DESCRIPTION

ROM Phone 1:1 Y21 – ROM Android 8.1.0

ONLY MT6737M

ROM Official 1:1 Y21 Version: G5KB1A_O_DX_A36_Y21_WELCOME_QA_B158_F1358_T40_ER381R_M01_20220531_1450 – full_g5b1_dx_a36-user 8.1.0 O11019

Gapps include - no Rooted

Language support:  Multilang

Install ROM :

- Unpack FlashTools, and Click on Flash_tool.exe
- Select "scatter-Loading" and search MT6737M_Android_scatter.txt in ROM
- Wait file to be added into Flash Tool
- Select "Download Only" or if upgrade "Firmware upgrade"
- Turn off your phone, remove the battery (if the battery is removable) and replace it after some seconds (and don't turn on the phone).

- Press “Download” button to start
- and connect your phone into the computer via USB data cable.
- The process will start and a red progress bar will appear after color purple, yellow.
- And green circles display
- Finish !

- You can now safely disconnect your phone and turn it on.

※Please make a backup of your device before installing or updating ROM