Samsung Galaxy On7 Refresh (SM-G611M) Firmware Overview
What is the latest SM-G611M firmware?
G611MUBSACUG1, released August 7, 2021 for region DOO with Android 9. It is a security update on bootloader binary 10. The archive holds 3 official builds for this region.
Is the Samsung Galaxy On7 Refresh still getting updates?
Most likely not: there has been no new firmware since August 2021, so Android 9 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-G611M firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. In the archive the binary of this model rose from 9 to 10:
- Binary 10 — since Apr 2021
- Binary 9 — since Oct 2020
A phone already on binary 10 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 10 build. How to read a build number.
SM-G611M firmware for region DOO
How to Flash SM-G611M Firmware
Put the Samsung Galaxy On7 Refresh 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 10 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.