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.
Acer Predator 8 GT-810 system\etc backup please!
Make a backup folder etc
Do you still need it? I can send it you tomorrow or something like that.
p8tgames said:
Do you still need it? I can send it you tomorrow or something like that.
Click to expand...
Click to collapse
hey man if u able to send me a back up. Will that solve my problem ?
I made mistake to wipe everything in my phone and now i dont have OS ( i cant start my phone) i can only enter TWRP and thats all. i can use pc to transfer files to my phone and then install the files from there , so i wonder if any1 send me back up will that save me ???
i cand find anywhere OS for acer predator gt 810
there is official avolo zip on acers' page. flash that zip and you're safe
Flash archive corrupted
Hi, I downloaded this archive and I want to flash my tablet, but Intel Phone Flash Tool Lite(flasher for x86 devices) say, that archive corrupted. I downloaded firmware 3 time, but its not working.I used TWRP to install firmware, it installed, but i have BootLoop.Please, someone, do Backup of firmware.
dvijetrecine said:
there is official avolo zip on acers' page. flash that zip and you're safe
Click to expand...
Click to collapse
Hi, I downloaded this archive and I want to flash my tablet, but Intel Phone Flash Tool Lite(flasher for x86 devices) say, that archive corrupted. I downloaded firmware 3 time, but its not working.I used TWRP to install firmware, it installed, but i have BootLoop.Please, someone, do Backup of firmware
Alex_merser54 said:
Hi, I downloaded this archive and I want to flash my tablet, but Intel Phone Flash Tool Lite(flasher for x86 devices) say, that archive corrupted. I downloaded firmware 3 time, but its not working.I used TWRP to install firmware, it installed, but i have BootLoop.Please, someone, do Backup of firmware
Click to expand...
Click to collapse
Use fastboot to flash the stock ROM instead of Intel flash tool. (If you know what you're doing, just read the part in blue below.)
fastboot is for Android devices, whether they have Qualcomm or Intel processors. Using Intel Flash tool is more akin to using Qualcomm's QPST for flashing, which is also something that should only be attempted
after trying fastboot. The Intel flash tool expects the .zip file to be in a format such as a Chuwi ROM with Windows is. Intel Flash tool unfortunately doesn't expect the .zip to be in the Android format like Acer's stock
ROM "AV0L0-something.zip" is.
With the tablet off, and plugged into your computer, hold both volume buttons and power it on. (You probably already knew this step, but here just in case )
It will vibrate longer than it usually does when turning on.
The screen should indicate that the device is in download, or "dnx" mode.
Open a command prompt in administrator mode,(the title of the window should say "Administrator: Windows Command Prompt" or "Administrator: <current directory>")
Type:
Code:
fastboot
If command not found, then either copy fastboot.exe into System32, or add the path it is in to your PATH variable, or simply navigate to its directory within the command prompt.
If you're not familiar with the PATH variable, you can just shift+right-click on fastboot.exe, click "Copy Path" and then paste it into the command prompt to use it's full path in place of simply "fastboot".
Once you're able to type "fastboot" or paste the full path and press enter and it returns the fastboot help message, type:
Code:
fastboot devices
this will either return a single line containing your device's serial number, or it will return nothing at all
If you see a serial number, you're in business.
(make sure the tablet is not low on battery before you continue):
Type:
fastboot update <path to ROM .zip>
Click to expand...
Click to collapse
This should initiate a full reflashing of the stock ROM. The tablet will reboot a couple times, you should hear/feel an even longer vibration during the process, do not touch it or unplug it from the computer until it is at the initial Google device setup screen waiting for your input.
Note that this full reflashing will also overwrite TWRP with the stock recovery.
if "fastboot devices" returns nothing at all, and also doesn't say "command not found" then do the following:
open device manager on computer, find the tablet's driver (may be under portable devices, or COM ports. sometimes under USB.)
if you can't find it, look for an "unknown device" with a yellow exclamation mark on it. If you see that, then you may not have had the driver installed in the first place. To verify, unplug the tablet from the computer
and see if the unknown device disappears from device manager.
If you were able to find the tablet in device manager, then right click and "Uninstall Device" and be sure to check the box to uninstall the driver software as well before clicking OK.
Then, unplug the tablet from your computer if you haven't already.
Download the latest driver from the same place on Acer's website that you downloaded the stock ROM from. Install the driver and restart your computer if it says it needs to.
Afterward, ensure the tablet is off and try the steps above again.
biorpg said:
Use fastboot to flash the stock ROM instead of Intel flash tool. (If you know what you're doing, just read the part in blue below.)
fastboot is for Android devices, whether they have Qualcomm or Intel processors. Using Intel Flash tool is more akin to using Qualcomm's QPST for flashing, which is also something that should only be attempted
after trying fastboot. The Intel flash tool expects the .zip file to be in a format such as a Chuwi ROM with Windows is. Intel Flash tool unfortunately doesn't expect the .zip to be in the Android format like Acer's stock
ROM "AV0L0-something.zip" is.
With the tablet off, and plugged into your computer, hold both volume buttons and power it on. (You probably already knew this step, but here just in case )
It will vibrate longer than it usually does when turning on.
The screen should indicate that the device is in download, or "dnx" mode.
Open a command prompt in administrator mode,(the title of the window should say "Administrator: Windows Command Prompt" or "Administrator: <current directory>")
Type:
If command not found, then either copy fastboot.exe into System32, or add the path it is in to your PATH variable, or simply navigate to its directory within the command prompt.
If you're not familiar with the PATH variable, you can just shift+right-click on fastboot.exe, click "Copy Path" and then paste it into the command prompt to use it's full path in place of simply "fastboot".
Once you're able to type "fastboot" or paste the full path and press enter and it returns the fastboot help message, type:
this will either return a single line containing your device's serial number, or it will return nothing at all
If you see a serial number, you're in business.
(make sure the tablet is not low on battery before you continue):
Type:
This should initiate a full reflashing of the stock ROM. The tablet will reboot a couple times, you should hear/feel an even longer vibration during the process, do not touch it or unplug it from the computer until it is at the initial Google device setup screen waiting for your input.
Note that this full reflashing will also overwrite TWRP with the stock recovery.
if "fastboot devices" returns nothing at all, and also doesn't say "command not found" then do the following:
open device manager on computer, find the tablet's driver (may be under portable devices, or COM ports. sometimes under USB.)
if you can't find it, look for an "unknown device" with a yellow exclamation mark on it. If you see that, then you may not have had the driver installed in the first place. To verify, unplug the tablet from the computer
and see if the unknown device disappears from device manager.
If you were able to find the tablet in device manager, then right click and "Uninstall Device" and be sure to check the box to uninstall the driver software as well before clicking OK.
Then, unplug the tablet from your computer if you haven't already.
Download the latest driver from the same place on Acer's website that you downloaded the stock ROM from. Install the driver and restart your computer if it says it needs to.
Afterward, ensure the tablet is off and try the steps above again.
Click to expand...
Click to collapse
Thank you, but I just entered EFI and load android.efi file, also I autorun it and reflash via recovery
Hi all,
I'm not an expert with flashing ROMs/recovery and stuff, but I think I know the basics. So, if I was missing something, please forgive me in advance
I'm trying to install TWRP on my Oukitel K6000 Pro, but can't do it for some reason. The things I tried:
1. Rooting my phone w/ kingroot to install flashify. Kingroot failed to root my phone.
2. Via linux machine, using fastboot command. Fastboot failed installing the recovery (USB debugning was turn on. OEM unlocking was turn on, but I wasn't sure I even needed it). Error message I got: "FAILED (remote: download for partition 'recovery' is not allowed"
3. Using windows 7 and windows 10 machines to install it via SP-flash-tool (USB debuging and OEM unlocking was turned on). The SP-flash-tool did not recognized my phone.
4. Using SP-flash-tool with FWUL live-CD. It did not recognize my phone.
5. Using SP-flash-tool with linux machine. It did not recognize my phone.
As for #3 above, I was trying to install MTK drivers before performing the flash process. I think I got it right (for the win10 machine, I rebooted to a mode without signature check as required), but I'm not sure though.
If anyone can step in and help with that - I would much appreciate it.
Thanks in advance,
Tamir
you need the right drivers and the right adb tool.
Download adb tools of android sdk, google it.
Then download the oukitel drivers-> Driver_Auto_Installer_v5.1453.03, search for those., install them.
Try again, good luck.
Rooting and unlocking your phone will format your phone, beware of losing everything on it.
Btw, never use kingroot. Use latest SP Flashtool Version 1728,
Guide:
Download Magisk V16 or SuperSu to your micro sd on your phone.
--(Download your desired firmware, if you want to upgrade as well. (if you want, not needed, since you only want to root or install twrp)--
Download SPFlashTool compatible TWRP from a site that i can't mention here.
Turn off your phone.
Open Splflashtool, select the Android Scatter file that was downloaded with your twrp.
A little bit under that, select Download Only, and NOT firmware ugprade etc.
Now click Download, connect your turned off phone to your pc.
You should hear a windows sound, look at the tool and DO NOT Disconnect your phone. until a popup with Success and a green Symbol appears.
be patient and let it run. (shouldn't actually take longer than 3-5seconds)
After it is done, press simultaneously the Power and Volume+ Keys until a really small menu on the left side screen appears.
Now you can navigate with the Volume+ Key, from the top to the bottom, in an endless loop.
With the Volume- Key you can select on of the three options:
Recovery <-this is what we want, select it!
Fastboot (not really needed for us)
Normal (normal Reboot - Start of the phone)
You will now see the bootlogo, then the twrp menu will show up.
Now you can Flash Magisk or SuperSu for Root. Wipe Dalvik and cache, Reboot, Enjoy.
Hi,
I have encountered a suddenly dead old device. It was working long time without an issue, but one day it does not start and just a logo is displayed. It was possible to turn off the device or enter the recovery menu. I have found more posts about repairing with some unofficial flash tools or using unofficial ROMs.
I was able to revive the device finally with success and using official tools only, so I would like to share the steps I have used, basically it is about downloading the official ROM from Acer site and flashing it with ADB:
1. You will need Windows computer, I was not able to make the Mac recognise the phone properly, but maybe it is somehow possible.
2. Download official Android 4.4.2 ROM from ACER site: https://www.acer.com/ac/en/GB/content/drivers
enter SNID (check the phone under cover), look in OS category and download, the ZIP file is ~700MB large, do not unzip.
Download also the Drivers and extract it.
No need to download unofficial ROMs or drivers for this phone I think.
3. Download android platform tools from https://developer.android.com/studio/releases/platform-tools and unpack to some directory
4. Install phone Drivers manually from Device manager, use Action/Add device command and navigate to INF in the driver folder.
5. Turn on the phone and star recovery mode (Vol down+Power).
6. Connect the charged device with USB cable.
7. Start cmd.exe and navigate to platform-tools directory, start "adb devices" command, your device should be listed.
If no device is listed, return to driver installation step.
8. start "adb reboot bootloader", phone will reboot, hint about flashing the ROM appears
9. start "adb sideload yourpathto/officialROM.zip
10. wait few minutes until the installation is finished, phone reboots and should work.
11. you are happy
Hey,
2 Years ago my E700 dropped down, since then it does not work anymore. It shows no reaction if i want to start the device.
Could something be broken?
Do you have an idea to fix it?
All of us knows that we upgraded to OxygenOS 12 stable or beta but OnePlus didn't given roll back package so who are stucked on OOS 12 can now downgrade using this process.
This is downgrade process by using relive dvd based MTK client Tutorial booted using Pendrive on window pc.
Remember to follow this you need some patience and flashing knowledge and risk of bricking device if u don't follow correctly.
If you cannot bear this in mind then please don't follow blindly
This process also works for eu regions if you flashed indian open beta oos12 file.
Windows based MTk client application is available and its very good option but for me it's not detecting the the device so I will create another tutorial soon using that tool.
Requirements:
1) PC with all fastboot ,adb drivers and mediatek vcom drivers installed
3) Pendrive or use separate partation on hard drive
4) download files given below
5) patience and some flashing knowledge is must
Download MTk client relive dvd:
https://androidfilehost.com/?fid=15664248565197177367
Mirror link:
https://drive.google.com/file/d/10OEw1d-Ul_96MuT3WxQ3iAHoPC4NhM_X/view?usp=sharing
How to flash relive dvd in pendrive using Rufus that tutorial can be found here:
Relock bootloader and get stock recovery oneplus nord 2 Indian/EU: works for any MTK device
Note: This process is shown for OnePlus Nord 2 and work for any MTK device just replace files as per your model you need to Serch for that) Credits @Raygen @TheWing After relocking bootloader you can do safety net pass check to confirm by...
