Related
first off, i just wanted to state, before i get ripped into, i have spend the last 1.5 days reading everything i can find on any forum that comes back with search results for my issue. i've tried numerous drivers, different PC's, even a Linux Live CD system.
I cannot get my PC (win 7, 32 bit) to see my TF201 via ADB.
It is installed in the device manager with the "universal naked driver 0.7", and shows up as "Asus Transformer Prime ADB Interface". But whenever i try to connect via ADB to run the fix in this thread - http://forum.xda-developers.com/showthread.php?t=1514088 - i cannot see the device.
I have tried all of the mount/unmount options in CWM. nothing is working for me.
is there anyone that has run into this? And if so, have you found a resolution?
sorry if i'm coming off as the typical noob here, but i really have put in time researching the issue and attempting other fix-it routes before posting up a help thread.
Thanks!!
perch_44 said:
first off, i just wanted to state, before i get ripped into, i have spend the last 1.5 days reading everything i can find on any forum that comes back with search results for my issue. i've tried numerous drivers, different PC's, even a Linux Live CD system.
I cannot get my PC (win 7, 32 bit) to see my TF201 via ADB.
It is installed in the device manager with the "universal naked driver 0.7", and shows up as "Asus Transformer Prime ADB Interface". But whenever i try to connect via ADB to run the fix in this thread - http://forum.xda-developers.com/showthread.php?t=1514088 - i cannot see the device.
I have tried all of the mount/unmount options in CWM. nothing is working for me.
is there anyone that has run into this? And if so, have you found a resolution?
sorry if i'm coming off as the typical noob here, but i really have put in time researching the issue and attempting other fix-it routes before posting up a help thread.
Thanks!!
Click to expand...
Click to collapse
Update****
I was able to get it out of the boot loop, so that it will boot to the splash screen. well following instructions i've found online, when in CWM, i connected through ADB and pushed a copy of cm9.zip up to the internal storage.
yet, whenever i choose "install from zip" in CWM, it never finds the zip file.
i have done it a few times now and it says it copies up completely, but never actually shows up.
syntax i'm using: adb push cm9filename.zip "/sdcard/cm9filename.zip"
it takes about two minutes and gives me confirmation that it pushed x amount of bytes of data for the file, and says its done. I then go back to the tablet in CWM and choose install from sdcard, and it says there are no files.
I'm about ready to throw this thing in the trash and be done with it......
First of all make a small text file and zip it up for a test file that wont take long to push.
Now type adb push test.zip /data/media/
look if the file is showing where you go to install a rom.
If it is showing then push the rom to the same place then install it
flumpster said:
First of all make a small text file and zip it up for a test file that wont take long to push.
Now type adb push test.zip /data/media/
look if the file is showing where you go to install a rom.
If it is showing then push the rom to the same place then install it
Click to expand...
Click to collapse
If that fails, I had the same issue with cwm, I installed twrp via fastboot and haven't had the problem of the file not showing up after adb push. Fustrating I know.... I tired everything I could think of in cwm multiple reboots different usb ports... on an on......
Please HELP CWM Roocovery Loop!!!
perch_44 said:
Update****
I was able to get it out of the boot loop, so that it will boot to the splash screen. well following instructions i've found online, when in CWM, i connected through ADB and pushed a copy of cm9.zip up to the internal storage.
yet, whenever i choose "install from zip" in CWM, it never finds the zip file.
i have done it a few times now and it says it copies up completely, but never actually shows up.
syntax i'm using: adb push cm9filename.zip "/sdcard/cm9filename.zip"
it takes about two minutes and gives me confirmation that it pushed x amount of bytes of data for the file, and says its done. I then go back to the tablet in CWM and choose install from sdcard, and it says there are no files.
I'm about ready to throw this thing in the trash and be done with it......
Click to expand...
Click to collapse
I am having the same exact problem. It started when I tried to restore my stock backup that I made using CWM 5.8.2.0 coming from the CM rom. I am stuck in the CWM recovery screen and cant get ADB to see the TF Prime. I just get error: device not found. How did you manage to push a zip if ADB wasn't seeing your device? I have been looking for a fix for the last week now.
