T355YDOS1CTJ2 – GALAXY Tab A firmware
Build T355YDOS1CTJ2 is a security update for the GALAXY Tab A (SM-T355Y)
on Android 7. It first appeared on Samsung's servers on Dec 7, 2020 (method) and has reached
4 regions so far. It keeps bootloader bit 1, so downgrading to the previous build T355YDOU1CRD2 is still possible. Samsung still serves this file.
- Model
- SM-T355Y
- Android
- Android 7
- Type
- Security
- Bootloader bit
- 1
- First released
- Dec 7, 2020
- Regions
- 4
Not yet released in 2 regions that are still on an older build: INS, SLK.
Rollout timeline by region
The date each region code (CSC) first received T355YDOS1CTJ2, counted from the first release.
| CSC | Region | Released | Rollout | Version (PDA/CSC/MODEM) |
|---|---|---|---|---|
XNZ | New Zealand | Dec 7, 2020 | day 0 | T355YDOS1CTJ2/T355YXNZ1CTJ2/T355YDOU1CQK1 |
XSA | Australia | Dec 7, 2020 | day 0 | T355YDOS1CTJ2/T355YXSA1CTJ2/T355YDOU1CQK1 |
XXV | Vietnam | Dec 8, 2020 | +1 day | T355YDOS1CTJ2/T355YOLD1CTJ2/T355YDOU1CQK1 |
TEL | Australia (Telstra) | Dec 9, 2020 | +2 days | T355YDOS1CTJ2/T355YTEL1CTJ2/T355YDOU1CQK1 |
Download and release notes
samloader download -m SM-T355Y -r XSA -v T355YDOS1CTJ2/T355YXSA1CTJ2/T355YDOU1CQK1Samsung's release notes and security patch level for this update: SM-T355Y / XSA on doc.samsungmobile.com. What each part of the build number means: decode T355YDOS1CTJ2.