Coolsand Rda Imei Repair Code Best [upd] Jun 2026

These chipsets are commonly found in:

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.

If you handle complex Coolsand RDA repairs (e.g., after a full flash erase or hardware reballing), the best solution is a commercial dongle. The top choices are:

If dialer codes do not work, professional technicians typically use the following tools: Miracle Box : Widely recognized for supporting Coolsand/RDA CPU tasks, including password resets and IMEI repairs. ChimeraTool coolsand rda imei repair code best

Ensure you have the RDA USB VCOM Drivers installed. Without these, your PC will not "see" the phone in repair mode.

Select the RDA tab -> Choose "Write IMEI" -> Input numbers -> Click Start. Pros: High success rate and supports various boot pins. 3. Infinity-Box CM2RDA

Select the "RDA" tab, choose "IMEI Repair," and connect the device. 3. CM2 (Infinity Chinese Miracle 2) These chipsets are commonly found in: The is

This is the for RDA/Coolsand chips (interchangeably called the "RDA Firmware Writer Tool").

Select the "Write IMEI" or "IMEI Edit" option.

Volcano Box and its updated software suite, Inferno, are legendary within the mobile repair industry for handling legacy Chinese chipsets. The top choices are: If dialer codes do

Miracle Box is one of the most versatile multi-chipset servicing tools available. Open Miracle Box →right arrow Select the RDA/Coolsand tab →right arrow Check the Repair IMEI box →right arrow Input the original numbers →right arrow Click Start →right arrow

Input your IMEI, connect the phone (usually in boot mode by holding the center button or volume down), and click "Start." B. Aladdin Tool

Check the box next to IMEI (Switches) or press Ctrl + M on your keyboard to unlock hidden IMEI write options.

or a serial terminal), the following commands are used to write new numbers: AT+EGMR=1,7,"[NEW_IMEI_HERE]" AT+EGMR=1,10,"[NEW_IMEI_HERE]"

Ensure your computer's Device Manager detects the phone as a COM port when plugged in. 2. Configure the Service Tool