Samsung SM-A307GN Firmware Overview
What is the latest SM-A307GN firmware?
A307GNDXS6CWH1, released September 8, 2023 for region SMA with Android 11. It is a security update on bootloader binary 6. The archive holds 2 official builds for this region.
Is the Samsung SM-A307GN still getting updates?
Most likely not: there has been no new firmware since September 2023, so Android 11 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-A307GN firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 5 to 6:
- Binary 6 — since Aug 2023
- Binary 5 — since Mar 2023
A phone already on binary 6 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 6 build. How to read a build number.
SM-A307GN firmware for region SMA
How to Flash SM-A307GN Firmware
Put the Samsung SM-A307GN 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 6 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.