[ROM][UNOFFICIAL][10.0][tb8504f/x] LineageOS 17.1 for Lenovo TAB4 8

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New member
Feb 20, 2011
Hi folks,

I'm in the middle of installing the custom rom but i'm stuck.
when I try to install the image lineage-17.1-20210408-UNOFFICIAL-TB8504.zip with twrp twrp-3.3.1-1-TB8504.img but when I hit the install it just keeps doing it forever without a response.
I've tried what CountDracula120 suggested. wiping the data and everithing and than wiping the system. but the process stucks at "formatting system using mke2fs..." what should I try? any suggestions?


New member
Feb 20, 2011
Looks like I've found the solution, you have to go into the mount section and make the system partition writable.


New member
Feb 20, 2011
Looks like I've found the solution, you have to go into the mount section and make the system partition writable.
and an other thing that i've fond, the only way it works is if you unselect read only, put back the check into the system box select it to be read only and uncheck it agan, than select system again. don't know why it is hapening but it's hapennig.


Feb 21, 2018

* 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:
Calls/SMS/Mobile data
FM radio
WLAN and USB tethering
You tell me

Source code:
device : https://github.com/lenovo-devs/android_device_lenovo_TB8504, https://github.com/lenovo-devs/android_device_lenovo_tb-common/tree/lineage-17.1-msm8937
kernel: https://github.com/lenovo-devs/android_kernel_lenovo_msm8953/tree/lineage-17.1-tbx304
vendor: https://github.com/lenovo-devs/proprietary_vendor_lenovo/tree/lineage-17.1-msm8937

  • Initial release
mailru: lineage-17.1-20210408-UNOFFICIAL-TB8504.zip
gdrive: lineage-17.1-20210408-UNOFFICIAL-TB8504.zip

Previous versions:

How to install
You have to had TWRP installed from this thread TWRP and ROOT for Tab 4 8/10 (Plus) (TB-8704X/F/V,TB-X704L/F, TB-8504X/F, TB-X304L/F or one from link below

In TWRP clean Data if you coming from stock ROM and do Install of this ROM. If you have android 8 stock rom installed you have to format Data with data loss, because used encryption is incompatible with android 7.1

Built from omnirom android 9.0 source (twrp 3.3.1), includes same kernel as Lineage build, with support for pstore (kernel logs after crash), exfat, ntfs, reboot to EDL mode.
mailru: twrp-3.3.1-1-TB8504.img
gdrive: twrp-3.3.1-1-TB8504.img

XDA:DevDB Information
[ROM][UNOFFICIAL][10.0][tb8504f/x] LineageOS 17.1 for Lenovo TAB4 8, ROM for the Lenovo Thinkpad Tablet

Source Code: https://github.com/lenovo-devs/android_kernel_lenovo_msm8953/tree/lineage-17.1-tbx304

ROM OS Version: 10.x Pie
ROM Kernel: Linux 3.10.x
Based On: LineageOs

Version Information
i updated this rom

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