Forget CWM fastboot flash TWRP then load your rom via microsd.....
Danny80y said:
Forget CWM fastboot flash TWRP then load your rom via microsd.....
Click to expand...
Click to collapse
How do I flash TWRP when Im stuck CWM?
hellshavoc said:
How do I flash TWRP when Im stuck CWM?
Click to expand...
Click to collapse
The answer is in the post you quote, did you read it? Fastboot, see on twrp site.
Striatum_bdr said:
The answer is in the post you quote, did you read it? Fastboot, see on twrp site.
Click to expand...
Click to collapse
the problem is whenever it try to fastboot it just keeps saying waiting for device. I can put my TF prime in fastoot mode when I power on while holding down on vol it just goes right to CWM recovery and any adb command gives me no device found and I tried APX mode (holding vol up during power on) and tried to use NVFlash but that just gives me an error device not recognized. I have all the drivers installed. I used the naked drivers .7 and have cleared out all the old drivers too.
hellshavoc said:
the problem is whenever it try to fastboot it just keeps saying waiting for device. I can put my TF prime in fastoot mode when I power on while holding down on vol it just goes right to CWM recovery and any adb command gives me no device found and I tried APX mode (holding vol up during power on) and tried to use NVFlash but that just gives me an error device not recognized. I have all the drivers installed. I used the naked drivers .7 and have cleared out all the old drivers too.
Click to expand...
Click to collapse
you hold the volume down until the screen starts, then you let go and wait
whycali said:
you hold the volume down until the screen starts, then you let go and wait
Click to expand...
Click to collapse
As I stated above holding down Val down while turning on does not bring up the menu it still just boots right into CWM recovery. i have no option for fastboot or anything.
hellshavoc said:
As I stated above holding down Val down while turning on does not bring up the menu it still just boots right into CWM recovery. i have no option for fastboot or anything.
Click to expand...
Click to collapse
No, you hold Vol down + power then when the first screen with sentences appears you release everything DON'T touch anything, after 5 secondes you will end in a screen with three icons, with volume down youu select the usb icon in the middle, then volume up.
This procedure works even on locked devices except that in this case you don't have the usb icon, only the factory reset and cold reboot ones. So it's impossible you don't obtai this screen, it's hardware coded.
It is confusing but just keep trying till you get it!! Once there go to the TWRP site they have the file and the fastboot commands all set in a guide.
I have exactly the same problem than you.
I had the fastboot/adb connection (I used to push the rom by adb), but i tried to install a wrong version on gapps. Since then, I'm stock in the recovery mode without adb/fastboot connection.
If you find a solution for that, pleaze post it !!
Striatum_bdr said:
No, you hold Vol down + power then when the first screen with sentences appears you release everything DON'T touch anything, after 5 secondes you will end in a screen with three icons, with volume down youu select the usb icon in the middle, then volume up.
This procedure works even on locked devices except that in this case you don't have the usb icon, only the factory reset and cold reboot ones. So it's impossible you don't obtai this screen, it's hardware coded.
Click to expand...
Click to collapse
Hello
I got my HDX rolled back today, rooted it using Towelroot, all worked fine
Installed FLASHR and there was an image I had for TWRP, I tried mounting it as recovery but failed, then there was a Kernel option which I did install it with (The same TWRP Image), when the device rebooted it was stuck in Grey Kindle Fire screen,
I read around for methods and found some, the problem is that my device is not seen by ADB and when connected to USB there is no response.
Can this device be unbricked? Do I need the fastboot cable?
I also have taken a backup using FLASHR and it stayed on the device, is this useful?
Thanks for your time
TWRP is not compatible with 3.2.8. Try powering up by holding the on/off and volume-up buttons together. It's possible Amazon's (crippled) recovery is still intact. From there you may be able to reset your device. If successful read through the forums to determine what is possible. Options with 3.2.8 are limited.
