Quectel Ec25 Change Imei May 2026

But if you receive an error like +CME ERROR: operation not allowed , you must first send:

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:

AT+CGSN=1 Example output:

+CGSN: 123456789012345 OK Or use:

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.

for AT+EGMR.

AT The module should reply:

Quectel Ec25 Change Imei May 2026

But if you receive an error like +CME ERROR: operation not allowed , you must first send:

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:

AT+CGSN=1 Example output:

+CGSN: 123456789012345 OK Or use:

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.

for AT+EGMR.

AT The module should reply:

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