You can replace it with MOBİLE UNCLE TOOLS . enter youtube and watch;
watch?v=3uFpVU9xdF0&t=5s
Just note,
Add space after AT
for sim 1;
AT +egmr=1,7,"imei"
Send command, when you see OK, restart the phone and look for imei *#06# .if it not successed, try "AT+ EGMR"
For sim 2;
AT...