Recently, Lenovo rolled out Android 7.0 Nougat software update for Lenovo K6 Note with new features and performance enhancements. However, if your K6 Note is unlocked, installed TWRP recovery or rooted it, you will not be able to install the official Android 7.0 Nougat OTA update on it. However, a TWRP flashable stock Android 7.0 Nougat firmware is now available for Lenovo K6 Note (K53a48). The firmware is based on official Nougat S218 release, but modified.
Lenovo K6 Note was launched with Android Marshmallow out of the box and upgraded to Android Nougat a few weeks back. However, if the bootloader is unlocked and TWRP custom recovery installed on it, you will not get the Nougat OTA update. However, still you can enjoy Android 7.0 Nougat and its goodies with the TWRP flashable official Nougat firmware.
Before start, do remember that though the firmware is based on official Nougat S218 firmware, it is modified, pre-rooted, and removed many Lenovo system apps. The ROM should works on both Lenovo K6 Note (K53a48) and Lenovo K6 Plus (K53b36).
Note that the ROM can be flashed on top of Android 6.0 Marshmallow, or install as fresh, but you will not be able to change region if flashed as fresh. The developer may fix it soon.
Disclaimer: The given file is modified. Follow the instruction at your own risk. We will not be liable if any damage occurs to your device and/or its components. It is recommended for technically talented users only.
2. Reboot your phone into TWRP recovery
3. In recovery, select ‘Backup’ and create a Nandroid backup (recommended)
4. Now, select ‘Install’, navigate to ROM zip file and swipe flash it.
5. After installation completed, the device will boot and reboot.
Setup and enjoy your new OS. Leave your views in the comment section below (Source – adilrenzu)