ONLY MT6735M

Update Official ROM POLYTRON 4G550 version  : POLYTRON_4G550_V2.8_160328 – 1490SQ_L900S_T2.A1.160328.L1_MP3.HD.B1B5B8_FDD_B1B3B8.EN.MV1616.P10A

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Update Official ROM POLYTRON 4G550 version  : POLYTRON_4G550_V1.8_160324 – 1490SQ_L900S_T2.A1.160324.L1_MP3.HD.B1B5B8_FDD_B1B3B8.EN.MV1616.P10A

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Official ROM POLYTRON 4G550 version  : POLYTRON_4G550_V1.4_160309 – 1490SQ_L900S_T2.A1.160309.L1_MP3.HD.B1B5B8_FDD_B1B3B8.EN.MV1616.P10A

full_bird6735m_35gu_a_l-user 5.1 LMY47D

Gapps include – No Rooted

Language support : Multilang

Install ROM:

- Unpack FlashTools, and Click on Flash_tool.exe
- Select "scatter-Loading" and search MT6735M_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.