[Miscellaneous Android Development] pix106:
View attachment 5172303

CyanogenMod is a free, community built, aftermarket firmware distribution of Android 5.1 (Lollipop), which is designed to increase performance and reliability over stock Android for your device.

CyanogenMod 12.1

for Lenovo Tab2 A7-20F

(MT8127 only)​

Disclaimer

#include <std_disclaimer.h>

/*
* Your warranty is now void.
*
* We are not responsible for bricked devices, dead SD cards,
* thermonuclear war, or you getting fired because the alarm app failed. Please
* do some research if you have any concerns about features included in this ROM
* before flashing it! YOU are choosing to make these modifications, and if
* you point the finger at us for messing up your device, we will laugh at you.
*
*/

CyanogenMod 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. You will need to provide your own Google Applications package (gapps). CyanogenMod does still include various hardware-specific code, which is also slowly being open-sourced anyway.

All the source code for CyanogenMod is available in the CyanogenMod Github repo. And if you would like to contribute to CyanogenMod, please visit our Gerrit Code Review. Your changelog is whatever was merged into gerrit.

Prerequisites

latest LP Firmware, flashed with SP Flash Tool : firmware

latest TWRP : TWRP thread

clean install : you can try to dirty flash, but if you have issues you'll have to wipe your data partition

Working

basic rom features

Youtube works in HD, including live streaming

video recording works : 480p videos are encoded in h264, can't be played on tablet with google video player but can be played with vlc or on a computer

Not working

FM Radio

some video streaming

Changelog

2021/01/02

workaround service became is useless with hotplug governor, it can/should be removed.

Instead of uploading a new build just for this, a patch is attached to this thread

2020/12/31

Removed build: if you're on 2020/12/31 build and don't want to download a whole new build, a patch is attached to the first post of this thread to remove the background service that became useless.

Spoiler content hidden.Spoiler content hidden.

2020/11/11

initial release of 2020 builds

Please

do not use included CM root, use magisk instead

do not ask for ETA

do not ask for lineage 13 or newer

no USB driver help in this thread

do not re-upload files anywhere

if you report issues, provide logs

Downloads

ROM : androidfilehost - sourceforge

Gapps : opengapps.org (ARM/5.1/Pico)

Magisk : official xda thread

Installation

KitKat users : If you're coming from a KitKat ROM, you need to install stock LolliPop upgrade

before

flashing CyanogenMod.

Download the ROM (and optional Gapps) zip, and put it on the internal or internal sdcard of your tablet

Boot TWRP recovery

Perform a nandroid backup of your current ROM (optional but recommended)

Wipe Data/Factory reset

Flash ROM

Optional: Install the Google Apps addon package

Reboot

Update

If not explicitly asked to do a clean install, you can update a previous version without wiping your data

Download the updated ROM

Boot TWRP recovery

Perform a nandroid backup of your current ROM (optional but recommended)

Flash ROM

Wipe Cache/Dalvik cache

Reboot

Contributors

pix106

Source Code: https://github.com/LenovoTab2A7