How to change imei via terminal?

Question

Android

There is a phone on lolipop 5.1 Meizu M3s mini. You need to change the IMEI through the terminal. I tried echo 'AT+ EGMR=1,7,123456789123450' > /dev/pttycmd1 with both smd11 and smd0, and put * or ? instead of commas, but all attempts are in vain. Through the engineering menu, it changes with this command AT + EGMR = 1,7,123456789123450.

Answer 1

echo 'AT+EGMR=1,7,"xxx"' >/dev/radio/pttycmd1