Iphone 14 pro cannot charge using mfi lightning otg after upgrading to ios 27

Hi, i am using mopai kt393 which is listed on apple mfi devices list in web. My phone is 14 pro(ios 27) and cannot be charged via mopai kt393. I tried to use another phones : 14 pro(ios 18), 13 basic(ios 26), they were charged normally. Is this a bug of ios27? or new rules on ios 27? or mopai kt393 is actually not a mfi device? Anyone has this issue too?

Hi, I am using mopai kt393 which is listed on the Apple MFi devices list on the web. My phone is a 14 Pro(iOS 27) and cannot be charged via Mopai KT393.

What actually happens when you plug the device in? Do you get a warning about the accessory being uncertified, or does "nothing" happen? Also, is your phone able to charge through other sources? Finally, have you tried restarting the device?

Expanding on that last point, one thing I've seen a few different times going back 15+ years [1] is that if the right components crash in just the right way, it can leave the device in a state where it can't properly initialize the USB bus when you plug in the charging cable, leaving it without the ability to charge. All of these were resolved by rebooting.

[1] This isn't because there's a bug we've been ignoring. What's actually happening is that we fix a given bug, then a mistake a few years later, often in an entirely different component, ends up creating a failure that "looks" exactly the same. So there isn't any single bug, but a long sequence of unrelated issues that happen to end up looking similar.

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Kevin Elliott
DTS Engineer, CoreOS/Hardware

Iphone 14 pro cannot charge using mfi lightning otg after upgrading to ios 27
 
 
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