ZTE MF60 modem detect and unlock procedure
Install MF60 Drivers
Launch DC-Unlocker client software.
Go to server tab, enter username and password, click "Check login". (If you do not have username for DC-Unlocker software, you can buy credits to receive it: www.dc-unlocker.com/buy)
If DC-Unlocker/Vygis/Rocker/Infinity dongle is connected, do not enter username and password, only click "Check login".
Select manufacturer: ZTE modems, model leave Auto detect (recommended).
Press detect button (Big magnifying glass).
Wait till DC-Unlocker fully detects modem.
If you get "modem not found" error message, run DC-Unlocker as Administrator and perform detection again. Make sure drivers of the device are installed as well - ZTE MF60 Drivers.
Right click on DC-Unlocker icon and select "Run as.." or "Run as administrator" from options menu to launch software with administrator rights
Open unlock tab and press unlock.
Wait till you see a message that modem is unlocked.
After you see that modem is successfully unlocked, remove battery and restart modem.
Note: if battery indicator is missing after unlocking device check procedure to repair it here