to verify. The screen spat back the new number. The Quectel EC25 hadn't moved an inch on the workbench, but in the eyes of every cellular tower in the city, the old device had died, and a new one had just been born.
A USB-to-TTL serial adapter (if not connecting directly via the module's native USB interface).
On many EC25 firmware revisions, Quectel provides a direct command to write the IMEI, typically protected by an access sequence. quectel ec25 change imei
for similar modules, but this often fails on the EC25 without specific firmware or manufacturer-unlocked states. Modem State
Various forums, including PINE64 , have indicated that on specific firmware versions, modification might be attempted, although success is not guaranteed. to verify
There are two main ways to interact with the EC25's identity: using through a serial terminal or fastboot for deeper system recovery. 1. Using AT Commands (Recommended for Repair)
The Quectel EC25 delivers maximum data rates of 150 Mbps downlink and 50 Mbps uplink. It features an integrated GNSS receiver and is designed for applications such as industrial routers, smart metering, video surveillance, and rugged mobile devices. A USB-to-TTL serial adapter (if not connecting directly
If the IMEI changes but reverts after a power cycle: