: Modification may fail if the module is connected via certain WAN interfaces. Disconnect external ethernet or network cables during the process. 2. Fastboot Method (For Advanced Recovery)
If the IMEI was lost due to a catastrophic firmware flash (e.g., using the -e argument in QFirehose), a deeper fix may be required: Enter using AT+QFASTBOOT . Use the command fastboot oem fix_imei [YOUR_IMEI] . Continue booting with fastboot continue . Legal and Ethical Considerations Before proceeding, it is critical to understand the risks: Instructions to change the IMEI - PinePhone - PINE64 Forum quectel ec25 change imei
: This often occurs if the modem is actively managed by a service. On Linux systems, stop the ModemManager service before sending commands. : Modification may fail if the module is
The most direct method is using the AT+EGMR command via a serial terminal (like PuTTY or MobaXterm ). Fastboot Method (For Advanced Recovery) If the IMEI
: Send AT+CGSN or AT+EGMR=0,7 to verify the current number. Update IMEI : Send AT+EGMR=1,7,"YOUR_NEW_IMEI" .