Davey126 said:
TWRP is not compatible with 3.2.8. Try powering up by holding the on/off and volume-up buttons together. It's possible Amazon's (crippled) recovery is still intact. From there you may be able to reset your device. If successful read through the forums to determine what is possible. Options with 3.2.8 are limited.
Click to expand...
Click to collapse
Thanks for your reply, I did try power + volume up still got the grey Kindle Fire logo, I did read a lot in this forum but didn't succeed in finding a good solution
I got the factory Cable
The device was recognised as USB, a black screen was showing.
I tried ADB it said device not found
also fastboot -i 0x1949 etc keeps waiting for a device
any hint? is the device dead?
mrewen said:
Hello
I got my HDX rolled back today, rooted it using Towelroot, all worked fine
Installed FLASHR and there was an image I had for TWRP, I tried mounting it as recovery but failed, then there was a Kernel option which I did install it with (The same TWRP Image), when the device rebooted it was stuck in Grey Kindle Fire screen,
I read around for methods and found some, the problem is that my device is not seen by ADB and when connected to USB there is no response.
Can this device be unbricked? Do I need the fastboot cable?
Click to expand...
Click to collapse
No, this device is bricked for good assuming that your device was on FW xx.3.2.8:
- you writed incompatible twrp image on recovery and also on boot partition, the second flash was deadly
The only option for custom rom for FW xx.3.2.8 is to use safestrap and nexus for safestrap 1.0.1.
Hello
I think I've bricked my P760. When i want to run my phone it stuck on LG logo and can't boot to OS. Everything was fine but after installing fix to camera i could boot to OS my phone once and after reboot i can't boot to OS anymore. My phone has root, unlocked bootloader, custom recovery and custom ROM. I don't have acces to recovery. I have only acces to bootloader mode with fastboot (VOL+ + HOME + POWER). Then i have a note "Welcome to LG Fastboot Mode ". My computer detects it and automatically installs drivers (Fastboot interface (Google USB ID). But the problem is that in Device Manager it all time blinks. It's connected and immediately dissconects. I'm using original USB cable from LG charger. When i'm trying to use cmd in fastboot & adb files it's waiting for device all the time.
I don't know what I should do next :C
Pls help guys
SaRLaY said:
Hello
I think I've bricked my P760. When i want to run my phone it stuck on LG logo and can't boot to OS. Everything was fine but after installing fix to camera i could boot to OS my phone once and after reboot i can't boot to OS anymore. My phone has root, unlocked bootloader, custom recovery and custom ROM. I don't have acces to recovery. I have only acces to bootloader mode with fastboot (VOL+ + HOME + POWER). Then i have a note "Welcome to LG Fastboot Mode ". My computer detects it and automatically installs drivers (Fastboot interface (Google USB ID). But the problem is that in Device Manager it all time blinks. It's connected and immediately dissconects. I'm using original USB cable from LG charger. When i'm trying to use cmd in fastboot & adb files it's waiting for device all the time.
I don't know what I should do next :C
Pls help guys
Click to expand...
Click to collapse
I can help you. i just figured it out after walking away for a few weeks. pm me and ill tell you over google+ or skype and walk you through it.
i have same problem.
can someone solved it?
SaRLaY said:
Hello
I think I've bricked my P760. When i want to run my phone it stuck on LG logo and can't boot to OS. Everything was fine but after installing fix to camera i could boot to OS my phone once and after reboot i can't boot to OS anymore. My phone has root, unlocked bootloader, custom recovery and custom ROM. I don't have acces to recovery. I have only acces to bootloader mode with fastboot (VOL+ + HOME + POWER). Then i have a note "Welcome to LG Fastboot Mode ". My computer detects it and automatically installs drivers (Fastboot interface (Google USB ID). But the problem is that in Device Manager it all time blinks. It's connected and immediately dissconects. I'm using original USB cable from LG charger. When i'm trying to use cmd in fastboot & adb files it's waiting for device all the time.
I don't know what I should do next :C
Pls help guys
Click to expand...
Click to collapse
mirul_up said:
i have same problem.
can someone solved it?
Click to expand...
Click to collapse
pseudosane said:
I can help you. i just figured it out after walking away for a few weeks. pm me and ill tell you over google+ or skype and walk you through it.
