Wired CarPlay Temporary/Intermittent glitch

[TimothyN]

I realise that I may be getting into geek world, but if anyone clever can advise:

Wired CarPlay stopped working. Wireless was fine, but, for reasons I won't go into unless you're really curious, I need it to work wired.

I went through the diagnostic steps as follows:

1. Moved the cable to the other USB port. I knew this was not going to work, but seemed a simple first step. Didn't work.
2. Reversed cable polarity both ends. Didn't work
3. Cleaned the cable. Didn't work
4. Swapped cable. Didn't work
5. Found old iPhone in a drawer. Swapped SIM into it. Plugged in original cable. A little bit of configuration (like enabling Siri ) Worked like a dream
6. Plugged in original iPhone. Worked like a dream
7. Put SIM back in original iPhone. Still works.

So it does now work, but with the original equipment and configuration.

This is obviously a result, but I don't like things which work, then don't work, but then after a random walk, work again. I'd like an explanation, so it doesn't just fall over again.

Any ideas?

 

[TimothyN]

This is driving me mad.

I have tried multiple cables, and it makes no difference.

It would appear that if I plug in my old iPhone 8, it works about 50% of the time and if I plug in the iPhone 12, it very rarely, if ever, works, though it does appear to work for about half a second, but if I plug in the 8, get it to work, then plug in the 12 immediately after, there is at least 50% chance that it will work.

Does no one have any ideas?

 

[SonosOne]

Not sure if any of this will help, but try all the points at the link.

Apple CarPlay keeps disconnecting - Apple Community

discussions.apple.com

Have you also tried, restarting the phone?

Vol up, Vol down, then press and hold the power button until the apple logo appears the let go?

 

[Black estate]

There was an apple 26 iOS update this week have you done that ?

 

[mazzie]

Had the issue of wired Carplay not starting or disconnecting midway. It has been more stable ever since I started connecting the cable only when the phone is unlocked.

Still have the issue of losing audio if an MG announcement comes on when wired Carplay is just started. I usually have to close and/or switch between apps before the audio returns.