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[Q] Boot Loop After Flash

When I got my G tablet yesterday and rooted/flashed to 2.2 Lite, I did it using my G1's SD, but since then I backed up my SD to what I had it on my G1. My question is, can the G tablet naturally boot from an SD card(micro) as long as its named update.zip? I mean so I can do the flash again or is it perma bricked? If it is perma bricked, should I return it to store and start all over with a dedicated SD card?
Thanks!

necromonger89 said:
When I got my G tablet yesterday and rooted/flashed to 2.2 Lite, I did it using my G1's SD, but since then I backed up my SD to what I had it on my G1. My question is, can the G tablet naturally boot from an SD card(micro) as long as its named update.zip? I mean so I can do the flash again or is it perma bricked? If it is perma bricked, should I return it to store and start all over with a dedicated SD card?
Thanks!
Click to expand...
Click to collapse
Necro,
This tablet is 99% unbrickable (I would say 100% because I haven't head of one bricked yet but nothing is impossible). you just need to boot into APX mode and reflash stock firmware
how to get into APX mode can be found here
http://wiki.tegratab.com/index.php/Nvflash_FAQ
you are going to need to download the complete NVflash restore file
which can be found here: http://forum.tegratab.com/viewtopic.php?f=13&t=18

dsf767 said:
Necro,
This tablet is 99% unbrickable (I would say 100% because I haven't head of one bricked yet but nothing is impossible). you just need to boot into APX mode and reflash stock firmware
how to get into APX mode can be found here
http://wiki.tegratab.com/index.php/Nvflash_FAQ
you are going to need to download the complete NVflash restore file
which can be found here: http://forum.tegratab.com/viewtopic.php?f=13&t=18
Click to expand...
Click to collapse
The download link for the SDK is broken or old. Is there another place I can download it. Stupid google keeps bringing me the PDFs for Nvidia. Nevermind about the SDK, found it on their site. What about the original ROM/IMG? That link is also broken.
Is there a better guide. I'm getting a headache from all the files the SDK dumped onto my computer. Can someone show me a noob proof version of how to do this?
I only undertand the APX mode on the G Tablet. Other than that I cannot get windows to recognize the device even after installing the SDK. Where are the drivers for the APX?

There are instructions on the main post for TNT-Lite for what to do if you get into the boot loop. I ended up having to get to the step where I repartitioned the internal flash and re imaged.

You can avoid the SDK and driver issues and only use the computer to put some files on the SD card:
Easiest way to fix for me was (I had same issue problem with 2.0):
1. Download "Clockwork .8" (links at XDA)
2. Unzip the recovery file and update.zip to root of a micro sd
3. Change the recovery folder's command file to "microsd2" & save it
4. Put the card in the Gtablet
6. Interrupt the boot loop by pressing power and volume up at same time
7. Clockwork should install
8. Power down and restart the G tablet
9. Download TnT Lite 2.20
10. Repeat 2 and 3, but this time extract the update.zip file from TnT 2.20 and copy over the update.zip already in the root directory. YOU WILL NOT NEED A RECOVERY FILE FOR THIS METHOD.
11. Delete the recovery file in the root directory
12. Power down
13. Restart by pressing power and volume up
14. Should be in Clockwork
15. You want to clear both cache and data (two options on main screen)
16. After clearing both, choose install update.zip.
17. The next screen will show the update.zip. Go to its row and choose it by pressing home button
You should auto reboot and be set. You can then install the Folio Flash apk and install Titanium so you can do the market fix.
This is process is what saved me, at least.

rushless said:
You can avoid the SDK and driver issues and only use the computer to put some files on the SD card:
Easiest way to fix for me was (I had same issue problem with 2.0):
1. Download "Clockwork .8" (links at XDA)
2. Unzip the recovery file and update.zip to root of a micro sd
3. Change the recovery folder's command file to "microsd2" & save it
4. Put the card in the Gtablet
6. Interrupt the boot loop by pressing power and volume up at same time
7. Clockwork should install
8. Power down and restart the G tablet
9. Download TnT Lite 2.20
10. Repeat 2 and 3, but this time extract the update.zip file from TnT 2.20 and copy over the update.zip already in the root directory. YOU WILL NOT NEED A RECOVERY FILE FOR THIS METHOD.
11. Delete the recovery file in the root directory
12. Power down
13. Restart by pressing power and volume up
14. Should be in Clockwork
15. You want to clear both cache and data (two options on main screen)
16. After clearing both, choose install update.zip.
17. The next screen will show the update.zip. Go to its row and choose it by pressing home button
You should auto reboot and be set. You can then install the Folio Flash apk and install Titanium so you can do the market fix.
This is process is what saved me, at least.
Click to expand...
Click to collapse
Did not work... I might go and return it tomorrow. I even tried flashing to original firmware and nothing.

