According to the case of the imei change, there is a company that carries it out and it is not possible to compete with that company but we discovered that they change the imei’s to be able to occupy a residential SIM that is anchored to another device.
The devices that can be configured to change the IMEI are the following:
-RUTX11
-RUTX12
-TRB500
-RUT950
-RUT955
-RUT240
-RUT360
The firmware version used to change the IMEI is the following
00.07.02.4_WEBUI.bin
I hope you will support me in correcting this problem and forcing compliance with global standards since changing the IMEI is not legal in any country.