J337R4TYSBBUD2 – Galaxy J3 Top firmware
Build J337R4TYSBBUD2 is a security update for the Galaxy J3 Top (SM-J337R4)
on Android 9. It first appeared on Samsung's servers on May 10, 2021 (method) and has reached
1 region 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 J337R4TYUABTJ2 is blocked. Samsung still serves this file.
- Model
- SM-J337R4
- Android
- Android 9
- Type
- Security
- Bootloader bit
- 11
- First released
- May 10, 2021
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received J337R4TYSBBUD2, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
USC | USA (US Cellular) | May 10, 2021 | day 0 | J337R4TYSBBUD2/J337R4USCBBUD2/J337R4TYSBBUD2 |
Download and release notes
samloader download -m SM-J337R4 -r USC -v J337R4TYSBBUD2/J337R4USCBBUD2/J337R4TYSBBUD2Samsung's release notes and security patch level for this update: SM-J337R4 / USC on doc.samsungmobile.com. What each part of the build number means: decode J337R4TYSBBUD2.