Quectel Change Imei -

Changing the IMEI on Quectel modules is a complex process often used for legitimate hardware repair, development testing, or ensuring compatibility with specific carrier regulations

Carriers maintain IMEI databases. If two modules broadcast the same IMEI simultaneously on the same network, the carrier may blacklist both devices permanently.

The old RDA chips are trivial to change.

For legitimate developers, the safest path is to never alter IMEIs outside of an authorized test environment with written permission from network authorities. Manufacturers like Quectel are increasingly releasing locked firmware variants that disable IMEI writing entirely. As IoT security matures, the era of casually changeable identifiers is ending.

import serial import time

For Dual Sim Phones * Rooted Android phone or tablet. * Install Android terminal emulator app. * Open android terminal emulator. * EC25EU LTE not working after update - Quectel Forums