you will get a screen that looks like it's broken. Leave it alone for about 1 minute or two then the screen will turn off. Then press the power button once only to wake the screen up. From there twrp is working! Thank you to steve mars and jim262 for this tips!
Cannot mount /cust in TWRP
After trying to flash I noticed that after the wipes The failure of /cust cannot be mounted appears.
Can't get adb/fastboot to work on Windows 10
windhoarse00 said:
Can't get adb/fastboot to work on Windows 10
Click to expand...
Click to collapse
Did you ever get a solution for this?
Windows 10 can be a pain at times when it comes to drivers and stuff.
Sörnäinen said:
Did you ever get a solution for this?
Windows 10 can be a pain at times when it comes to drivers and stuff.
Click to expand...
Click to collapse
Were you asking for help or just wanted to help windhoarse00?
Amowagou said:
Were you asking for help or just wanted to help windhoarse00?
Click to expand...
Click to collapse
I don't have the phone yet - a mix of both, as I will be in a similar situation soon.
@Sörnäinen, I have no problem in getting the adb to work on my Win 10 PC although I have no intention to root or install third party ROM on my phone. I am happy with the stock Chinese 18S firmware.
Amowagou said:
@Sörnäinen, I have no problem in getting the adb to work on my Win 10 PC although I have no intention to root or install third party ROM on my phone. I am happy with the stock Chinese 18S firmware.
Click to expand...
Click to collapse
That's welcome news, cheers.
For me rooting a phone and putting a custom ROM of my choice is essential - not to speak of Titanium Backup to transfer all my stuff to the new phone.
I can use adb to reboot the phone into bootloader. But the fastboot seems not working. Anyone has idea?
nflau said:
I can use adb to reboot the phone into bootloader. But the fastboot seems not working. Anyone has idea?
Click to expand...
Click to collapse
Yep. I ended up with the exactly same issue.
Not working at all, no matter what I do.
Hm. Can anyone help? My phone is not being recognized in ADB devices. Not on my Windows 10 machine, not on my windows 7 machine, not on my Mac.
So it must be something on the phone site. Rooting as well as installation of TWRP sadly not possible this way.
Any help available?
Sörnäinen said:
Hm. Can anyone help? My phone is not being recognized in ADB devices. Not on my Windows 10 machine, not on my windows 7 machine, not on my Mac.
So it must be something on the phone site. Rooting as well as installation of TWRP sadly not possible this way.
Any help available?
Click to expand...
Click to collapse
Where did you buy it? I bought from geekbuying two weeks ago. My EUI version is 5.8.0.15S(Stable), and seems like a special build for international user with google play store.
nflau said:
Where did you buy it? I bought from geekbuying two weeks ago. My EUI version is 5.8.0.15S(Stable), and seems like a special build for international user with google play store.
Click to expand...
Click to collapse
Gearbest.
I'm already considering to just keep the EUI, but I do not trust their PlayStore installation...
Ok. For all those who run into troubles:
Windows 10 has driver issues. You need to install a separate fastboot driver via the device manager of Windows.
And the TWRP that's suggested in this thread can have issues - the TWRP von TeamSpain is less temperamental.
I also noted that adb and fastboot only worked from the minimal Adb and fastboot thread here on XDA, the 15 sec version wouldn't want to work on my Windows system.
This was a bumpy ride, heaven's sake.
Sörnäinen said:
Ok. For all those who run into troubles:
Windows 10 has driver issues. You need to install a separate fastboot driver via the device manager of Windows.
And the TWRP that's suggested in this thread can have issues - the TWRP von TeamSpain is less temperamental.
I also noted that adb and fastboot only worked from the minimal Adb and fastboot thread here on XDA, the 15 sec version wouldn't want to work on my Windows system.
This was a bumpy ride, heaven's sake.
Click to expand...
Click to collapse
Where to download the driver? Thanks!
nflau said:
Where to download the driver? Thanks!
Click to expand...
Click to collapse
No need to download. Just choose the list of drivers on the PC and take the one that's made for fastboot.
this is not real for dummies
this is what you forgot
1) after enable debug mode with tapping 7 times build you must actually enabyle usb debug in settings
2) to install the driver in win10 which dont work automatic unrar the adbsetup and then start in driver dir DPInst_x64.exe
3) after I did manage to adb reboot bootloader I got after reboot into the bootloader but then I am stuck
what is recovery image? and fastboot devices shows nothing