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.
– (Most Common) This opens the full engineering mode. coolsand rda imei repair code best
Enter the 15-digit code found under your phone’s battery and hit . Restart the device immediately. Best Software Tools for Coolsand RDA Repair The is a widely used chipset in budget-friendly
If the keypad codes do not work (which happens if the manufacturer has disabled the Engineer Mode), you will need to use a PC-based tool via a USB data cable. 1. RDA Service Tool (Free) coolsand rda imei repair code best