Click to expand...
Click to collapse
Go through this thread http://forum.xda-developers.com/showthread.php?t=2292828 it will definitely solve your problem, from the screen-shot it seems that you are using windows 10, i'm not sure that omap4430 drivers will work on windows 10 or not, but you'll try otherwise do the process on windows 7, your phone will revive...
@Codeplex its to complicated thread.
before mine become like this my phone alway succes writing recovery via adb fastboot but now i try writing recovery via adb fastboot always filed.
flashing firmware with cmahendra method always get 15% error..
I think all dev not care anymore about our phone..,
After upgrading to CM 12.1 everything was just fine. Got my tablet to charger and left it there for a while. And then i saw that i was looping.
It's trying to enter recovery (TWRM) "or something like" and restarting.
I' sitting on forum for 3 days already. trying to get some information and did lot's of things. Nothing helps.
Can anyone help me with this somehow? I'm almost crying and losing it (not really, but that what i feel inside)
Please. Any help. I think I've read all forum about this thing.
Thank you.
Do you have the real TWRP (i.e. not Safestrap!) & an unlocked bootloader?
don't think so. or better say i'm not sure about it. how can i check?
Edit:
i can run adb and after command "adb devices" it shows serial number and status: recovery.
i can use the command adb reboot-bootloader which puts me in fastboot mode. but then i try adb devices and have nothing there.
also, any command like "fastboot...." gets me to "waiting for device" and nothing more.
I tried two different computers. all ports. all cables that i've found.
Edit 2:
also after command "adb shell" i ca see "~ # ←[6n" and i can put there only reboot command
Well, first of all CM12.1 requires TWRP & an unlocked bootloader, if you don't have those, flashing CM12.1 was a bad idea.
So what happens during boot? Do you see the Safestrap logo and had to either wait 10 seconds or press continue to boot? Can you enter Safestrap there by pressing Recovery? Which Safestrap version is it (if any)?
The real TWRP can be accessed by pressing and holding Volume up, then pressing and holding Power, release both when the grey Kindle Fire logo appears on screen.
As having TWRP is a key requirement here, it's important to figure out what you really have (either Safestrap or TWRP).
And do NOT do a factory reset in amazon's stock recovery with Safestrap installed! Will brick the HDX!
As @Davey126 mentioned here you can check whether the bootloader ist unlocked by opening a fastboot prompt (i.e. DOS box, then change dir to your adb directory), then enter:
fastboot -i 0x1949 oem idme
You will only get a response if unlocked.
If you use Windows and get the waiting for device fastboot issue, try these drivers, could be a pain in the ass to install them in Win8(.1)/Win10 x64 though. And note that you probably need to (re-)install the original Amazon Drivers again to get the HDX noticed in Explorer in order to get files copied it.
Cl4ncy said:
Well, first of all CM12.1 requires TWRP & an unlocked bootloader, if you don't have those, flashing CM12.1 was a bad idea.
So what happens during boot? Do you see the Safestrap logo and had to either wait 10 seconds or press continue to boot? Can you enter Safestrap there by pressing Recovery? Which Safestrap version is it (if any)?
The real TWRP can be accessed by pressing and holding Volume up, then pressing and holding Power, release both when the grey Kindle Fire logo appears on screen.
As having TWRP is a key requirement here, it's important to figure out what you really have (either Safestrap or TWRP).
And do NOT do a factory reset in amazon's stock recovery with Safestrap installed! Will brick the HDX!
As @Davey126 mentioned here you can check whether the bootloader ist unlocked by opening a fastboot prompt (i.e. DOS box, then change dir to your adb directory), then enter:
fastboot -i 0x1949 oem idme
You will only get a response if unlocked.
If you use Windows and get the waiting for device fastboot issue, try these drivers, could be a pain in the ass to install them in Win8(.1)/Win10 x64 though. And note that you probably need to (re-)install the original Amazon Drivers again to get the HDX noticed in Explorer in order to get files copied it.
Click to expand...
