Select the RDA tab -> Choose "Write IMEI" -> Input numbers -> Click Start. Pros: High success rate and supports various boot pins. 3. Infinity-Box CM2RDA
IMEI repair is intended for restoring a device to its original factory state using the number printed on the device’s sticker. Changing an IMEI to a different number is illegal in many jurisdictions. Always use the original IMEI associated with the hardware.
Enter the 15-digit code found under your phone’s battery and hit . Restart the device immediately. Best Software Tools for Coolsand RDA Repair coolsand rda imei repair code best
For many RDA-based feature phones, you can access the engineering or IMEI write menu directly from the keypad.
For professionals, the CM2RDA module is the most stable. It can rebuild the security area of the phone without needing the original backup. Vital Troubleshooting Tips Select the RDA tab -> Choose "Write IMEI"
The IMEI (International Mobile Equipment Identity) is a unique 15-digit number used by networks to identify valid devices. On Coolsand/RDA devices, this information is stored in the . If this partition is corrupted, the phone will lose its ability to register on a cellular network, resulting in "Emergency Calls Only." The Best Coolsand RDA IMEI Repair Codes
The is a widely used chipset in budget-friendly feature phones and some older smartphone models. If you find your device displaying an "Invalid IMEI" error after a firmware flash or a factory reset, you likely need the specific service codes to restore its identity. Infinity-Box CM2RDA IMEI repair is intended for restoring
– While this usually just shows the IMEI, on some RDA firmware, pressing "Options" or "Edit" here allows for direct input. *#9646633# – Common for generic Chinese chipsets. *#8232# – Specific to certain RDA8851 models. *#3646633# – Standard MTK/RDA hybrid code. How to use the code: Open the Dialer/Keypad. Type the code carefully. Navigate to Para Set or Connectivity . Select IMEI or Write IMEI .
Ensure you have the RDA USB VCOM Drivers installed. Without these, your PC will not "see" the phone in repair mode.
If you write the IMEI and it still shows "Invalid," your NVRAM chip might be physically damaged or "Read-Only." Important Legal Notice