T837R4TYS5CUC1 – Galaxy Tab S4 firmware
Build T837R4TYS5CUC1 is a security update for the Galaxy Tab S4 (SM-T837R4)
on Android 10. It first appeared on Samsung's servers on Apr 7, 2021 (method) and has reached
1 region so far. It raises the bootloader bit from 4 to 5: once installed, the device no longer accepts firmware with bit 4 or lower, so a downgrade to T837R4TYS4CTI1 is blocked. Samsung still serves this file.
- Model
- SM-T837R4
- Android
- Android 10
- Type
- Security
- Bootloader bit
- 5
- First released
- Apr 7, 2021
- Regions
- 1
Rollout timeline by region
The date each region code (CSC) first received T837R4TYS5CUC1, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
USC | USA (US Cellular) | Apr 7, 2021 | day 0 | T837R4TYS5CUC1/T837R4USC5CUC1/T837R4TYS5CUC1 |
Download and release notes
samloader download -m SM-T837R4 -r USC -v T837R4TYS5CUC1/T837R4USC5CUC1/T837R4TYS5CUC1Samsung's release notes and security patch level for this update: SM-T837R4 / USC on doc.samsungmobile.com. What each part of the build number means: decode T837R4TYS5CUC1.