Click to collapse
Also verify you have a Kindle HDX ... not HD or generic Fire.
the fastboot command got me still only 1 message "waiting for device"
Tried to install drivers. While looping, in device manager, i can see "Fire devices: Android composite ADB Interface"
and "Portable devices: MTP USB Device"
If i enter fastboot mode, gets me to "Other devices: Unknown device" and i just cant figure out how to install the drivers. Tried to download some stuff. plugged, unplugged.
Edit:
After some work done with drivers, i input adb kill-server and adb devices and get "Serial Number Unauthorized"
So maybe i should change word "work" to "messing" with driver
what do i do from here... is there any live chat for it maybe? or i can call someone?
Well, do you have the real TWRP or Safestrap? Can you enter recovery?
well, only thing i get it's blue screen and "Teamwin" and after like 3-4 second restarts and go on looping same "Teamwin"
oreal crast said:
well, only thing i get it's blue screen and "Teamwin" and after like 3-4 second restarts and go on looping same "Teamwin"
Click to expand...
Click to collapse
Still haven't answered Safestrap or native TWRP query (you should know). Do this:
- long press power until device shuts off
- restart device with power button (only)
- detail the 1st, 2nd and 3rd screens you see
If you do not have native TWRP (with unlocked bootloader) you likely borked your device with the installation of CM 12.1. Generally not repairable.
oreal crast said:
well, only thing i get it's blue screen and "Teamwin" and after like 3-4 second restarts and go on looping same "Teamwin"
Click to expand...
Click to collapse
Ok, that should be the real TWRP, the Safestrap screen looks different.
This could mean you've TWRP installed, but the bootloader is locked. So I'd suggest to unlock the bootloader, you can't screw up anything, and can try this nice tool.
Cl4ncy said:
Ok, that should be the real TWRP, the Safestrap screen looks different.
This could mean you've TWRP installed, but the bootloader is locked. So I'd suggest to unlock the bootloader, you can't screw up anything, and can try this nice tool.
Click to expand...
Click to collapse
To check if your bootloader is unlocked (assumes you previously unlocked and still have the prerequisite software installed on host):
- power down device
- press vol-down + power; release both keys when "[fastboot]" prompt appears
- tether your device
- open a command prompt (assuming Windows)
- issue command: fastboot -i 0x1949 oem idme ?
- you will only get a response if bootloader is unlocked
If the (Windows) host displays "<waiting for device>":
- press <ctrl>-c to break wait
- start device manager (different window)
- located device with explanation mark (likely under "portable devices")
- right click -> update driver software -> browse my computer... -> Let me pick...
- select driver from list (ideally one that contains the words 'fastboot'); might have to try a few
- reissue above command
Bit of a PiTA ... might be easier to simply try the one click unlock tool as there is no additional risk to your device. It will either work or not.
I guess i'll check it only next week. Leaving all this things for the weekend.
I'll keep you updated guys.
Anyway, i really appreciate your help! Thank you so much for helping
same problem
Good evening, I am very interested by the article, in fact, I currently have the same problem and I began to be very sad. all stages cited by oreal Crast are similar to the ones I tested. when I enter the command prompt 'adb devices' I get the number of my tablet and status RECOVERY.
'adb shell' gives me "~ # ← [6n"
I even re installs the uboot, boot.img and TWRP freedom by following the steps in one tech site
but at reboot, by entering the command "fastboot oem recovery 0x1949 -i 'my tablet again has a boot loop on teamwin.
i want to resolve very fast this problem because i need my tablet urgently:crying:
ps: I don't think that I can meet these problems because after having bought my tablet to a friend (the tablet possessed CyanogenMod 11 android 5.0.1 I think) I did a factory reset . it is from this manipulation on my tablet reboot teamwin.
thank you for your helping
stephio said:
Good evening, I am very interested by the article, in fact, I currently have the same problem and I began to be very sad. all stages cited by oreal Crast are similar to the ones I tested. when I enter the command prompt 'adb devices' I get the number of my tablet and status RECOVERY.
