Firmware List:
| # | Model | Version | Region | OS | Size | |
|---|---|---|---|---|---|---|
| 1 | SM-J400M | J400MUBSECVE2 | UNE | Q(Android 10) | 2.49 GB | Download |
| 2 | SM-J400M | J400MUBSCCUE3 | UNE | Q(Android 10) | 2.47 GB | Download |
| 3 | SM-J400M | J400MUBSBCUC1 | UNE | Q(Android 10) | 2.47 GB | Download |
| 4 | SM-J400M | J400MUBU9CTGO | UNE | Q(Android 10) | 2.47 GB | Download |
| 5 | SM-J400M | J400MUBS7BTB3 | UNE | Pie(Android 9) | 2.44 GB | Download |
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