iPhone X "A device attached to the system is not functioning"

Hey Jacob!

I had this same issue to and tried this out and videos for me are able to be transferred to my PC from Iphone X now

Try This:

Settings > Photos > Where it says "Transfer to Mac or PC" Select "Keep Originals"

Hope it helps man!

- Alec

The biggest problem with this fix is that it turns off the automatic conversion tool for the movie files. The iPhone now uses a file format called .heic by default (unless you turn this feature off) to compress the file size more. The issue with that file format is that a lot of programs are not compatible with it yet. However, if you leave the "Transfer to Mac or PC" option on automatic it will convert your .heic files to a .mov usable file. I'm sure in the near future everything will support .heic files naively but as of now that is not the case.

The biggest downfall with keeping that feature on automatic is the conversion tool crashes like crazy and it's very slow. There is 3rd party conversion tools out there for .heic to .mov or .mp4 but they as of now there terrible and slow. I've been SUPER frustrated with apple over this issue too. I just want to backup my files to my computer and be done with it but it's not that easy!

Why when set to automatic, the photo can convert to Jpeg in PC..normal video can be imported BUT time lapse video will crash?

If set to Keep original, the photo will import as HECI and time lapse video can be download ..

What software do i need to convert the HEIC to JPEG.

I transferred my 14 videos to Google drive and then downloaded them to my Windows PC via browser.

Worked very well.

Alec, I just wanted to say you are a genius. But you probably knew that already. I've been struggling with this for quite some time now and could never figure it out. Who knew it'd be such a simple setting in your phone to resolve this all.

I thought maybe it was Windows, maybe it was a faulty lightning cable so I tried multiple, or a bad USB port, or a bad driver. Tried what I thought was everything.

I have the 256GB iPhone X and record a lot of 4K 30FPS footage, and I've had the constant struggle exactly as described by OP. I gave up until I finally found this thread.

You are a life saver. Thank you Alec!

With my iPhone X I am with those having the video codec issue after trying the "Keep Originals" setting. The only video player I have that can support the new HEIC format is VLC Player, but I need it for other video editing software tools which do not recognize this. So I am painstakingly stuck having to use the "Automatic" setting which does the conversion to a standard MOV format that these other tools can recognize. This is a hit or miss, and I would say like 95% a miss. I keep re-plugging in the drive and once is a while it may work and start copying over. Other times it's just 100% fail all the time, then I try restarting the iPhone which only sometimes helps. I go to music events that record numbers of large GB size files and it's a drag trying to pull these off this iPhone. I am always now reluctant to record these events with the iPhone but sometimes I don't have a choice.

Why can't Apple just make the auto-conversion a simple smooth process. Do they just hate those that use Windows systems and don't give a hoot, as long as it works for those with MACs it's good enough?

Back to trying now to pull out a 3GB video file I've been stuck on for over an hours of tries :(

Automatic = iPhone would show HEIC file (the format it saves pictures that it takes) as JPEG so that we could see the pictures on PC as Windows 10 doesn't support this new (and more efficient) picture file format.

Keep originals = iPhone would show HEIC file as HEIC file, and you could still copy them, but just that you can't see them on PC.

I think this applies to the video format as well.

https://www.theverge.com/2017/9/19/16332192/apple-ios-11-heic-iphone-image-format

What kind of video player do you use? I use VLC Player and it worked perfectly fine, however the problem occurred when I tried to import the .MOV file to Adobe Premiere CC. But i found the solution by rename the file .MOV to .M4V

You can try it too to see if it is working 🙂

This doesn’t help me. Still showing “A Device attached to the system is not functioning.” I’m transferring photos and Videos from my iPhone 8 Plus to WINDOWS PC.

One more thing I noticed. When I connect my iPhone to PC and open photo folder, iPhone Storage used memory keep increasing without doing anything.

Hey regarding the issue with transfering pics and vids, i did that and it worked. However, some of the videos that transfered over would not play the video part, it only plays the audio of the video. I tried opening it with another video player and it said video is not encoded. I have an iphone 7 plus and a PC. *** I never had an issue until the recent update i did. Are u having the same issue?
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Correct this is an old solution that doesn't help me. I have to keep mine at Automatic so Premiere can play the video along with the audio.

I just keep re-plugging the the phone into the computer and eventually its able to copy over. It works when the files aren't large.

It's funny that you don't have this problem when moving them over to a MAC?

Excellent, this not only fixed the problem, but doubled the copying speed; but as someone else commented, don't forget to restart your iPhone after changing the setting............ Thanks very much...............;-)))))))

Hey!

Thank you so much! Now working. You are the solution!

Thanks alot