Quectel Ec25: Change Imei

If you lost it and need a full factory reset (including erasing all NV changes), you would need Quectel’s proprietary QFirehose tool and a full flash dump—generally not available to end users. The Quectel EC25 allows IMEI modification via AT+EGMR=1,7,"your_15_digit_imei" in 95% of development modules . For carrier-locked or production-locked units, it is either impossible or requires privileged authorization.

Make a note of this number. You may need to restore it later. Some EC25 modules ship with IMEI write-protection enabled. To disable it temporarily, you may need the "IMEI unlock password" from Quectel (usually available only to verified OEM customers). However, for most standard EC25 modules: quectel ec25 change imei

Then recheck:

AT+CGSN=1 Example output:

OK If not, check power, wiring, and drivers. Always check the existing IMEI before making changes. Use: If you lost it and need a full

AT+QPRTPARA=3 Or