Unlocking of Alcatel X602 is possible by NCK if the device is asking for NCK / SIMlock code after changing the SIM card. Once the modem is unlocked, you can use any network provider SIM card as well as the default. SIM unlock is one-time work, but you can enjoy forever.
How to unlock Alcatel X602?
1. Change the SIM card with any another network provider.
2. Connect to PC USB port.
3. Open My Computer >> Virtual CD-ROM.
4. Install in PC.
5. Now open the software of Alcatel X602 dongle.
6. It will ask for NCK / SIMlock / unlock code.
7. Enter the 10-digit code which is provided by routerunlock.com.
8. Now your modem is unlocked.
Create a new profile and connect to the internet.