Dear mr.
binshad,
1.
MKEY-Modem Unlock Key is one and only standalone solution for Modem Unlocking....
2. No need any unlocking procedure -> Select PC UI Port then Press Unlocking Done..
3. DC-Unlocker need internet connection for unlocking modems...
and login,password,server errors bla,bla,bla........
4. If modem not working then write NVM of another working modem..
BR.