Samsung Galaxy W (SM-T255S) Firmware Overview
What is the latest SM-T255S firmware?
T255SKSUAOI2, released September 30, 2015 with Android 4.3. It is a security update on bootloader binary 30. The archive holds 4 official builds across 1 region (CSC). Each one is the full stock ROM (flash file) for Odin, not an OTA patch.
Is the Samsung Galaxy W still getting updates?
Most likely not: there has been no new firmware since September 2015, so Android 4.3 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-T255S firmware?
Only to builds with the same bootloader binary (the Bit column) or higher. All decodable builds in the archive share binary 30:
- Binary 30 — since Jun 2014
All SM-T255S firmware builds
Older SM-T255S Builds (Archive)
1 earlier build from the samdb.org catalogue. They are not in the download list above; the link searches for the build on the partner site.
| Build / PDA | Bit | Month | Regions (CSC) | |
|---|---|---|---|---|
| T255SKSUANF1 | 30 | Jun 2014 | SKC | Find |
How to Flash SM-T255S Firmware
Put the Samsung Galaxy W 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 30 or higher if your phone is already on the latest firmware. Use HOME_CSC to keep your data, CSC for a full wipe.