J720MUBSBCUB1 – Galaxy J7 Duo firmware
Build J720MUBSBCUB1 is a security update for the Galaxy J7 Duo (SM-J720M)
on Android 10. It first appeared on Samsung's servers on Apr 8, 2021 (method) and has reached
2 regions so far. It raises the bootloader bit from 10 to 11: once installed, the device no longer accepts firmware with bit 10 or lower, so a downgrade to J720MUBSACTI2 is blocked. Samsung still serves this file.
- Model
- SM-J720M
- Android
- Android 10
- Type
- Security
- Bootloader bit
- 11
- First released
- Apr 8, 2021
- Regions
- 2
Rollout timeline by region
The date each region code (CSC) first received J720MUBSBCUB1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
CRC | Costa Rica | Apr 8, 2021 | day 0 | J720MUBSBCUB1/J720MOWABCUB1/J720MUBSBCUB1 |
TPA | Panama | Apr 8, 2021 | day 0 | J720MUBSBCUB1/J720MOWOBCUB1/J720MUBSBCUB1 |
Download and release notes
samloader download -m SM-J720M -r CRC -v J720MUBSBCUB1/J720MOWABCUB1/J720MUBSBCUB1Samsung's release notes and security patch level for this update: SM-J720M / CRC on doc.samsungmobile.com. What each part of the build number means: decode J720MUBSBCUB1.