Unlock / Crack ZTE MF831 or MF833V 4G Modem
1. Insert an unaccepted sim-card in your ZTE MF831 / MF833V 4G Modem. (unaccepted means from a different network than the original one)
2. Connect the ZTE MF831 / MF833V 4G Modem to the PC and install it software
3. Open ZTE MF831 / MF833V 4G Modem software on the desktop
4. Message to enter a network unlock code should appear
5. Enter the 16 digits network unlock code provided by "EGGBONE UNLOCKING GROUP"
6. Create a new profile according to the new SIM card and connect to the internet.