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[ROM][UNOFFICIAL][10.0][tb8704f/x/v] LineageOS 17.1 for Lenovo TAB 4 8 plus

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oldleaf

Member
Aug 17, 2021
5
1
I think you are missing somewhere , have checked that system partition and other important things are checked cause sometimes they automatically get un check and things fail . In my case after I installed rom , I have to go back and recheck all things and then install gapps but every other person said flash rom and gapps straight away but it failed for me
I repeated the same process to load 3 different versions about 10 times. And finally got the lineage-17.1-20210617-UNOFFICIAL-TB8704.zip installed successfully.
 

oldleaf

Member
Aug 17, 2021
5
1
Can you tell me if you have Vo-LTE support ?
Cause I don't
No. Vo-LTE doesn't work. It changed to "H" when making phone call.
My SIM did support VoLTE on my Samsung S10+.
Screenshot_20210820-203645_Settings_LI.jpg
Screenshot_20210820-204015_Phone_LI.jpg
 

FoRealz

Member
Aug 27, 2013
15
2
My tab4 is stucking on this screen for an hour. Am I missing any step?

View attachment 5388049
How did you install this? I was able to install the 2020 just fine, but tried to install the latest from Pedro and it just sits endlessly.

I'm definitely a n00b and took a stock android 8 tab 4 8 plus

I fastboot into twrp and then click install and then select the 2021 download from the post above and swipe and it just sits. I'm not sure what's wrong


Recap, I installed the 2020 version of 17.1 from page 1 of this thread, now I wanted to utilize Pedro's link that includes the security fixes, but I can't get it to install, but maybe I'm doing it wrong, but seem to be stuck on the same screen as oldleaf.
 
Last edited:

oldleaf

Member
Aug 17, 2021
5
1
How did you install this? I was able to install the 2020 just fine, but tried to install the latest from Pedro and it just sits endlessly.

I'm definitely a n00b and took a stock android 8 tab 4 8 plus

I fastboot into twrp and then click install and then select the 2021 download from the post above and swipe and it just sits. I'm not sure what's wrong


Recap, I installed the 2020 version of 17.1 from page 1 of this thread, now I wanted to utilize Pedro's link that includes the security fixes, but I can't get it to install, but maybe I'm doing it wrong, but seem to be stuck on the same screen as oldleaf.
I forgot the exact procedure to upgrade to lineage-17.1-20210617-UNOFFICIAL-TB8704.zip. But I have just successfully upgrade from 20210617 to 20210820.

Here are the steps:
1) power off the tablet, Vol-Up + Power to boot the recovery screen.
2) factory default and boot to bootloader
3) with USB cable connected, run
fastboot boot twrp-3.2.3-0-tb_8704x.img
4) in TWRP, "advanced" -> "fix contexts"
5) back to main screen, wipe data
6) back to main screen, install lineage-17.1-20210820-UNOFFICIAL-TB8704.zip from SDcard
7) back to the last screen, install BiTGApps and reboot
 
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theMunstrrr

New member
Sep 18, 2021
1
0
Running into Bluetooth issues with the 20210820 release (first time installing) on a Lenovo TB-8704V. Anytime I attempt to enable Bluetooth, "Bluetooth keeps stopping". Bit of a noob to this, but happy to debug -- let me know what you need! Thanks!
 

oldleaf

Member
Aug 17, 2021
5
1
Observed the following bugs with the 20210820 release.
1) screen timeout doesn't work (display stay on inside apps like Chrome)
2) double-tap to on/off screen doesn't work
 

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