[RECOVERY][TB-X605F/L][OFFICIAL] TWRP 3.6.x for Lenovo Smart Tab M10

[darrien273]

You could be right. But just be mindful that fastboot boot *.img has never worked for any image on the X605F/L variant. So this might be a red herring.

I did try flashing to recovery and then restart to recovey, but that just dumps me back into fastboot. Most likely due to the same issue.

Looking back through the thread, I can't see anyone reporting this twrp working for the X605FC. Only reports of problems. So I guess I'll have to call it: the official twrp for the X605F won't work on the X605FC. I'll update the OP.

Building twrp for X605FC
If you're a developer, it's a trivial matter to modify the DT for the X605F.

I know my way around python and some C/C++, but I have never done anything for Android.

You should only need to replace the kernel+dtb image and vendor blobs, double-check the partition mapping in BoardConfig.mk, and modify some simple makefiles with the correct device name.

I wouldn't know where to start. The build description of TWRP is rather sparse and seems to assume a lot of android knowledge.

 

[Lamntox]

Root doesn't help me, since I plan on putting Ubuntu Touch on it.

i have never seen someone try to mad man their way into slapping ubuntu touch on a lenovo
may the gods favour you in your adventure

 

[darrien273]

It is available for the TB-X605F/L that's why I bought the tablet. I didn't expect to get the FC though.

 

[darrien273]

So @Yahoo Mike , would you be willing to help me compile for the TB-X605FC?

 

[shea9872]

I seem to be having some issues booting into TWRP after flashing it on my TB-X605F. I followed the instructions in the first post, but when I press down the volume and power keys, the tablet just keeps rebooting, never actually getting into the recovery. Additionally, if I use either fastboot reboot recovery, or let go of the keys on any of the reboots (I tried on the first, second and third reboots), it just boots straight into the system. It feels like I'm missing a step somewhere.

 

[darrien273]

On my TB-X605FC, the hot-key for recovery is disabled. I have to go into fastboot and from there select "Restart recovery"
See if that works for you.

 

[shea9872]

On my TB-X605FC, the hot-key for recovery is disabled. I have to go into fastboot and from there select "Restart recovery"
See if that works for you.

Is this an option on the tablet itself, or a command? In my fastboot, I've just got a lenovo logo and red "Fastboot Mode" text on the screen.

 

[Lamntox]

Is this an option on the tablet itself, or a command? In my fastboot, I've just got a lenovo logo and red "Fastboot Mode" text on the screen.

Yo
If youre looking for root, check page 6, since that happens try using the test versions first, if they do not work refer to my guide in page 6 of this thread. Twrp crashes and thus recovery doesnt boot after you flash twrp in because system kernel blocked out the decryption process
Gluck

 

[Lamntox]

Just make sure to use LMSA to download firmware and extract boot.img from it and put it on your device, you shouls use magisk manager to patch magisk root in it
Youd wanna extract the boot.img with the magisk in it to your computer to flash the stock boot.img in fastboot afterwards, your tablet should have root after this

 

[shea9872]

Ideally I'd like to have TWRP as well, but I'll give that a go.

 

[Yahoo Mike]

I seem to be having some issues booting into TWRP after flashing it on my TB-X605F. I followed the instructions in the first post, but when I press down the volume and power keys, the tablet just keeps rebooting, never actually getting into the recovery. Additionally, if I use either fastboot reboot recovery, or let go of the keys on any of the reboots (I tried on the first, second and third reboots), it just boots straight into the system. It feels like I'm missing a step somewhere.

The 3-button reboot is very touchy. Unfortunately there's no way around it, if you want to load twrp.

Just keep trying with the 3-button reboot , you'll get the knack. I know it's annoying, but you have to find the sweet spot on your X605F to make the 3-button reboot work.

fastboot reboot recovery has never worked on this device. It says it does, but just boots the system instead. It sounds like the X605FC has a more modern fastboot with a menu. The X606F variants allow fastboot reboot recovery .

 

[Yahoo Mike]

So @Yahoo Mike , would you be willing to help me compile for the TB-X605FC?

