Before attempting a repair, verify the current status of the device:
: Connect the phone to your PC via ADB mode with USB Debugging enabled. Select Model : Open your service tool (e.g., Chimera) and select the Initiate Repair : Navigate to the tab and select "IMEI Repair". Input Data c7100 imei repair
Here are the top 3 reasons your C7100 IMEI became invalid: Before attempting a repair, verify the current status
typically involves software restoration using professional service tools like ChimeraTool or Z3X Samsung Tool . This process is generally used when the IMEI becomes "Null" or "000000" due to software corruption or failed firmware updates. This process is generally used when the IMEI
This is the classic symptom of a corrupted IMEI (International Mobile Equipment Identity) partition. Without a valid IMEI, your device is essentially a Wi-Fi-only tablet. It cannot make calls, send texts, or use mobile data.