The database listed below contains a list of all SAMSUNG Galaxy J1 4G firmware, divided by country and carrier. Pick the right CSC code to download the needed flash files with the correct region and network operator configuration. If you’re interested in reading more about network providers, please read about our CARRIER DATABASE. If you would like read the step by step instruction of firmware downloading click here: How to Download Official Samsung Firmware.
Select Region / CSC
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| CSC | Country | Carrier |
|---|---|---|
| ZTM |  Brazil |  TIM Brazil |
| ZVV | Brazil |  Vivo Brazil |
| COD |  Colombia |  Avantel Colombia |
| TPA |  Panama |  OPEN |
| UPO |  Paraguay | OPEN |
| TTT |  Trinidad and Tobago | OPEN |
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CHECK IMEI 