I've sent a PM.

 

[shea9872]

Got Magisk running, but I seem to be getting an error that "your data may be corrupt". Only thing I've been doing is systemizing an app, which works for a few reboots, but then does this after a while. Anyone else been experiencing something similar?

 

[Lamntox]

Got Magisk running, but I seem to be getting an error that "your data may be corrupt". Only thing I've been doing is systemizing an app, which works for a few reboots, but then does this after a while. Anyone else been experiencing something similar?

Huh
Ive never had this issue with magisk, never seen the error before
Was systemizing apps your only action after or before root?
Also, were you using the predefined boot.img? It contains X605L code, not X605F these boot.img versions arent compatible
If so, use lmsa and do patch in the stock boot.img into your tablet, make sure to download and use ONLY X605F firmware, since your system is X605F
Then if everything goes back to fine, try patching the boot.img from X605F firmware with magisk and make sure to know if you have ramdisk or not, pretty important to know
If that errors again even with patched x605F boot.img, ill look into the root of the problem.

 

[shea9872]

Huh
Ive never had this issue with magisk, never seen the error before
Was systemizing apps your only action after or before root?
Also, were you using the predefined boot.img? It contains X605L code, not X605F these boot.img versions arent compatible
If so, use lmsa and do patch in the stock boot.img into your tablet, make sure to download and use ONLY X605F firmware, since your system is X605F
Then if everything goes back to fine, try patching the boot.img from X605F firmware with magisk and make sure to know if you have ramdisk or not, pretty important to know
If that errors again even with patched x605F boot.img, ill look into the root of the problem.

I installed magisk, installed busybox and systemizer, and then systemized an app and then updated that app. This particular app uses some pretty obscure android APIs (specifically around kiosk mode) so that could also be the cause. It seemed to restart fine several times until I launched the app into lock task mode for the first time.

I can also confirm I was using a boot image extracted from LMSA and then patched through Magisk manager.

 

[Lamntox]

I installed magisk, installed busybox and systemizer, and then systemized an app and then updated that app. This particular app uses some pretty obscure android APIs (specifically around kiosk mode) so that could also be the cause. It seemed to restart fine several times until I launched the app into lock task mode for the first time.

I can also confirm I was using a boot image extracted from LMSA and then patched through Magisk manager.

Ah good
So since systemizer can be the cause, try deleting it from the system first. Then if the device still gives out the error, do the same for busybox. If all else fails then the only good ol troubleshoot is rescuing the device and then doing the magisk obtaining process again
Tell me if anything happens

 

[shea9872]

Ah good
So since systemizer can be the cause, try deleting it from the system first. Then if the device still gives out the error, do the same for busybox. If all else fails then the only good ol troubleshoot is rescuing the device and then doing the magisk obtaining process again
Tell me if anything happens

Systemizer itself seems to work fine, it's just a very particular flow of lock task mode (and possibly updating the app) that seems to trigger the error. I've moved to a different solution now, which still uses systemizer, but with a more basic system app, so I'll see if that has the same issues.

 

[bearllm]

Hi, everybody，I have the x605m (62)
when i type this:
adb reboot bootloader
fastboot oem unlock-go

But the system shows：

fastboot oem unlock-go
FAILED (remote: 'unknown command')
fastboot: error: Command failed


I confirm that the device is in fastboot mode

how can i root the x605m (62)?

thanks

 

[Lamntox]

Hi, everybody，I have the x605m (62)
when i type this:
adb reboot bootloader
fastboot oem unlock-go

But the system shows：

fastboot oem unlock-go
FAILED (remote: 'unknown command')
fastboot: error: Command failed


I confirm that the device is in fastboot mode

how can i root the x605m (62)?

thanks

top kek
Find a specific command for the x605m to unlock bootloader

 

[Yahoo Mike]

Hi, everybody，I have the x605m (62)
...
fastboot oem unlock-go
FAILED (remote: 'unknown command')
fastboot: error: Command failed

Try fastboot flashing unlock

If that doesn't work, we'll have to look at the android bootloader image.