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Teclast T40 Plus Root

Teclast T40 Plus Root

runnerGunn4r
runnerGunn4r
runnerGunn4r
Newbie
3
27-09-2021, 07:06 PM
#1



I successfully unlocked the bootloader with this tutorial: https://www.hovatek.com/forum/thread-326...219397.htm, and now I want to proceed to root.

I would like to back up /system before I flash a GSI image in case I need to roll back to stock, but the .pac file supplied by Teclast here http://www.teclast.com/en/firmware/showtools.php doesn't seem to include either /system or /recovery.

I was able to extract boot.img with https://androidmtk.com/download-spd-upgr...l-versions, but fastboot fails to write both boot and recovery partitions:

Code:

FAILED (status read failed (Too many links))

Ideally, I'd like to extract all of boot.img, recovery.img, and system.img to roll back any changes, as I believe the UNISOC porter (https://www.hovatek.com/forum/thread-21669.html) only works for devices up to Android 9 (the Teclast T40 Plus ships with Android 11).

How can I proceed to root my Teclast T40 Plus and back up system, recovery, and boot?
X3non
X3non
X3non
Recognized Contributor
22,062
28-09-2021, 01:17 PM
#2
(27-09-2021, 07:06 PM)runnerGunn4r ...
I would like to back up /system before I flash a GSI image in case I need to roll back to stock, but the .pac file supplied by Teclast here http://www.teclast.com/en/firmware/showtools.php doesn't seem to include either /system or /recovery.

devices running android 10 & above have super partition (containing system, product, vendor)
if no recovery then it means recovery is within boot
for firmware backup, see https://www.hovatek.com/forum/thread-31800.html (use fdl files from the firmware you downloaded)


(27-09-2021, 07:06 PM)runnerGunn4r ...
Code:

FAILED (status read failed (Too many links))

if you're trying to flash custom images, then you need to flash a custom vbmeta first


(27-09-2021, 07:06 PM)runnerGunn4r How can I proceed to root my Teclast T40 Plus...?

see https://www.hovatek.com/forum/thread-32678.html
This post was last modified: 28-09-2021, 01:18 PM by X3non.
Bluebomber182
Bluebomber182
Bluebomber182
Enthusiastic Member
8
30-03-2022, 12:46 AM
#3
(27-09-2021, 07:06 PM)runnerGunn4r How can I proceed to root my Teclast T40 Plus

You need to use the spreadtrum research download tool (RDT).
See this guide on how to use the RDT.
The basic concept is that you need to download the official firmware from the teclast homepage, load it into RDT, uncheck all partitions (save for those that are compulsory and cannot be unchecked), select only boot and vbmeta partitions, and as images to be flashed you need to browse the ones found in the archive I posted, instead of those found in the original firmware package.
Begin flashing, your device will perform a hard reset, and then you should boot into rooted firmware.

Here is a link for the zip containing the patched magisk boot image and the custom signed vbmeta image.
https://forum.xda-developers.com/t/tecla...t-86081127
https://forum.xda-developers.com/attachm...p.5479965/
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