Official Firmware Himax M3 M21i L107 Scatter File Mediatek MT6737M for Unbrick and repair stuck on logo.
Flash Himax M3 M21i L107 using SP-FlashTool or Other MTK Tools.

#Tag: firmware himax h51i, firmware himax m22, firmware himax m2 y12, custom rom himax y12, firmware himax m3, firmware himax polymer 3, firmware himax polymer li, how to overcome bootloop himax polymer

type file: ROM size: 1GB
md5: 66d655604400ff1d4a51ce404c2c7f05

Android Rom info:
 platform: MT6737M, cpu abi: arm64-v8a
 manufacturer: Himax
 board: full_i6388, name: M21i
 brand: Himax, model: M21i
 build id: NRD90M, version: 7.0 Nougat (HIMAX-M21i_L107)
 build description: full_i6388-user 7.0 NRD90M 1494558913 release-keys

Install ROM:
Open FlashTools Folder, and Click on Flash_tool.exe
Select "scatter-Loading"and search MT6737M_Android_scatter.txt in ROM Folder
Select "Download Only"or if out notifications PMT changed for the ROM Please select upgrade "Firmware upgrade"
Turn off your phone, remove the battery (if the battery is removable)
Press “Download”button to start
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.
Until there green circles display

Silahkan Download: