IIIF150 B2 Firmware Flash File (Stock ROM)

The term Official Firmware describes the version of the operating system that the device’s manufacture pre-installs. It is the original firmware that comes with a device and can be used to return it to its default settings.

IIIF150 B2 Stock firmware is useful for fixing issues such as hang on Logo, frp lock, fastboot Mode, display Black or white after flash, dead recovery, dead after flash etc. Stock ROMs are often specific to a particular device and are not interchangeable between different devices.


  • Make a backup before process
  • charge the device at least 50% to prevent accidental shut down during the process


  • flash at own risk
Firmware Information:
Device Name: IIIF150 B2
ROM Type: Full ROM
SoC: unisoc
OS: Android 13xx
Password: Null
Root Access: No
Firmware Version: check below list

Download Links

Available Firmware

How to Install Stock Firmware on IIIF150 B2

  • Download and Install SPD Driver on your computer
  • Download and Extract Firmware File and Flash tools
  • Run SPD Flash tool

  • Click load Package & Select Pac file from the downloaded ROM folder

  • Click Download/Start Arrow

  • Connect Your switched off Phone by pressing volume up & down key
  • Wait until success

  • once done, disconnect device & switch it ON

Install using Fastboot:

Make sure bootloader is unlocked

fastboot flash 'partition name' 'filename'

replace partition name and filename with exact partition and file

Install using Stock Recovery:

adb sideload filename
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