[Development] How to root Unisoc | Spreadtrum Android 9; Case study: Teclast P80X
[Development] How to root Unisoc | Spreadtrum Android 9; Case study: Teclast P80X
(08-07-2020, 06:24 PM)shezan I'm using a device name: walton primo R6 MAX
Chipset: Unisoc SC9863A
Android: 9.0
Ram/Rom: 3/32
I tried to root my device so I signed my vbmeta with the help of a post from hovatek and I was successful. Then I ported my recovery.img from TWRP auto porter that support android 9 then I signed the ported recovery and flashed to my device via fastboot and spd research tool. Flashing with fastboot can't be open on recovery unless I'm on homescreen but as the post they say first to go on the recovery mode. And if I flash with spd research tool then I can Go simply recovery mode but It stuck on boot logo and do nothing else.
And then I flash recovery that is patched with magisk. I did the two method like before and I got just a bit different result than before. In the recovery mode I can just see "modem-int" written in a pinky red screen.
So if you can help me root my device I'll be very thankful to
(09-07-2020, 07:55 PM)bsheepdiy @stippler
" Use Reset pin + volume down (to power off), remove reset pin to put tablet into download mode."
How do you trigger reset pin ? Where is it located ? does it need to open the tablet ?
Thanks
(27-07-2020, 09:58 PM)bsheepdiy Hello,
I ve tried to patch boot.img and recovery.img using Magisk each time I get this error
python avbtool info_image --image magisk_patched.img
...
I think there was a modification on Magisk way of patching image, and it is not compatible with AVB python script ...
Thanks for your help
(08-07-2020, 04:23 PM)stippler Teclast P80XHow do I sign the system image?
Rooted (Power on boot up, no combo keys required).
Magisk Canary. Patch boot.img then recovery.img (extracted from firmware. Rename immediately after patching each file, magisk_boot.img, magisk_recovery.img).
Reboot after the first file is patched, had issues with sequential patching (random file size).
Create your private custom encryption key in Linux. Generate, then sign the new Vbmeta.img. Sign magisk_boot.img, magisk_recovery.img and system.img.
Spd tools will prevent flashing of the new files. Use ADB tools to enter your tablet in fastboot mode, then flash the signed custom Vbmeta file.
Hold button to power off. It will bootloop after this. Don't panic.
Use Reset pin + volume down (to power off), remove reset pin to put tablet into download mode.
Before that, get SPD Research tool ready, click play (select power off for when flashing is complete), deselect everything from firmware except fdl1-sign.bin, fdl2-sign.bin, recovery and system.
Browse for and select custom signed TWRP in the recovery entry and your custom signed system.img in the system entry. Flash.
Power on tablet with combo keys to boot into TWRP recovery (files on SD card). Miss it, you'll have to flash TWRP again.
Flash magisk_boot.img, magisk_recovery.img to their respective partitions.
TWRP > Reboot recovery or power off.
On booting up, root might not be properly installed. Update Magisk Canary.
Rooted.
It's worthwhile editing the audio_para file to adjust gain and eq values (big difference for heavier bass etc), before installing V4A or other. Not in the same league as a Teclast T8 on Viper, but it is very enjoyable when tweaked.
Is there a GUI for audio_para?
(10-08-2020, 12:14 PM)Abatoir Hey guys I'm having some issues here. I've rooted SPD Android 9 B4 following this exact tutorial, however this Blu Device running Android 9.0 seems to be particular.
My issue: after flashing signed magisk patched recovery IMG then disconnecting the battery while in fastboot. Every attempt I make to boot rooted recovery,boots the device into stock recovery. Is there any way around this?
(11-08-2020, 09:26 AM)X3non(10-08-2020, 12:14 PM)Abatoir Hey guys I'm having some issues here. I've rooted SPD Android 9 B4 following this exact tutorial, however this Blu Device running Android 9.0 seems to be particular.
My issue: after flashing signed magisk patched recovery IMG then disconnecting the battery while in fastboot. Every attempt I make to boot rooted recovery,boots the device into stock recovery. Is there any way around this?
stock recovery must be replacing the patched recovery. ensure that your first boot is going straight to recovery mode not homescreen
OR you can try patching boot using magisk canary @ https://www.youtube.com/watch?v=ZGLWoJ-POlA then sign the patched boot using avbtool similar way you did for recovery
boot the phone up normally and check if it has root
I will try as soon as I can. Thank you