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Custom Rom / rooting Options vor TB-125FU (Lenovo Tab M10 Plus 3rd Gen)

 1 year ago
source link: https://forum.xda-developers.com/t/custom-rom-rooting-options-vor-tb-125fu-lenovo-tab-m10-plus-3rd-gen.4480023/page-6#post-88337647
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Custom Rom / rooting Options vor TB-125FU (Lenovo Tab M10 Plus 3rd Gen)

@joeblowma

hi

nice. you have solved the Problem.
when i have time, can you write a short manual?

-----

well, i have used Universal Android Debloater GUI today.

thats a good tool i think. i have uninstall many apps such youtube, kids, google file and photos and lenovo tablet center

has someone else xp with that?

i cant find the com.google.android.apps.XXX

for

- gmail
- google PlayStore (not recommended)
- google Assist
- Memo (lenovo i think)
- GBoard (i have no idea. its for digital key board, when i deactivate, only speechassist work)
- Google-Service
- SMART Launcher (whats that?)
You can install a lot of those from APKmirror. GBoard is the keyboard. If you don't want to reinstall it, check to see in the language/input settings to see if there's another soft/virtual keyboard to set as default.
Smart Launcher is the default home launcher. If you uninstalled that, you'll have to adb push and install another launcher apk.

fire_cuber

Member
Dec 28, 2020
Hey everyone.
i reading all your posts, but i cant imagine bring my tablet to a root. i have a different firmware like rescue image. What can i do? Can everone tell my step by step?

Please

My Firmware Version on Tablet
TB125FU_S000118_220927_ROW
The Download
TB125FU_S000139_221208_ROW


@joeblowma
You have the boot.img from 220927? Can you give it to me?
can it work with tah t for me?

thx
have a nice week
Do you still have the download TB125FU_S000139_221208_ROW?
I need the boot.img of it please.

I am currently on TB125FU_S000139_221208.

I wanted to do the OTA update to TB125FU_S000144_230105_ROW today but Magisk says.
stock backup does not exist.
I know how to fix this but I need the boot.img from the TB125FU_S000139_221208_ROW
gist.github.com

fix-magisk-stock-backup-does-not-exist.md

GitHub Gist: instantly share code, notes, and snippets.
gist.github.com

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joeblowma

Senior Member
Oct 26, 2012 Edmonton
Do you still have the download TB125FU_S000139_221208_ROW?
I need the boot.img of it please.

Here you go, let me know if it works out for you. I just did this second update to 144 and nothing except a factory reset worked. This time, I couldn't even get magisk to recognize the clean copy following instructions that worked before, the instructions you just mentioned, and the shell script talked about in the comments there... weird all around.

Attachments

  • TB125FU_S000139_221208_ROW_boot.zip
    20.3 MB · Views: 15

fire_cuber

Member
Dec 28, 2020
Here you go, let me know if it works out for you. I just did this second update to 144 and nothing except a factory reset worked. This time, I couldn't even get magisk to recognize the clean copy following instructions that worked before, the instructions you just mentioned, and the shell script talked about in the comments there... weird all around.

Thank you very much, I will test it.

I ended up RMA-ing the tablet. Couldn't find any other solution to fixing it, so that was the end result. :/

Reactions: joeblowma

fire_cuber

Member
Dec 28, 2020
Here you go, let me know if it works out for you. I just did this second update to 144 and nothing except a factory reset worked. This time, I couldn't even get magisk to recognize the clean copy following instructions that worked before, the instructions you just mentioned, and the shell script talked about in the comments there... weird all around.
Yes, it's a pity that it didn't work for me either, so I'll reset the whole thing.
But thanks anyway for the file.

[Edit]
Hmm, resetting with the "Rescue and Smart Assistant" tool from Lenovo doesn't work either.
But the tablet still starts as it is with root+magisk.
I will now leave the tablet as it is and not install any further updates.
I don't feel like doing any more tests.
Last edited: Feb 19, 2023

Reactions: joeblowma

joeblowma

Senior Member
Oct 26, 2012 Edmonton
Hmm, resetting with the "Rescue and Smart Assistant" tool from Lenovo doesn't work either.

We discussed copiously how broken their "smart" assistant is. They seem to have prioritized security, oddly as we can root it fairly easily, over end users being able to restore software problems.

I have no idea why the process of having root even after reflashing the unmodified bootloader doesn't let updating work without a factory reset, but with Swift Backup I'm able to use root to backup around 95% of everything, put the clean bootloader, factory reset, update, root again and restore nearly everything in around an hour (mostly spent waiting).

