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[RECOVERY][TB-8704X/F/V][UNOFFICIAL] TWRP 3.4.0-0 for Lenovo Tab4 8 Plus

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lancebuks

Senior Member
Mar 29, 2012
332
284
Yokosuka
I forked Matshias repo and updated TWRP for the Lenovo Tab4 8 Plus. TWRP for TB-8704X/F/V were built using their respective kernels so cross flashing may not work so make sure you flash the right one for your device, for example flashing TWRP for TB-8704X on the TB-8704F will break touch.

Credits to Matshias for providing his device tree
I only have the TB-8704X so thanks to plutothot for helping test this on the TB-8704F and to xsacx for helping test this on the TB-8704V

Thanks to everyone in the LOS 16 and LOS 17.1 threads for the encouragement.

Downloads TWRP 3.3.1-0 and 3.4.0-0:
TB-8704X: https://mega.nz/folder/EBdHzQhB#YByote-mycBv_PS2IbDplQ
TB-8704F: https://mega.nz/folder/oVNjXY5Z#4fe5VZwFBH4sgbQxRYubXg
TB-8704V: https://mega.nz/folder/oANRjIoR#ZVIdEyNSr0_t7BSDiXZMFg

Sources:
TWRP Manifest: https://github.com/minimal-manifest-twrp/platform_manifest_twrp_omni/tree/twrp-7.1
Device Tree (TB-8704X): https://github.com/lancebukkake/twrp_device_lenovo_tb_8704x
Device Tree (TB-8704F): https://github.com/lancebukkake/twrp_device_lenovo_tb_8704x/tree/8704F
Device Tree (TB-8704V): https://github.com/lancebukkake/twrp_device_lenovo_tb_8704v

Changelog:
TWRP-3.4.0-0
-Updated to TWRP-3.4.0-0

TWRP-3.3.1-0
-initial build
 
Last edited:

lancebuks

Senior Member
Mar 29, 2012
332
284
Yokosuka
I've had reports that touch is broken on TB-8704F with TWRP 3.4.0-0. If more people reports the same issue then I'll remove TWRP 3.4.0-0 for TB-8704F. Honestly I don't see any difference between 3.3.1-0 and 3.4.0-0 anyways :).
 
Last edited:

lancebuks

Senior Member
Mar 29, 2012
332
284
Yokosuka
So is 3.4.0 working OK on TB-8704F??.......I'm trying to interpret you crossing out your last post :confused: @lancebuks
Sorry about that - I crossed it out and went downstairs for dinner and forgot to finish updating it.
Yes 3.4.0-0 is working on the 8704F. Just make sure that you flash the correct build for your device otherwise touch will break, this is because each TWRP uses different kernels for each device, I couldn't build a one-in-all.
 
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mad4some

Senior Member
Dec 10, 2012
538
165
East TN
Sorry about that - I crossed it out and went downstairs for dinner and forgot to finish updating it.
Yes 3.4.0-0 is working on the 8704F. Just make sure that you flash the correct build for your device otherwise touch will break, this is because each TWRP uses different kernels for each device, I couldn't build a one-in-all.

No worries, and thanks!! :D
 

Here's Jonny

Senior Member
Jun 15, 2008
72
1
Hi.

I've flashed LineageOS 17.1 and it seems to be working fine, so now I'd like to back up.

I've gone in to your latest TWRP (fastboot boot into TWRP) and selected Backup.
Left the default options and swiped to continue, it outputs the following and then nothing happens.

This is what I see after an hour:
Data successfully decrypted, new block device: '/dev/
block/dm-0'
Updating partition details...
...done
Successfully decrypted with default password.
Updating partition details...
...done
Full SELinux support is present.
MTP Enabled
Updating partition details...

I've left the tablet for 2hours and still it sites here.

Any ideas how to resolve this so I can back up ?
Thanks
 

Here's Jonny

Senior Member
Jun 15, 2008
72
1
Quick update on my issue, this is now working.

I've had to boot into twrp-3.2.3-0-tb_8704x.img not TWRP-3.4.0-0_TB-8704F.img to get this working.
Is there an issue with TWRP-3.4.0-0_TB-8704F.img ?

Thanks
 

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