'adb shell' gives me "~ # ← [6n"
I even re installs the uboot, boot.img and TWRP freedom by following the steps in one tech site
but at reboot, by entering the command "fastboot oem recovery 0x1949 -i 'my tablet again has a boot loop on teamwin.
i want to resolve very fast this problem because i need my tablet urgently:crying:
ps: I don't think that I can meet these problems because after having bought my tablet to a friend (the tablet possessed CyanogenMod 11 android 5.0.1 I think) I did a factory reset . it is from this manipulation on my tablet reboot teamwin.
thank you for your helping
Click to expand...
Click to collapse
I assume you have an unlocked bootloader and were running 'native' twrp (not Safestrap) when the problem occured. Unfortunately, there is no known 'quick fix' recovery from this failure scenario (boot looping on teamwin spash screen) as you have tried to reinstall twrp without success. Someone very talented with android might be able to unravel the problem. Best guess (and it is only a guess) is the recovery partition became damaged to such an extent it the contents can not be replaced without performing a low level format/reset of your device.
Some curiosities:
- Android 5.0.1 and CM11? (impossible combination)
- TWRP freedom? (not supported on HDX)
Are your certain your device is a HDX and not some other model?
same problem
for android version I listed above, I do not know exactly because I have used my tablet a day without really paying attention to it but I think I saw the android 5.0.1 but regarding cyanogen, I just imagined it based on readings on the web.
for this is my tablet AMAZON KINDLE FIRE with a HD 8.9 and the TWRP I recently flashed, I got through the website wikicyanogenmod in the "on how to install cyanogen hd amazon kindle 8.9.
I can not post a link because I am new to the forum so I can only quote the sites where I could download my data.
* I really count on your help to all.
stephio said:
for android version I listed above, I do not know exactly because I have used my tablet a day without really paying attention to it but I think I saw the android 5.0.1 but regarding cyanogen, I just imagined it based on readings on the web.
for this is my tablet AMAZON KINDLE FIRE with a HD 8.9 and the TWRP I recently flashed, I got through the website wikicyanogenmod in the "on how to install cyanogen hd amazon kindle 8.9.
I can not post a link because I am new to the forum so I can only quote the sites where I could download my data.
* I really count on your help to all.
Click to expand...
Click to collapse
You still haven't made it clear whether you have an HD or HDX model.
You're on the HDX forum, but you're talking about documentation on the CyanogenMod wiki for the HD 8.9.
The problem likely stems from the fact that you flashed a recovery for the wrong device.
same problem
EncryptedCurse said:
You still haven't made it clear whether you have an HD or HDX model.
You're on the HDX forum, but you're talking about documentation on the CyanogenMod wiki for the HD 8.9.
The problem likely stems from the fact that you flashed a recovery for the wrong device.
Click to expand...
Click to collapse
I searched the web and I have definitely amazon kindle fire HD 8.9 because even his appearance differs from the HDX 8.9.
no I do not really think the problem comes from the data flash HD 8.9 (wikicyanogenmod) because I flashed the data after doing a factory reset without actually knowing that this would pose a problem with amazon tablets.
the tablet was working well but I was unable to connect to the wifi. I thought it would be nice to change rom and install a suitable and stable rom for my tablet, but my operation I was surprised because I had never heard of this kind of problems caused by an factory reset
I have searched a lot on google and xda and havn't found an answer to my issue. Either I'm searching for the wrong thing or I have a very unique problem.
My basic problem is on two Nabi 2's I can't access the bootloader in order to be able to fastboot TWRP (or any other recovery). It just perpetually hangs.
Both tablets boot just fine. Both tablets are on 1.9.37. Both tablets can be factory wiped via the stock recovery.
Both tablets were rooted via TWRP 2.3.3.0 a few years ago in order to install gapps. I wanted to be able to upgrade the tablets to JB when it came out so I used Nabilablite to "return to stock". I followed all of the prompts and it appeared as though everything worked as desired. I downloaded the OTA update told it to install and never looked at the version again...I just assumed it installed. Handed the tablets back to the kids and everyone was happy. Apparently all I did was flash the stock recovery because they are still rooted and have gapps after several factory resets.
