You need to change the ICCID code to unlock iPhone iOS11.2 or any other version. Here is 3 steps for you to go with this:
1. Put your Q-SIM inside the SIM tray and dial *5005*7672*00# ;
2. Select Input ICCID from the menu;
3. Input the ICCID for unlock.
Please note the ICCID will be different from the video.
Reference Video for your reference:


