China Keypad Mobile Imei Repair Tool 【2025】

The IMEI is a unique 15-digit number used to identify a device on a mobile network. If a phone displays "Invalid SIM," "Emergency Calls Only," or shows a generic IMEI such as 135790246811222, the device cannot connect to a cellular network.

On China keypad phones, this issue often arises due to: china keypad mobile imei repair tool

Understanding the root cause helps in prevention. The top reasons include: The IMEI is a unique 15-digit number used

Once the IMEI is null, networks reject the device. The only cure is a dedicated repair tool. Once the IMEI is null, networks reject the device

Originally for Android smartphones, but works perfectly for MediaTek feature phones when configured correctly.

| Feature | Benefit | |---------|---------| | Supports MTK / Spreadtrum / RDA chips | Covers 90% of China keypad phones | | No need for hardware dongle (in some tools) | Low-cost or free solution | | Write single or dual IMEI | Repair both SIM slots | | Backup & restore NVRAM | Prevent future IMEI loss | | Read device info (Baseband, version) | Diagnose before writing | | Repair via USB, COM port, or Bluetooth | Flexible connection options |