Firmware List:
| # | Model | Version | Region | OS | Size | |
|---|---|---|---|---|---|---|
| 1 | SM-T550 | T550XXU1CQL5 | MID | Nougat(Android 7.1.1) | 1.67 GB | Download |
| 2 | SM-T550 | T550XXS1BQA1 | MID | Marshmallow(Android 6.0.1) | 1.58 GB | Download |
| 3 | SM-T550 | T550XXU1BPG2 | MID | Marshmallow(Android 6.0.1) | 1.57 GB | Download |
| 4 | SM-T550 | T550XXU1APB1 | MID | Lollipop(Android 5.0.2) | 1.28 GB | Download |
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