How to Fix “Unlock iPhone to Use Accessories” USB Message

If you have connected an iPhone, iPad, or iPod touch to a USB accessory, or even a Mac or PC lately, you may have seen an “USB Accessory – Unlock iPhone to use accessories” message appear on the screen (or “Unlock iPad to use accessories” for iPad of course).
This message appears on screen due to a new security feature introduced in iOS, which aims to better protect iPhone and iPad from unauthorized access attempts by USB connections. This is mostly a good thing, but until you approve the USB accessory and unlock the iOS device, you may find that the iPhone or iPad won’t communicate with the USB accessory, or it might not even charge.