I got stuck in an unrecoverable boot loop as well. I tried to install TNT Lite 2.2, got a boot loop.
Tried to install TNT Lite 2.2, 2.2.1, 2.3 from microsd (yes changed the line to SDCARD2), always got the giant exclamation mark.
Tried to install the vanilla restore and stock TNT from here http://forum.xda-developers.com/showpost.php?p=9439414&postcount=7 still exclamation mark.
Tried to install Clockwork Mod, still exclamation mark.
EDIT: Finally got out of my bootloop by flashing the ViewSonic G-Tablet Restore file from DroidPirate
http://www.droidpirate.com/download/click.php?id=1777
http://droidpirate.com/category/ablets/viewsonic-gtablet/
Its the only one that worked.

Honor 6 Bricked after update to 5.1.1

Hello Guys,
after the update to 5.1.1 I bricked my Honor 6. I tried to unbrick it with the multi tool but it dont works...
I can access fastboot and the bootloader is unlocked. Can I rescue my phone?
Daranto

Try to unlock the bootloader http://forum.xda-developers.com/showpost.php?p=57271243&postcount=5 with this and tell me if you succeeded

cheptii said:
Try to unlock the bootloader http://forum.xda-developers.com/showpost.php?p=57271243&postcount=5 with this and tell me if you succeeded
Click to expand...
Click to collapse
My Bootloader is unlocked? Look at my first post.
Daranto

Great then you can unbrick it easily , http://forum.xda-developers.com/honor-6/general/revert-h60-l04-emui-3-1-to-emui-3-0-t3142268 follow the steps in this post

cheptii said:
Great then you can unbrick it easily , http://forum.xda-developers.com/honor-6/general/revert-h60-l04-emui-3-1-to-emui-3-0-t3142268 follow the steps in this post
Click to expand...
Click to collapse
Hey,
I would not create a new thread if I not tried everything that is posted in the Honor 6 forum. Nothing worked.
I tried to unbrick over multi tool and I tried to do the steps above. No luck.
If someone can help me that would be nice.
Daranto

Which version do you have ? H60- .. ?

H60-L04

1- Download the multi-tool & Huawei update extractor
2- Download the B370 & B309 Downgrade packet from http://www.hihonor.com/fr/pages/support#?view=downloads
3- Open Huawei update extractor and extract BOOT& CUST & RECOVERY & SYSTEM and copy them to the Folder 'Unbrick' in the multi-tool folder
4- Open the multi-tool and and go to the fastboot in your phone , then follow the steps in multi-tool for the unbrick (-6 Unbrick)
5-When its done , dont turn off the phone download BOOT & RECOVERY from this link LINK (hxxps://drive.google.com/file/d/0BzujZI5OEVIRWWxyLXNjRGNWb3c/view?usp=sharing
replace xx with tt)
6- Extract the files in a folder then Shift + right click and open cmd in the folder then Type ' fastboot flash boot boot.img' after that type fastboot flash recovery recovery.img
7- Turn off the phone and PUT B309 UPDATE.APP in dload folder in SD CARD
8- BOOT device with 3buttons UNPLUGGED from USB and SD card UNMOUNTED , When you get installation screen MOUNT SD card As Far As Possible (sometimes it takes 3 or 4 tries to access the setup via the 3 buttons so be patient)
9- PUT B370 UPDATE.APP (Extract it again , the 1st one will be missing some data) dload folder in SD CARD and BOOT device with 3buttons UNPLUGGED from USB and SD card UNMOUNTED When you get installation screen MOUNT SD card As Far As Possible (sometimes it takes 3 or 4 tries to access the setup via the 3 buttons so be patient) (AGAIN)
and im sure that it works

