The International Mobile Equipment Identity (IMEI) is a unique 15-digit serial number assigned to every mobile device. It serves as a identifier for the device and is used by mobile network operators to authenticate and track devices on their networks. A damaged or lost IMEI can prevent your device from functioning properly, and you may experience issues such as:
| Issue | Solution | |-------|----------| | UMT not detecting phone | Reinstall Samsung drivers, try different USB port, disable driver signature enforcement (Windows). | | “Device not in Diag mode” | On J410F, dial *#0808# → select → reboot. | | Repair fails at “Writing certificates” | Ensure phone is in MTP mode with screen unlocked. Try using combination firmware. | | IMEI reverts after reboot | Flash full stock firmware (4 files) using Odin, then repeat repair. | j410f imei repair umt
If the tool fails to detect the phone, check your cable or try a different USB port. The International Mobile Equipment Identity (IMEI) is a