The Most Common Reason Why Your iPhone Won’t Connect To iTunes On Your PC If you have a Mac, you can skip right to the section about what to do when your iPhone won’t connect to iTunes on your Mac. I’ll start by showing you how to fix this problem on PCs running Windows. USB ports can wear out too, and sometimes using a different port is enough to solve this problem.įrom this point on, the fixes are different for Mac and PC. If you’re shopping in a store, look for the “Made for iPhone” logo on the box-that means the cable is MFi-certified.Īfter you’ve verified that your Lightning cable works, try plugging your iPhone into another USB port on your computer. Have you ever seen “This cable or accessory is not certified and may not work reliably with this iPhone.” pop up on your iPhone? That means the cable is not MFi certified and may not be high-quality.Īmazon sells great MFi-certified iPhone cables that are about half as expensive as Apple’s.

When a company applies for MFi certification from Apple, they are given the high-quality specifications and a unique identification chip for that specific cable. High-quality Lightning cables are MFi -certified.