After doing it twice inside a month or so... I'm almost at the point of trying some GSI ROMs instead.

We discussed copiously how broken their "smart" assistant is. They seem to have prioritized security, oddly as we can root it fairly easily, over end users being able to restore software problems.

I have no idea why the process of having root even after reflashing the unmodified bootloader doesn't let updating work without a factory reset, but with Swift Backup I'm able to use root to backup around 95% of everything, put the clean bootloader, factory reset, update, root again and restore nearly everything in around an hour (mostly spent waiting).

After doing it twice inside a month or so... I'm almost at the point of trying some GSI ROMs instead.
Let us know if you succeed in that venture. I'd love to ditch Lenovo's software as well.

HansDampfi

Member
Jan 24, 2023
I am very satisfied with the tablet and its quality. It's a pity that there aren't that many and that the incentive to push CFW is so low
Hey i got one of these tablets ( a TB125FU) how do i go with installing a custom rom on it ive rooted it with magisk already but now i want to put a gsi on it or something
Hey i got one of these tablets ( a TB125FU) how do i go with installing a custom rom on it ive rooted it with magisk already but now i want to put a gsi on it or something

Ive tried putting one on in the past and it just bootloops

ms32035

New member
Mar 27, 2023
Did anyone succeed with a custom ROM in the end? I just upgraded to TB125FU_S000160_230227_ROW via RSA, end despite removing userdata flash and format from FlashInfo.tmp after the upgrade the only thing that worked was a factory reset. This is the second time it happened to me. Thinking about selling this tablet if that's how every upgrade will look like.

Top Liked Posts

  • For sure, it would be nice to kill that serial port notification on mine too.

    It's pretty simple, definetly a very annoying message...go to settings, apps, see all apps, click the 3 dot menu at top right, show system, go to android system, notifications, turn off developer messages

    Hmm, resetting with the "Rescue and Smart Assistant" tool from Lenovo doesn't work either.

    We discussed copiously how broken their "smart" assistant is. They seem to have prioritized security, oddly as we can root it fairly easily, over end users being able to restore software problems.

    I have no idea why the process of having root even after reflashing the unmodified bootloader doesn't let updating work without a factory reset, but with Swift Backup I'm able to use root to backup around 95% of everything, put the clean bootloader, factory reset, update, root again and restore nearly everything in around an hour (mostly spent waiting).

    After doing it twice inside a month or so... I'm almost at the point of trying some GSI ROMs instead.

    ok, so ur just pulling the boot img from one of the GSI roms...im just trying to pull the stock boot img...do you happen to know where one can download the stock firmware for this device, this is my 1st lenovo tablet

    LMSA. https://pcsupport.lenovo.com/us/en/downloads/ds101291-rescue-and-smart-assistant-lmsa
    Use this tool. Install and explore the file and folder structure it creates. Interrupt the process before it flashes your tablet for it will erase the files you need from your computer if you don't. Use trial and error here.

    Since the original question was about root, Ill keep this going

    I was able to download the most recent ROM from Lenovo rescue which was super simple, it downloads the ROM first and wont start the flash till you click the button. I did retrieve the stock boot.img, patched it, and flashed it, rebooted and had root. Heres where the many hours of fun started...I realized my wifi wasnt working (good sign something was messed up during flash). I realize the ROM downloaded from the Lenovo Rescue was newer then my old ROM. So I had flashed the newer boot.img over the old ROM (not good). I went back to Lenovo rescue to actually make use of the rescue and flash a full ROM. After completion I became stuck in fastboot mode. I could boot to recovery but not system and every restart or shutdown and restart would go straight to fastboot.

    I did try to manually flash the ROM using what i thought was the right files and order (using flashinfo.txt as the order and MT6768_Android_scatter.txt for the partition names for each image). Everything flashed successfully, but upon reboot I was still stuck in fastboot mode. I tried everything I could think of and even ran the Lenovo Rescue a few times.

    After many hours, I came across this command for fastboot..."fastboot set_active a" which finally allowed me to boot into system. I assume this tablet uses the A/B slot partitions, but I think they only make use of the A for boot? Thats my thought

    So next is too try to patch the correct disc.img for my current rom (which is the latest from Lenovo Rescue) and flash again making sure to flash to the boot_a partition and hopefully everything goes like it should

    Hopefully that command helps someone save many hours if they find themselves stuck in fastboot mode while rooting and/or flashing.
    I am very satisfied with the tablet and its quality. It's a pity that there aren't that many and that the incentive to push CFW is so low

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