Samsung Galaxy J3 (SM-J320FN) Firmware Overview
What is the latest SM-J320FN firmware?
J320FNXXU0ARH1, released November 15, 2018 for region O2U with Android 5.1.1. It is a feature update on bootloader binary 0. The archive holds 2 official builds for this region.
Is the Samsung Galaxy J3 still getting updates?
Most likely not: there has been no new firmware since November 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-J320FN firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 0:
- Binary 0 — since Aug 2018
SM-J320FN firmware for region O2U
How to Flash SM-J320FN Firmware
Put the Samsung Galaxy J3 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 0 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.