No. SIM lock is stored in a separate protected partition. Flashing will not remove carrier locks.
Try gsmhosting.com , xda-developers (feature phone section) , or contact Samsung’s local service center for offline service files. Samsung B310E Flash File Download
| Issue | Description | |-------|-------------| | | Phone restarts repeatedly without reaching the main screen. | | Stuck on Samsung logo | Hangs at startup indefinitely. | | Dead after wrong charger or OTA failure | No power, no vibration. | | FRP lock (Google account) | Not applicable on non-Android, but some variants have a simple user lock. | | Baseband unknown / No network | Software corruption deleting IMEI. | | Forgotten phone password | Hard reset via flash file is the only solution if recovery mode fails. | | "Insert SIM" even with valid SIM | Often resolved by reflashing NV data. | Try gsmhosting