Go to Settings > About Phone > Software Information and tap Build Number seven times. Then, in Developer Options , enable USB Debugging and OEM Unlock . Recommended Professional Tools
: Select the SM-C7100 model, enter the IMEI in the repair tab, and follow the on-screen prompts to write the data to the phone's hardware. 3. Octoplus Box c7100 imei repair
For SN Writer and Miracle Box – no. For root-based methods – yes. Go to Settings > About Phone > Software
When IMEI becomes or mismatched, the device may fail to register on mobile networks, make calls, or use 4G data. in Developer Options