DESCRIPTION

ROM Mobile POLYTRON 4G503 – ROM Android 6.0

ONLY MT6737M

Official ROM POLYTRON Version: POLYTRON_4G503_V6.2.13 - full_bd6737m_35g_b_m0-user 6.0 MRA58K

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