Unlocking of Alcatel L850 is now possible with NCK code. If your modem is asking for unlock code after changing the SIM card, then it can be easily unlocked. Once Alcatel L850 is unlocked, you can use any another network provider SIM card as well as default.
How to Unlock Alcatel one touch 4g L850?
1. Change the default SIM card with any another network provider SIM card and connect to the computer with WiFi or USB.
2. It should automatically open the unlocking page as above screenshot if not then check NCK window under Connection.
Note: When device prompt for login details, input the admin username as password.
3. Enter here correct 10-digit NCK code which is provided by routerunlock.com and click on Apply button.
Once the code is accepted, the Alcatel one touch 4G L850 will be unlocked forever. Now, create a new profile according to the new SIM and enjoy the internet.
Note II: Don’t try any free or wrong code in Alcatel L850, otherwise it will be locked permanently.