CD400 USB Port failed

[Jsmitty]

Hey all,

I have an astra J with the CD 400 plus system that the USB port recently stopped recognising my USB stick. It happened after it sat at a garage for a while, so the battery probably died at one point. The port does still charge my phone if I plug it in.

The aux cable works OK now, but was occasionally dropping out before causing faults on the radio module (in screenshot).

The PDIM was showing a low voltage error occasionally, and the autel showed 11.3V on that module, with 12.7V at the radio module, but I have tried replacing the module with one from a breakers with no luck.

Occasionally on first ignition switch on, pressing the aux will show "no supported data found" and the scanner shows the PDIM recognises it as a drive, but then won't play anything.

It's the exact same issue with both mine and the breakers module, so unless I got unlucky and got a failed one, it's not that.

Any ideas where to look next?
Thanks

[Rusty2009]

Change the USB socket.

Buy new if you can source one.

[Jsmitty]

Change the USB socket.

Buy new if you can source one.

This appears to have made the USB stick visible to the car, but now I just get "No supported data found, you can safely remove the device" every time instead of playback. I've tried FAT32 with 64k, 32K, and 16K cluster sizes, NTFS, even ExFAT on two different USB sticks to no avail. Ive tried having the mp3 both in a folder, and just on the sticks as well.

[Rusty2009]

IIRC max size is 32GB exfat

[Jsmitty]

IIRC max size is 32GB exfat

No luck. Part of my confusion is that I had an exfat formatted 64GB stick working before, even thought all the manuals i can find say 32GB, efat or FAT32 with a cluster size of 64k or less. but then after I got it back from the garage it doesn't work.