? It is strongly recommended that you have at least 1 GB of free space available on the iPhone or iPad. If you find that your available space is below this limit, consider freeing up some space on your device. To help you do this, we wrote a guide on how to optimize iPhone storage. This is why we strongly recommend that, before going on to the other solutions presented below, you check the storage space on your device by going to Settings> General> iPhone Storage. We already know that one of the most common causes for the error is lack of space on the iOS device when converting HEIF / HEVC photos and videos.
Suddenly, the system does not understand what is happening … and that triggers an error. Why? Well, if there is not enough memory then there is not enough space to save converted files on the iOS device before transferring them to the PC. Numerous tests carried out on iOS devices have demonstrated: the error very often occurs when there is no free space on the iPhone or iPad. However, it is during this real-time conversion that the notorious error “A device attached to the system does not work correctly” can occur. This is why, when you copy your HEIF or HEVC files to a PC, they are automatically converted to JPEG and H.264 formats.
On the other hand, they are still much less widespread outside the Apple universe and are not compatible with Windows without special codecs. These formats offer the same or better quality than JPEG and H.264 while taking up to 50% less space. If you are interested in what they are, see what Apple has to say about them. In fact, for a long time (starting from iOS 11 and iPhone 7), the default formats for Apple’s images and videos have been HEIF and HEVC respectively. Once it is done, reconnect your iOS device to the PC, preferably using a different USB port and a different cable (see more about ports and cables below).įirst things first, let’s take a closer look at the most common causes for this error. If there are other USB devices connected to your computer at the same time, unplug them as well. To prevent this, disconnect your iPhone or iPad from the PC. In some cases, the error can occur because of a connectivity issue between the USB device (in this case, your iPhone) and the PC.
Transfer photos from iPhone to PC via CopyTrans Photo This point-by-point guide will explain what to do if you see this error. The error can occur due to several reasons but rest assured: it is a fairly common problem that can be fixed quite easily. What does this message mean? It means there is a connectivity issue between the PC and the connected iOS device, and Windows assumes that the device (iPhone or iPad) is not accessible.
You connect your iPhone to the PC, but suddenly there is an error message that runs: “A device attached to the system is not functioning”. You have taken superb photos with your iPhone and want to copy them to the PC to view them on a large screen.