On your computer, launch 4uKey iPhone Unlocker and then hit the Start button to initiate the Unlock iPhone Screen feature.
Next, connect your iPhone to the computer via an active USB lightning. Then, read the notes listed on the 4uKey interface. Click Next if you accept the conditions.
On the new screen, if 4uKey fails to detect your locked iPhone in the first place, it will display the tutorial for you to make the connection work. Follow it and complete the setup.
When 4uKey detects your iPhone, it will display the basic information of the device like iOS version, phone model, etc. Also, it will ask you to download the firmware that will later come to effect on unlocking your iPhone.
The download will be done in a few minutes and after that, 4uKey will prompt you to start the unlock right away. Simply move the cursor to the Start Remove button and hit it.
4uKey will start to erase the lock screen on your iPhone and a White Apple screen will show up on the Apple mobile. Within minutes, the unlock will be successfully done and the iPhone is now powered off.
Simply turn it on and it’s unlocked. You can now connect it to the computer again and no Trust This Computer will pop out.