forum.xda-developers.com
Download Oxygen OS 11 firmware backup choose latest as per your device model
Indian DN2101 EU DN2103 and PACMAN)
Extract and save to pc harddrive/relive dvd in PC/laptop
https://gist.github.com/Giovix92/c7e69123dbc51adf3f3a26f9c3c0208e#backup-zips-links
DOWNLOAD PRELOADER BIN FILE:
INDIAN (copy and save it to pc in separate folder)
https://drive.google.com/file/d/1E2yL8uJA7tubHHlqHKkHkJffcCUrllAl/view?usp=drivesdk
EU regions (unzip and take out bin file)
https://forum.xda-developers.com/attachments/preloaderdump_stock-zip.5597685/
Notes :
1)Keep one Harddrive on pc free of space above 30GB
2) you will loose all data so keep full backup
Disclaimer
I am not responsible for anything happens to your device your device your responsibility!
Steps:
A) Baking up the OOS 12 firmware and preloader
1) first keep your pc powered off
2) connect relivedvd iso pendrive and power on the pc and while booting repeatedly press boot menu key fo your pc model you will get about boot menu key info in google search
3)u will get boot menu from there select connected usb pendrive
4)now u will see mtk client relivedvd boot option select first one
5)phone will boot to xubuntu which is nothing but mtk client ready to go environment
6)Now go to file manager on dextop create backup folder to backup your current oos12 name it as you wish.
Remember create this folder in HDD which has more than 30gb space
7) create another folder to take backup of preloader of oos12 in same folder.
8)now trasfer extracted oos11 firmware in same hdd which has all images file.
9)now create seperate folder to save preloader of oos 11 and trasfer the boot1.bin( preloader file) in this folder which we have to flash later.
10)now open mtk client app which ia available on pc dextop
11) take phone in hand power off it, connect one end of usb cable to pc don't connect another end to phone first long press vol up+ down and connect phone to pc keep buttons pressed Until some connection activity of moving circle will be seen in mtk client
12) if it's seen immediately release the buttons now you gets read Partation tab in the mtk client
13)tap on read Partation and select the backup folder you created in hdd.
While selecting the hdd you need to go to computer>media> user there u see all hdd select the hdd where u placed the backup folder.
14) immediately after selecting the folder backup starts ,you will see progress bar at bar in mtk client this will take 25min or more out 2 hr as per your pc model
15)now you gets 100% notification after backup completion now go to flash partation tab and select read preloader
Now select the folder you created to save the preloader file and tap save button from to right corner.
Your preloader for oos12 will be get saves to pc
B) flagshing oos 11 firmware
1) Now go to write partation tab and tap select from directory button
And locate the extracted partation folder.
all paratations automatically gets settled to respective tab in mtk client.
Remember some partation are empty like nvdata, protect and persist don't worry still our device will work
2)tap write partation tab and flagshing starts once done you get 100% progress bar in mtk client.
3)now we need to falsh preloader go to flash tool tab now tap write preloader
Select the preloader from folder where u saves the downloaded from download section.
4)tap open tab from top right corner but this time nothing happens in progress bar and mtk client will gets freeze.
Don't worry our work has done here.
5)now remove usb cable from device and long press vol up+power
6) phone will boots to recovery there tap wipe and format data and your phone will boots to oos12
7) check about phone and see all things working or not like FP, CAMERA etc.
Very imp trouble shooting :
After falshing oos 11 firmware and when you boots if you gets corrupt boot image screen then long press vol up+down +power
Phone will boot to fastboot mode
Now open terminal app on dextop ( or use windows cmd if it's not detecting)
Then reboot back to fastboot type
Fastboot flashing unlock
Press vol up on phone
Now in terminal type fastboot reboot
hello there, i was following your tutorial but i have encountered into a major issue.
MTK Client is stuck at connection handshake error, retrying
i am using it MTK live cd 4 from the link you have provided. Phones get detected and nothing further from there, i have error going back to Bootloader ''the serial not match and fastboot verify fail'' and i cant downgrade my phone to OOS 11.
I have tried almost everything but its not letting me to connect it with MTK client
Try easier way : Click (new current method)