Samsung Galaxy J1 (2016) (SM-J120ZN) Firmware Overview
What is the latest SM-J120ZN firmware?
J120ZNDVU1AQH2, released February 21, 2018 for region VNX . It is a feature update on bootloader binary 1. The archive holds 3 official builds for this region.
Is the Samsung Galaxy J1 (2016) still getting updates?
Most likely not: there has been no new firmware since February 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-J120ZN 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 Nov 2017
- Binary 1 — since Aug 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-J120ZN firmware for region VNX
How to Flash SM-J120ZN 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.