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

I have been trying to transfer videos from my iPhone to my PC for hours and have not been able to do so because of this error message. Mentioned in the title of this post. I have tried multiple USB ports on my computer and I get lucky sometimes where I'm able to transfer one video or picture over but when that one is finished and I try to transfer another it stops working and the error message pops up again. The windows photo app doesn't even work. It pretty much says the same error message. I tried transferring videos to a mac and it worked just fine. I'm getting frustrated because it's beginning to seem like Apple makes using an iPhone with a PC complicated and buggy on purpose. If it works fine on a mac but not a pc, that's something to question. I don't think this error has anything to do with my computer because I am able to do updates, back up my iPhone, things like that without a problem. Its only when I try to transfer videos is when I get this error message. I've been transferring videos from my iPhone's to my pc for years, the same way without a problem. Its only when I got the X have I been having this issue. Any ideas?

iPhone X, iOS 11.3.1, null

Posted on Apr 25, 2018 7:41 PM

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Question marked as Top-ranking reply

Posted on Apr 29, 2018 12:50 AM

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

37 replies

Feb 14, 2019 10:19 AM in response to mordant_ug

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

Feb 23, 2019 6:43 PM in response to Alecqz

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!


Mar 25, 2019 6:04 PM in response to PlebSlayer

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 :(

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

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