Samsung Galaxy J7 Duo (SM-J720M) Firmware Overview
What is the latest SM-J720M firmware?
J720MUBSBCUK2, released December 14, 2021 for region ZTO with Android 10. It is a security update on bootloader binary 11. The archive holds 3 official builds for this region.
Is the Samsung Galaxy J7 Duo still getting updates?
Most likely not: there has been no new firmware since December 2021, so Android 10 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-J720M firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 11:
- Binary 11 — since May 2021
SM-J720M firmware for region ZTO
How to Flash SM-J720M Firmware
Put the Samsung Galaxy J7 Duo 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 11 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.