[GUIDE][NOUGAT]How to go back from Custom Rom to EMUI

Here's a guide for how to go back from a Custom Rom (fe. RROS) back to EMUI. I went through the same process successfully.
IMPORTANT: This is ONLY for Nougat!! You can neither rollback from Project Treble Rom using this guide nor from any other Oreo Rom in the future.
1. Download the file for your device from the following thread:
https://forum.xda-developers.com/honor-9/development/firmware-huawei-honor-9-stf-l09-stock-t3696892 and unpack the rar file.
2. You'll get a dload folder. Copy the entire folder to the root of your SD card.
3. Power off your phone and boot it into dload (Volume down + Volume up + Power)
4. After it finished installing this first file, interrupt the startup and boot into recovery (hold Volume up + Power until it forcibly reboots).
5. Do a factory reset and wipe cache.
6. Remove the SD card from the phone and do the following steps on your PC (you can let the phone sit in Recovery while doing that):
6a. Go into /dload/ folder of the SD card and remove update.app.
6b. Go into the other folder in /dload/ and move its .app file into /dload/
6c. Rename this .app file into update.app
6d. Eject the SD card from your PC and insert it in your phone again.
7. Hold Volume down and Volume up while tapping Reboot.
8. It should start the second installation in dload mode, let it install, reboot and you're done
Thanks to 5261979 for providing the files! If this guide worked for you, please give a Thanks to their post too!

yz8_1337 said:
Hello, the downloadlinks from the linked thread are down, is there any other way to get the firmware files?
Click to expand...
Click to collapse
Download Firmware Finder for Huawei:
https://play.google.com/store/apps/details?id=com.teammt.gmanrainy.huaweifirmwarefinder
You should be able to get the files of any firmware. Probably you're even able to go back from an Oreo custom rom to EMUI 8 but I haven't tested that. However I don't recommend installing firmware files from a different Android version than the one of your current custom rom.
Edit: First file to install is the firmware, second is vendor (Nougat).
Doing it on Oreo, second step might not be necessary since it's Project Treble.
Also, as I said, I'm NOT sure if this works exactly in that way on Oreo.
Sent from my Honor 9 using XDA Labs

yz8_1337 said:
Okay, thanks alot for your kind response!
---------- Post added at 02:18 PM ---------- Previous post was at 02:07 PM ----------
One more question: the oldest version I can get using this firmware finder app is B160. In the thread you linked, B130 was mentioned. Does it make any difference when im on RROS 5.8.5 currently and want to go back?
Edit: I was searching firmwares for STF-L09S and not STF-L09 but I still wonder if it makes any difference which version I use for the dload method as long as its Nougat
Click to expand...
Click to collapse
It most likely won't make a difference which Nougat version you install. The only thing is that there are several versions where capacitive buttons and flashlight breaks when unlocking the bootloader or/and rooting it. Same with Oreo firmwares but for Oreo there is a fix.
And about the S version, I'm sorry I don't know the difference myself. :/ I actually just made this guide because I wanted to help others with my way of going back to Stock as I didn't find any guides specifically on that when I did it myself.
Sent from my Honor 9 using XDA Labs

_lucx_ said:
Here's a guide for how to go back from a Custom Rom (fe. RROS) back to EMUI. I went through the same process successfully.
IMPORTANT: This is ONLY for Nougat!! You can neither rollback from Project Treble Rom using this guide nor from any other Oreo Rom in the future.
1. Download the file for your device from the following thread:
https://forum.xda-developers.com/honor-9/development/firmware-huawei-honor-9-stf-l09-stock-t3696892 and unpack the rar file.
2. You'll get a dload folder. Copy the entire folder to the root of your SD card.
3. Power off your phone and boot it into dload (Volume down + Volume up + Power)
4. After it finished installing this first file, interrupt the startup and boot into recovery (hold Volume up + Power until it forcibly reboots).
5. Do a factory reset and wipe cache.
6. Remove the SD card from the phone and do the following steps on your PC (you can let the phone sit in Recovery while doing that):
6a. Go into /dload/ folder of the SD card and remove update.app.
6b. Go into the other folder in /dload/ and move its .app file into /dload/
6c. Rename this .app file into update.app
6d. Eject the SD card from your PC and insert it in your phone again.
7. Hold Volume down and Volume up while tapping Reboot.
8. It should start the second installation in dload mode, let it install, reboot and you're done
Thanks to 5261979 for providing the files! If this guide worked for you, please give a Thanks to their post too!
Click to expand...
Click to collapse
hello sir,
i have followed all the steps, tryed different update.app nothing, error cant install, just starting the emui rollback process it arrives 5% and stops. im stuck no os installed, just twrp 3.1.1.1. please help me
sincerely

xenini said:
hello sir,
i have followed all the steps, tryed different update.app nothing, error cant install, just starting the emui rollback process it arrives 5% and stops. im stuck no os installed, just twrp 3.1.1.1. please help me
sincerely
Click to expand...
Click to collapse
Which firmware were you previously on and which one did you try to install?
Sent from my Honor 9 using XDA Labs