Now (a year later) I have realized I was a dufas and didn't actually effect the change I wanted.
If I hold Vol+ & Pwr buttons it loads to the recovery/boot menu with "boot normally" "fastboot protocol" "recovery kernal" and "forced recovery". If I boot normal, the tablet works fine but I can't update via OTA.
If I choose fastboot protocol it just hangs...for ever...HOW DO I FIX THIS!?!?!
If I choose recovery kernal it loads the stock recovery but still wont install any update OTA or otherwise, even from the sd card.
If I choose forced recovery nothing happens, it also appears to just hang.
If I hold Vol- & Pwr button the nabi logo flashes then the device turns off.
If I hold Vol+ & Vol- & Pwr buttons it appears to be the same as just Vol+ & Pwr.
With the tablet on and fully booted I can see it via ADB. I tried using the adb restart bootloader. The tablet reboots but then just hangs never actually loading the boot loader...
I found http://forum.xda-developers.com/showthread.php?t=2587543. But aicjofs mentions seeing a bootloader issue once before.
Usually when it hangs at the Nabi logo it means you don't have the USB cable plugged in or that the fastboot driver is not installed.(Check device manager and see if fastboot driver is installed/no exclimation point). If that's not the issue then it's the bootloader which I have only seen one person have that issue. Depending on which OTA's you have ran there was an update to a Jellybean bootloader so it's possible. That can be fixed with nvflash or placing the bootloader blob in the staging partition.
Also you can always get recovery back without fastboot in Android by dd'ing the recovery over.
For example if the recovery image is on the internal SD
dd if=/data/media/recovery.img of=/dev/block/platform/sdhci-tegra.3/by-name/SOS
Click to expand...
Click to collapse
I have NO idea what dd'ing the recover over is...
Thank you for any help fixing this.
P.S. I have a 3rd tablet that I also used TWRP 2.3.3.0 on to root and install gapps with. I did NOT use nabilablite on that tablet to return to stock. Yesturday I used fastboot to flash TWRP 2.6(something) to flash a JB OTA update which worked fine. It was also able to download and install every other OTA update all the way to the most recent KK with no problems...
najman9 said:
I have searched a lot on google and xda and havn't found an answer to my issue. Either I'm searching for the wrong thing or I have a very unique problem.
My basic problem is on two Nabi 2's I can't access the bootloader in order to be able to fastboot TWRP (or any other recovery). It just perpetually hangs.
Both tablets boot just fine. Both tablets are on 1.9.37. Both tablets can be factory wiped via the stock recovery.
Both tablets were rooted via TWRP 2.3.3.0 a few years ago in order to install gapps. I wanted to be able to upgrade the tablets to JB when it came out so I used Nabilablite to "return to stock". I followed all of the prompts and it appeared as though everything worked as desired. I downloaded the OTA update told it to install and never looked at the version again...I just assumed it installed. Handed the tablets back to the kids and everyone was happy. Apparently all I did was flash the stock recovery because they are still rooted and have gapps after several factory resets.
Now (a year later) I have realized I was a dufas and didn't actually effect the change I wanted.
If I hold Vol+ & Pwr buttons it loads to the recovery/boot menu with "boot normally" "fastboot protocol" "recovery kernal" and "forced recovery". If I boot normal, the tablet works fine but I can't update via OTA.
If I choose fastboot protocol it just hangs...for ever...HOW DO I FIX THIS!?!?!
If I choose recovery kernal it loads the stock recovery but still wont install any update OTA or otherwise, even from the sd card.
If I choose forced recovery nothing happens, it also appears to just hang.
If I hold Vol- & Pwr button the nabi logo flashes then the device turns off.
If I hold Vol+ & Vol- & Pwr buttons it appears to be the same as just Vol+ & Pwr.
With the tablet on and fully booted I can see it via ADB. I tried using the adb restart bootloader. The tablet reboots but then just hangs never actually loading the boot loader...
I found http://forum.xda-developers.com/showthread.php?t=2587543. But aicjofs mentions seeing a bootloader issue once before.
I have NO idea what dd'ing the recover over is...
Thank you for any help fixing this.
P.S. I have a 3rd tablet that I also used TWRP 2.3.3.0 on to root and install gapps with. I did NOT use nabilablite on that tablet to return to stock. Yesturday I used fastboot to flash TWRP 2.6(something) to flash a JB OTA update which worked fine. It was also able to download and install every other OTA update all the way to the most recent KK with no problems...
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EDIT: OOOPPS. I didn't see this was in the XDA Assist section. I'm not suppose to answer questions(I was just searching for Nabi questions and didn't notice this was XDA assist), dedicated XDAers just point you in the right direction in this section. Please ask the question again in the Nabi2 section and I'l come help you. http://forum.xda-developers.com/nabi-2
This might help answer some questions http://forum.xda-developers.com/nabi-2/general/nabi-information-t3229119
If it just hangs at fastboot protocol then the USB connection isn't good or fastboot driver isn't installed most of the time. Can you verify fastboot shows up in device manager?(I know the 3rd tabet worked OK) .
Nabilabite doesn't do anything that should change the bootloader, and fastboot should still work as it did before.
dd'ing recovery over means that you use the root access you have in Android to flash the recovery partition instead of using fastboot. IT's just another way of getting the TWRP recovery on the tablet.
The stock recovery won't install the OTA because when you added Gapps it changed some fies and the OTA sees those files as invalid and will fail.
Forced recovery always looks blank screen. It's waiting for you to give it a bootloader to run(beyond the scope here).
You should be able to get back on track once you have TWRP loaded. It's one of 3 things. Bad USB connection, fastboot driver not installed right, bootloader damage. Check the first 2 issues despite the fact the 3rd tablet had no such problems.
One of the XDA smart guys fixed my error of posting this in the wrong section.
I'm running Windows 7 Ultimate and have installed and re-installed the drivers several times. When the tablet's are fully booted ADB has a good connection and sucessfully sends the command to reboot. So I don't believe there is a driver or USB cable error...
When the tablets hang on the fastboot protocol my computer makes the usb connecting noise but fails to install the drivers...
When I hit forced recovery I hear the unrecognized USB device sound...
These two things make me think I don't have the proper drivers installed...but I don't understand how the driver's work when the tablet is booted but not when trying to access the boot loader.
It appears as though I'm going to have to try the dd method if you are able to point me in that direction please.
EDIT: Now I'm thinking I really DON'T have the fastboot drivers installed. I just plugged the 2nd tablet that hands on the fastboot menu and fastboot failed. I also booted the tablet completly, the adb driver's installed correctly but the fastboot driver's did not...I have installed the 64 bit driver's included with nabilablite. I can't find any actual other downloads. The 15 second ADB installer didn't change anything...
najman9 said:
One of the XDA smart guys fixed my error of posting this in the wrong section.
I'm running Windows 7 Ultimate and have installed and re-installed the drivers several times. When the tablet's are fully booted ADB has a good connection and sucessfully sends the command to reboot. So I don't believe there is a driver or USB cable error...
When the tablets hang on the fastboot protocol my computer makes the usb connecting noise but fails to install the drivers...
When I hit forced recovery I hear the unrecognized USB device sound...
These two things make me think I don't have the proper drivers installed...but I don't understand how the driver's work when the tablet is booted but not when trying to access the boot loader.
It appears as though I'm going to have to try the dd method if you are able to point me in that direction please.
EDIT: Now I'm thinking I really DON'T have the fastboot drivers installed. I just plugged the 2nd tablet that hands on the fastboot menu and fastboot failed. I also booted the tablet completly, the adb driver's installed correctly but the fastboot driver's did not...I have installed the 64 bit driver's included with nabilablite. I can't find any actual other downloads. The 15 second ADB installer didn't change anything...
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Click to collapse
Uninstall those nablablite and try this one. http://forum.xda-developers.com/showpost.php?p=62826514&postcount=2639
Or look at the other options in section 4 here http://forum.xda-developers.com/nabi-2/general/nabi-information-t3229119