Samsung Galaxy J1 (2016) (SM-J120G) Firmware Overview
What is the latest SM-J120G firmware?
J120GDXU2ARB1, released March 20, 2018 for region XID with Android 5.1.1. It is a feature update on bootloader binary 2. The archive holds 2 official builds for this region.
Is the Samsung Galaxy J1 (2016) still getting updates?
Most likely not: there has been no new firmware since March 2018, so Android 5.1.1 is the last version this model got. The final builds below are still the best choice for a clean reinstall.
Can I downgrade the SM-J120G firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 1 to 2:
- Binary 2 — since Feb 2018
- Binary 1 — since Dec 2017
A phone already on binary 2 rejects builds with a lower binary in Odin ("SW REV CHECK FAIL"), so it can go back to an earlier Android version only if that version has a binary 2 build. How to read a build number.
SM-J120G firmware for region XID
How to Flash SM-J120G Firmware
Put the Samsung Galaxy J1 (2016) into Download Mode, load the BL, AP, CP and CSC files into Odin on a Windows PC and press Start. Pick a build with Bit 2 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.