Bricked my GR5 2017 (Honor 6x)

Hello,
I have BLL-L21C185 phone, i managed to unlock it and root it successfully. But i wanted to unroot it using this thread https://forum.xda-developers.com/honor-6x/how-to/how-to-to-stock-emui-5-0-flashing-twrp-t3679985 and failed now my phone have no os and can't flash twrp recovery, i tried dload method but flashing fail at 5% even after trying different builds. i still can get the phone to boot in fastboot but adb command are not working only fastboot command are. i really need your help
i was on this build before all this happened BLL-L21C185B379

Update: I managed to boot to twrp and restore since i made a twrp backup before attempting to unroot but my model number showing: generic_a15 and my bulid number is: NRDM90M test-keys instead of BLL-L21C185B379 and some apps are missing/not working.
i want to return full stock i'm really desperate plz help me

Kdachraf said:
Update: I managed to boot to twrp and restore since i made a twrp backup before attempting to unroot but my model number showing: generic_a15 and my bulid number is: NRDM90M test-keys instead of BLL-L21C185B379 and some apps are missing/not working.
i want to return full stock i'm really desperate plz help me
Click to expand...
Click to collapse
Flash the small data file of same version via twrp
If worked then good else flash oeminfo and then dload the same firmware, your build number will fix

shashank1320 said:
Flash the small data file of same version via twrp
If worked then good else flash oeminfo and then dload the same firmware, your build number will fix
Click to expand...
Click to collapse
i tried to flash the small data via twrp but with no success, i tried even dload method with no success it fail at 5%,
do i flash oeminfo via twrp?

Kdachraf said:
i tried to flash the small data via twrp but with no success, i tried even dload method with no success it fail at 5%,
do i flash oeminfo via twrp?
Click to expand...
Click to collapse
You need to flash rhe oeminfo via twrp and then dload the full srock firmware

shashank1320 said:
You need to flash rhe oeminfo via twrp and then dload the full srock firmware
Click to expand...
Click to collapse
tried flashing oeminfo via twrp with no success

Kdachraf said:
tried flashing oeminfo via twrp with no success
Click to expand...
Click to collapse
Did you flash firmware via dload post oeminfo file?

Yes but fail at 5% most app not work like camera call microphone and speaker don't work either

is it possible to rebrand the phone or anything just to get it working properly with twrp and fastboot access

Kdachraf said:
is it possible to rebrand the phone or anything just to get it working properly with twrp and fastboot access
Click to expand...
Click to collapse
Try booting to erecocery and see if it is able to download the firmware and reboot. If not, you can try debranding but if dload doesn't work there then tou will get stuck

shashank1320 said:
Try booting to erecocery and see if it is able to download the firmware and reboot. If not, you can try debranding but if dload doesn't work there then tou will get stuck
Click to expand...
Click to collapse
i retraced my steps back to this thread https://forum.xda-developers.com/hon...-twrp-t3679985 since i was not careful enough the first time, everything went smoothly but always stuck on dload at 5%
i'm able to boot to erecovery and stock recovery, tried downloading/ factory reset but with no success, should i use different build??

SOLVED i unbricked my GR5 2017 BLL-L21
SOLVED
I finally managed to unbrick my GR5 2017 (Honor 6x) BLL-L21 after i lost all hope
After countless attempts to unbrick the phone i managed to go back full stock with EMUI,
All i had to do is:
> Get a GOOD sd card 8gb at least, mine was SanDisk
> Full wipe/data format in twrp
> Turn off the phone
> Now go back to your pc and unzip the update.zip file that you downloaded (make sure to download the correct file depending on your model number)
> Create dload folder in the update folder
> Put UPDATE.APP file in dload folder
> Format sd card using exFAT
> Copy dload folder to the sd card
> Put sd card inside the phone and press volume up + volume down + power at the same time
> Wait until u see Huawei/ Honor logo and release all buttons
> Now the phone will detect the package and start updating
> After update is successful the phone will reboot
Here it gets a bit tricky for me, after reboot i had this message "your phone has failed verification and may not work properly", so this is what i did:
> Shut down phone and remove sd card
> Go back to your computer and unzip this file "update_full_BLL-L21_hw_meafnaf.zip" (make sure to download the correct file for your model)
> Now create a folder and rename it "dload" and move the UPDATE.APP file from the update_full_BLL-L21_hw_meafnaf inside the dload folder
> Format sd card using exFAT
> Copy dload folder to the sd card
> Put sd card inside phone and press volume up + volume down + power at the same time
> Wait until u see Huawei/ Honor logo and release all buttons
> Now the phone will detect the package and start updating
> After update is successful the phone will reboot
> Now phone will boot properly
> setup your phone and enjoy
This worked flawlessly for my GR5 2017 BLL-L21,

