This is the only legitimate reason. Sometimes, a failed firmware update or a hardware glitch corrupts the IMEI to 000000000000000 or 123456789012345 . A phone with a corrupted IMEI cannot register on a cellular network. In this specific case, restoring the original IMEI (the one printed on the phone’s sticker) is legal and necessary.
is the universal code to view your IMEI, not change it. nokia 1200 imei change code
A common issue with old Nokia phones is . If you dial *#06# and see "Null," "Invalid," or "??????????????," the NV-RAM has been corrupted (often by a dead battery during software update or a failed flash). Users search for a "change code" to repair the IMEI back to its original state. This is the only semi-legitimate reason. This is the only legitimate reason
On the Nokia 1200, the IMEI is hard-coded into the phone's hardware (the UEM chip) and synchronized with the flash memory. Because it is a DCT4+ device, changing the IMEI typically involves: Specialized Boxes : Using service hardware like the Cyclone Box In this specific case, restoring the original IMEI
Because IMEI changing is the primary method used for:
Access hidden menus for hardware testing but lack the permissions to alter the IMEI.