Code:
/*
* I'm not responsible for bricked devices, dead SD cards, thermonuclear war, or you getting fired because the alarm app failed (like it did for me...).
* Please do some research if you have any concerns about features included in the products you find here before flashing it!
* YOU are choosing to make these modifications, and if you point the finger at me for messing up your device, I will laugh at you.
* Your warranty will be void if you tamper with any part of your device / software.
* Same statement for XDA.
*/LineageOS is a free, community built, aftermarket firmware distribution of Android 9 (Pie), which is designed to increase performance and reliability over stock Android for your device.
LineageOS is based on the Android Open Source Project with extra contributions from many people within the Android community. It can be used without any need to have any Google application installed. Linked below is a package that has come from another Android project that restore the Google parts. LineageOS does still include various hardware-specific code, which is also slowly being open-sourced anyway.
All the source code for LineageOS is available in the LineageOS Github repo. And if you would like to contribute to LineageOS, please visit out Gerrit Code Review.
What works:
Wifi
Bluetooth
Audio
LED
USB
RIL
Encryption
Fingerprint
Camera
Hall sensor
DT2W
Selinux Enforcing
Broken
nothing
Source code:
device: https://github.com/lenovo-devs/android_device_lenovo_TBX704
device-common: https://github.com/lenovo-devs/android_device_lenovo_tb-common
kernel: https://github.com/lenovo-devs/android_kernel_lenovo_msm8953
vendor: https://github.com/lenovo-devs/proprietary_vendor_lenovo
Important
If you are using this ROM first time, wipe data. Wipe data completely. I mean the option where you need to enter "yes". Use this option and then flash the rom.
This ROM only works with the TWRP I added.
If you want to use GAPPS, flash it directly after flashing ROM. Don't let the ROM boot. Otherwise your device will not get certification, so you will not have Google Access.
Instructions (thx @matshias, just changed few lines to get ROM flashing working)
Download
2019-08-12 (hotfix)
• hotfix: fix camera
• security patch level: 2019-08-01
ROM
TWRP (Use this for TB704L too; you guys don't need 4g in recovery
)You can also get the latest ROM updates from codeworkx here:
https://sourceforge.net/projects/lineageos-on-lenovo/files/16.0/TBX704/
Bulids are same, just update.
Older downloads
Optional downloads
Dolby Digital Plus (use the TWRP one)
GAPPS (use 9.0 arm64; I suggest using pico variant)
Mounting system rw
This is impossible on our tablet. The bootloader enforces verity check, which causes this issue.
The only possibility is to modify bootloader, what is dangerous and requires good knowledge.
there is a workaround using magisk with a mod. which mounts your system rw on mount:
https://xdaforums.com/showpost.php?p=79681018&postcount=259
Thanks
@highwaystar_ru (he gave me the important hint, also used his sources and his thread
)@LumenReaper (for his work with CM14.1, where I took big part of his device tree :fingers-crossed
@Flowah123 for the TB-X704L files :fingers-crossed:
Donations
Thanks to @rorzer, @Preyer11, @Tschumi, @MrMagic, @max_work, @vicenza & 5 x anonymous
Please don't support Lenovo and buy their tablets
Code:
[I]Updates vary depending on the model where our tablets receive Android and security updates after the introduction.
We announced Tab 4 10 Plus in February 2017 and since then it has received seven OTA updates.
However, this model has reached the end of its update cycle and will not receive any more updates in the future.
- Lenovo (2018-05-11)[/I]Reporting bugs
Please tell what mods you are using and what tablet variant (TB-X704F or L or ABCDEFGH..)
If your tablet doesnt start:
go to TWRP. use file manager, go to sys/fs/pstore, copy the files and upload it here.
if your tablet starts and bug appears later:
go to TWRP. use file manager, go to sys/fs/pstore, copy the files
start your tablet normal, let the bug appear, enter adb root
use adb logcat and adb shell dmesg, copy the content to a text file and upload here
XDA:DevDB Information
[ROM][UNOFFICIAL][9.0][TB-X704F/L] LineageOS 16.0 for Lenovo Tab4 10 Plus, ROM for the Lenovo Thinkpad Tablet
Contributors
yener90, codeworkx
ROM OS Version: 9.x Pie
Version Information
Status: Testing
Created 2019-04-21
Last Updated 2019-06-11
Last edited:
