If the phone isn’t recognized by iTunes, move to the next solution. Disconnect your device, and connect it to another USB port. This can be the one-off answer for it as many times just trying out a different USB port solves the problem somewhat. A Viable Solution – Use Different USB port If the problem is not resolved after the reboot, then move to the next solution to fix iPhone driver issues on your Windows PC. The first and foremost step would be to reboot both your Windows PC and iPhone so see if the problem is solved or not.