Quectel Change Imei 'link' Online

AT+EGMR=1,7,"<original_IMEI>"

However, developers and system integrators frequently search for a specific, sensitive command:

After a power cycle, the new IMEI should become active.

| Error | Solution | | :--- | :--- | | ERROR | Unlock with AT+QPRTPARA=1 first. Or module is SIMlocked. | | CME ERROR: 13 | SIM failure – Insert a valid SIM card. Some modules require a SIM to write IMEI. | | CME ERROR: 3 | Operation not allowed. You need the DIAG port method (Part 5). | | +CME ERROR: 100 | Unknown command. Use AT+CGMR to check firmware; update to latest OEM version. | quectel change imei

QPST/Qualcomm tools (for Qualcomm-based Quectel modules)

Changing the IMEI on Quectel modules is a complex process often used for legitimate hardware repair, development testing, or ensuring compatibility with specific carrier regulations

Carriers maintain IMEI databases. If two modules broadcast the same IMEI simultaneously on the same network, the carrier may blacklist both devices permanently. | | CME ERROR: 13 | SIM failure – Insert a valid SIM card

The is a unique 15-digit number assigned to every cellular device, acting as its digital fingerprint. It allows network operators to identify, track, and manage devices on their network.

This returns the current 15-digit numeric string stored in the module. AT+EGMR=1,7,"123456789012345" Use code with caution.

Use legitimate network management tools to monitor and control data consumption [3]. You need the DIAG port method (Part 5)

AT+EGMR=1,7,"<your_new_15_digit_IMEI>"

If an IMEI is modified to an invalid string or a number that does not match the strict Type Allocation Code (TAC) properties required by the network carrier, the cell tower will reject the device during the IMSI attach procedure.