Kdachraf said:
SOLVED
I finally managed to unbrick my GR5 2017 (Honor 6x) BLL-L21 after i lost all hope
After countless attempts to unbrick the phone i managed to go back full stock with EMUI,
All i had to do is:
> Get a GOOD sd card 8gb at least, mine was SanDisk
> Full wipe/data format in twrp
> Turn off the phone
> Now go back to your pc and unzip the update.zip file that you downloaded (make sure to download the correct file depending on your model number)
> Create dload folder in the update folder
> Put UPDATE.APP file in dload folder
> Format sd card using exFAT
> Copy dload folder to the sd card
> Put sd card inside the phone and press volume up + volume down + power at the same time
> Wait until u see Huawei/ Honor logo and release all buttons
> Now the phone will detect the package and start updating
> After update is successful the phone will reboot
Here it gets a bit tricky for me, after reboot i had this message "your phone has failed verification and may not work properly", so this is what i did:
> Shut down phone and remove sd card
> Go back to your computer and unzip this file "update_full_BLL-L21_hw_meafnaf.zip" (make sure to download the correct file for your model)
> Now create a folder and rename it "dload" and move the UPDATE.APP file from the update_full_BLL-L21_hw_meafnaf inside the dload folder
> Format sd card using exFAT
> Copy dload folder to the sd card
> Put sd card inside phone and press volume up + volume down + power at the same time
> Wait until u see Huawei/ Honor logo and release all buttons
> Now the phone will detect the package and start updating
> After update is successful the phone will reboot
> Now phone will boot properly
> setup your phone and enjoy
This worked flawlessly for my GR5 2017 BLL-L21,
Click to expand...
Click to collapse
hi first thkx for your poste
i follow your steps and when rebooting go to bootloops how can i slove this
im bll-l21
i tried to flash this "update_data_full_BLL-L21_hw_meafnaf (1.01 Go)" after flashing the "update.app (3.31 Go) succes but steel in bootloops
for info i put all the files into "dload" it contain :
/data
/META-INF
update.app
please help me

rafade31 said:
hi first thkx for your poste
i follow your steps and when rebooting go to bootloops how can i slove this
im bll-l21
i tried to flash this "update_data_full_BLL-L21_hw_meafnaf (1.01 Go)" after flashing the "update.app (3.31 Go) succes but steel in bootloops
for info i put all the files into "dload" it contain :
/data
/META-INF
update.app
please help me
Click to expand...
Click to collapse
it SLOVED
it was just need a good Factory reset after the complite flash
thank you @Kdachraf

Honor 6x Hard Bricked

While trying to flash a GSI (AICP) on my Honor 6x, I accidentally wiped system and recovery 2 partition.
I was able to boot to fastboot, and somehow to TWRP. So I took the Nougat firmware, put it in Huawei Firmware Extraction utility, and there was an option to create a flashable zip.
I took this zip and flashed on the phone. This was FullOTA Update.APP that I had flashed from TWRP, and ever since, the phone is not turning on. Nope, Fastboot is also not working, neither is screen turning on.
I brought a one plus 6 for myself, as permanent driver, but I miss the Honor 6x.
I wanted to check if there is someone here who could tell me a way to fix this mess.

Looks like you posted in the wrong section. Anyways, download the Full OTA package, and try flashing it with DLOAD method:
1. Extract the Full OTA package
2. Copy the content (all files in the folder where the UPDATE.APP file is located) of the extracted zip in the "dload" folder on your phone's sd card
3. Put your SD Card back in the phone and hold volume up, volume down and power buttons all together.
4. Your phone will start and reboot once, keep the buttons down.
5. Firmware flashing will start: now you can stop pressing the buttons.
Let me know if this works!