Firmware List:
| # | Model | Version | Region | OS | Size | |
|---|---|---|---|---|---|---|
| 1 | SM-J250N | J250NKOU1ARL1 | KOO | Nougat(Android 7.1.1) | 1.36 GB | Download |
| 2 | SM-J250N | J250NKOU1ARE2 | KOO | Nougat(Android 7.1.1) | 1.36 GB | Download |
| 3 | SM-J250N | J250NKOU1ARD2 | KOO | Nougat(Android 7.1.1) | 1.37 GB | Download |
| 4 | SM-J250N | J250NKOU1ARD1 | KOO | Nougat(Android 7.1.1) | 1.37 GB | Download |
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