Teclast M40 How to unlock bootloader?
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@AllexBast : Hi mate, everything is working great for me because I found a working A10 GSI. The only issue is no sound when I connect my Bluetooth headset.
In this thread https://forum.xda-developers.com/t/...2dp-aptx-in-any-gsi-rom.3950938/post-85932065, you have a solution for this issue but where is my stock firmware bluetooth libs please ? How can I extract them ?
Thank you in advance for your help
In this thread https://forum.xda-developers.com/t/...2dp-aptx-in-any-gsi-rom.3950938/post-85932065, you have a solution for this issue but where is my stock firmware bluetooth libs please ? How can I extract them ?
Thank you in advance for your help
They conflict with GPS. Do not turn on GPS@AllexBast : Hi mate, everything is working great for me because I found a working A10 GSI. The only issue is no sound when I connect my Bluetooth headset.
In this thread https://forum.xda-developers.com/t/...2dp-aptx-in-any-gsi-rom.3950938/post-85932065, you have a solution for this issue but where is my stock firmware bluetooth libs please ? How can I extract them ?
Thank you in advance for your help
After replacing files, you need to restart the tablet
Sorry but there is still a problem
. I restarted the tablet, I opened a video file but there was no sound in bluetooth. I tried several players and it's the same problem. To listen again in bluetooth, I have to open the video with the Google Videos player, click on the 3 dots at the top during playback, activate the speaker and then deactivate it and the sound works again in bluetooth. Do you have any idea of this issue ?Perhaps your firmware is different from iPlay40 firmware, which is why this is the case. The iPlay40 comes with headphones with a tipe-c wire, they do not work on gsi. You need to contact the developer gsi rom, indicate your problem and give a log file that can be done using the utilitySorry but there is still a problem
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 ?
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 ?
Generic System Image (GSI) list · phhusson/treble_experimentations Wiki
Notes about tinkering with Android Project Treble. Contribute to phhusson/treble_experimentations development by creating an account on GitHub.
github.com
Project Treble
The Android 8.0 release includes Project Treble, a major re-architect of the Android OS framework designed to make it easier, faster, and less costly for manufacturers to update devices to a new version of Android. Treble is for all new devices launching with Android 8.0 and beyond.
forum.xda-developers.com
@AllexBast
Do you think I can use your tool also for the MaxPad I11?
It also shares the UNISOC Tiger T618 like the Alldocube/Teclast.
EEA Fimware Android-11 can be downloaded with code "m3t1"
My priority is to boot Magisk, not TWRP.
Bootloader is unlocked. But last (many) tries I'm always stuck in a bootloop after flashing patched Magisk image, because of verified-boot, wrong vbmeta or something like that.
Can you help please?
Do you think I can use your tool also for the MaxPad I11?
It also shares the UNISOC Tiger T618 like the Alldocube/Teclast.
EEA Fimware Android-11 can be downloaded with code "m3t1"
My priority is to boot Magisk, not TWRP.
Bootloader is unlocked. But last (many) tries I'm always stuck in a bootloop after flashing patched Magisk image, because of verified-boot, wrong vbmeta or something like that.
Can you help please?
Theoretically it is possible. But I only dealt with android 10. Need vendor.img and boot.img
Last edited:
The tool didn't work. But I think this one works in combination with Ubuntu:
forum.xda-developers.com
I attach a screenshot of all extracted files. The "_b" are all empty.
Also the boot.img and vendor_a.img.
[TOOL] imjtool - Unpack and extract a variety of OTA images from various vendors
Hello All, My Imjtool is now at version 1.6 , supporting MediaTek images, improving QCom FBPK (SD845 and onwards ".img"), DTBO (Device tree blob overlay) slicing, super.img (liblp logical partitions) and block based update images...
forum.xda-developers.com
I attach a screenshot of all extracted files. The "_b" are all empty.
Also the boot.img and vendor_a.img.
Attachments
Try to flashThe tool didn't work. But I think this one works in combination with Ubuntu:
[TOOL] imjtool - Unpack and extract a variety of OTA images from various vendors
Hello All, My Imjtool is now at version 1.6 , supporting MediaTek images, improving QCom FBPK (SD845 and onwards ".img"), DTBO (Device tree blob overlay) slicing, super.img (liblp logical partitions) and block based update images...
I attach a screenshot of all extracted files. The "_b" are all empty.
Also the boot.img and vendor_a.img.
It works!
Thank you very, very much. It's really appreciated.
Two short notes:
1. After installing the Magisk app I had to select Install, Direct Install and Reboot. Before the installation of scripts/modules failed.
2. Reboot into recovery starts the normal recovery, no TWRP. But no drama for me, as root/Magisk is important.
Big thank you.
Thank you very, very much. It's really appreciated.
Two short notes:
1. After installing the Magisk app I had to select Install, Direct Install and Reboot. Before the installation of scripts/modules failed.
2. Reboot into recovery starts the normal recovery, no TWRP. But no drama for me, as root/Magisk is important.
Big thank you.
No, all good.
I'm very happy to get Magisk back working.
Many thanks for your patience and your help.
I hope other users with an UNISOC device will find this thread and the solution to get Magisk. It is/was a big issue the last months.
I'm very happy to get Magisk back working.
Many thanks for your patience and your help.
I hope other users with an UNISOC device will find this thread and the solution to get Magisk. It is/was a big issue the last months.
Found comments Phhusson https://github.com/phhusson/treble_experimentations/issues/1939Sorry but there is still a problem
Hi @AllexBast , I have a question please : I would like to try other GSI images and I'm afraid to be stuck with the boot logo. How can I restart in TWRP please ?
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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
