Imei - Quectel Change

If you have a legitimate need—such as repairing a corrupted IMEI or matching a carrier‑locked SIM—use the steps in this guide with extreme caution. Always back up the original IMEI first, understand the legal implications in your country, and be aware that any mistake could permanently damage your module.

AT+CGSN AT+GSN AT+EGMR=0,7

– Switch to SIM-level identity (IMSI) rather than IMEI-based filtering. Carriers can configure this.

: Changing an IMEI is illegal in many jurisdictions (e.g., the UK and parts of Europe) as it is often associated with bypassing network blacklists or using stolen hardware. Warranty and Support : Quectel officially states that customers are not allowed quectel change imei

These modules are different. They do not support AT+EGMR .

This is the method most "quectel change imei" tutorials refer to. It works on many Qualcomm-based Quectel modules.

→ Add new port (the COM port for Quectel DIAG interface). If you have a legitimate need—such as repairing

Last updated: October 2025

Quectel modules expose multiple USB ports. Usually, the (e.g., /dev/ttyUSB2 on Linux or COMx on Windows) is used. 3. The AT Command Sequence (Example: EG25-G)

AT+CFUN=1,1 (reset the module)

tool while the module is connected to a PC via a USB-to-UART bridge. Why Do Users Change It?

The is a unique 15-digit number assigned to every cellular device, acting as its digital identity card on global networks. For developers, engineers, and network administrators using Quectel modules—such as the EC25, EG25-G, or RG500L—the question of how to modify or restore this identifier frequently arises.

On most Quectel modules, the IMEI written by AT+EGMR survives power cycles. However, certain firmware versions (e.g., on the RM520N‑GL) may revert to a previously stored IMEI if the factory reset command ( AT+QCFG="ResetFactory" ) is issued later. Carriers can configure this