Download Cubot Rainbow Firmware file and follow the procedure to install Cubot Rainbow Flash File and get your phone back.
You are about to download Cubot Rainbow stock rom.
You can use this firmware file to flash Cubot Rainbow.
If also you want to upgrade or downgrade your smartphone, you can use this stock rom.
This firmware flash file can also help to fix a lot of problems on your smartphone.
Some problems like hanging, battery drain, app crashing, and other problems.
You can use this stock rom to remove the locked screen, remove root, fix many system errors, and unbrick Cubot Rainbow.
Download and instructions
Android version: 6.0
Cubot Model: Rainbow
Drivers: Cubot Rainbow Drivers
Firmware Filename: Cubot_Rainbow_E6021C_MT6580_V03_20171116.zip
Download Cubot Rainbow Stock Firmware.
How to flash the firmware File
Different Chipset? Learn How to flash All Firmware
