Did you try disable a2dp hardware offload in developer options? that is a common cure for no sound over bt in gsi roms.Thank you for your answer.
Just to know : do all GSI roms have this bluetooth problem ? And can you tell me where I can find and download the latest GSI roms please ?
Teclast M40 How to unlock bootloader?
- Thread starter AnKHqz
- Start date
has anyone unlocked the bootloader for the unisoc t310 alldocube t803? i use the command
./fastboot flashing unlock_bootloader signature.bin with my own token and it says unlock_message unlocking bootloader FAILED (remote: unlock bootloader fail)
./fastboot flashing unlock_bootloader signature.bin with my own token and it says unlock_message unlocking bootloader FAILED (remote: unlock bootloader fail)
My thanks also for the maxpad i11 root! Works perfectly, even when flashed over the v1.15 OTA fw upgrade (the other way around does not work, as flashing the root will kill OTA capability).
Could it also be possible that you make a variant where boot.img is patched with magisk from the canary channel instead of the usual v23? That way it may be possible to boot also A12 GSI roms (with root), because A12 wont boot with these patched images (they do boot however with the stock boot.img).
You yourself can patch boot.img on another tablet or phone and flash through the bootloader
It also needs to be signed after patching, right?
Also, does vbmeta not need to be modified too?
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avb disabled zero vbmeta, just flash the patched boot, you don't need to sign anything
Is this how you created the zero vbmeta?
Teclast M40 Disable dm-verity
I'd like to share the method I find to disable dm-verity. The method has been discussed on Hovatek, but I find it could be done even easier. 1. Make a blank but signed vbmeta image avbtool make_vbmeta_image --key rsa4096_vbmeta.pem --algorithm...
forum.xda-developers.com
Yes, this is a zero vbmeta. But it didn't work on an encrypted disk.Is this how you created the zero vbmeta?
Teclast M40 Disable dm-verity
I'd like to share the method I find to disable dm-verity. The method has been discussed on Hovatek, but I find it could be done even easier. 1. Make a blank but signed vbmeta image avbtool make_vbmeta_image --key rsa4096_vbmeta.pem --algorithm...
Try reinstalling magisk and patching boot.img
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I could actually set the update channel to beta, and do an in-app upgrade, and it rebooted OK with magisk v24.
Unfortunatelly though, A12 still wont boot, only with stock boot / vbmeta / vendor.
Sadly it is not working : ( It will reboot into android after flashing, but if I try to adb reboot fastboot / recovery, it will lock up on reboot, and stays that way, need to reflash boot partition.
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3If you suceeded to runlock bootloader, You can replace stock system to gsi system. You need to prepare linux PC (or live usb) and vbmeta.img (included in stock rom).
Generic System Images | Android Open Source Project
source.android.com
When you flash, you should use linux PC (Windows pc won't recognize fastbootd mode) and android SDK's adb/fastboot (do not use apt-get install adb/fastboot.).
Download from here -> https://developer.android.com/studio/index.html#downloads
If you want to repalce to Gapps included rom, you need to delete product partiton
> ./fastboot delete-logical-partition product
I tried Android 11 GSI, but boot-looped in OS. Android 10 GSI rom works fine and less error happens.3
Thats it!! Thanks a lot.
The ShapeShift-OS to Havoc part works also on my N9H1 to flash from Stock-Rom to CrDroid with root.
Here's my way to get rooted CrDroid starting from new flashed Stockfirmware M40(N9H1)_Android 10.0_V1.03_0D24 without GAPPs:
Rooting des M40 N9H1 if all Files created
Recomended:
OEM unlocked
USB debugging activited
Bootloader unlocked (Hovatec modified fastboot for linux)
modified Files (from Stockrom M40(N9H1)_Android 10.0_EEA_V1.00_SZ):
vbmeta-sign.img -> vbmeta—sign-custom.img
boot.img -> magisk_patched_boot_repacked.img
Save these files!! you don’t have create it new since Android 10 Firmware in use
Create Working Dir and put all files into it, includig adb/fastboot. Open terminal in this folder
1. for rooting 1.a and 1.b use always first:
./adb devices
./adb reboot-bootloader
sudo -i
sudo usermod -aG plugdev root
cd /Rooting_Workfolder/
./fastboot reboot fastboot
1.a Rooting Stock-ROM:
./fastboot --disable-verification flash vbmeta vbmeta-sign-custom.img
./fastboot flash:raw boot magisk_patched_boot_repacked.img
./fastboot reboot
that’s it!!!
1.b Rooting Custom Image (CrDroid) without GAPPS*:
Install stock rom without gapps M40(N9H1)_Android 10.0_V1.03_0D24
(no delete-logical-partition product)
root it with saved files
./fastboot erase system
./fastboot flash system CrDr-system.img
./fastboot flash:raw boot magisk_patched_boot_repacked.img
-> recovery -> wipe data/factory reset -> return fastbootd
./fastboot reboot
that’s it!!!
Thanks a lot once more to jngiag
Joerg3This is how I install. Please fine tune it if needed.
Flashing Gsi Image without root
-------------------------------
1) Bootloader unlocked.
2) Download "platform-tools_r30.0.5-linux" and extracted it in Ubuntu & named folder as "adb" (or any name)
3) Copy gsi rom (ShapeShiftOS-1.2.1_arm64-ab_gapps.img) & rename it as "system.img" (or any name) to adb folder
4) Copy vbmeta-sign.img to "adb" folder
5) Enable Usb Debugging in Developer option (in stock rom)
6) In Ubuntu
# ./adb devices -> Enable authorisation in tablet
# ./adb reboot-bootloader (boot into fastboot, not fastbootd)
# ./fastboot devices
# ./fastboot reboot fastboot (this will boot into fastbootd mode)
-> Enter Recovery (tablet) -> wipe data/factory reset (format data as necessary)
(keep stock rom setting if not format - works but not the best)
-> Enter fastboot
# ./fastboot --disable-verity --disable-verification flash vbmeta vbmeta-sign.img
# ./fastboot erase system
# ./fastboot delete-logical-partition product (for stock rom with gapp only)
# ./fastboot flash system system.img
# ./fastboot reboot
# = linux command prompt3Install gsi rom (ShapeShift-OS) with root
-----------------------------------------
1) Stock rom installed with root (magisk)
2) Go to fastbootd (don't wipe data/factory reset in recovery)
# ./fastboot erase system
# ./fastboot delete-logical-partition product (for stock rom with gapp only)
# ./fastboot flash system ShapeShift-OS.img
# ./fastboot --disable-verification flash vbmeta vbmeta-sign-custom.img
(skip this if booted with unrooted boot.img earlier)
# ./fastboot flash boot boot_magisk.img ("boot_magisk.img" created in 2b)
# ./fastboot reboot
3) Go to fastbootd -> recovery -> wipe data/factory rest -> reboot
4) In ShapeShift-OS -> Uninstall magisk manager -> install app-debug.apk
(magisk manager canary) -> Additional steps -> Done
vbmeta-sign-custom.img and boot_magisk.img to be prepared separately following
guides provided on Hovatek website.2
I succeeded in unlocking bootloader of M40 by hovatek's method, but didn't try rooting it.(https://forum.hovatek.com/thread-32674.html)
Here's M40 stock rom. In case you need to recover it...
https://1drv.ms/u/s!AtprAlErUyChn0V0socBsjcnolp8?e=DkJfUa
