If you are trying to play music from a USB stick and the screen says "invalid" or "not recognized," it is likely a formatting issue.
: This is often the specific fuse responsible for the USB and 12V circuits in the Partner.
The 2017 infotainment system is sensitive to the type of cable used.
: If your radio is also dead, it’s a near-certain sign that a shared fuse has blown.
: Generic "charge-only" cables often fail to transfer data. Using the manufacturer's original cable is highly recommended.
If the port provides no power at all, a blown fuse is the most likely culprit.
: Consult your Peugeot Partner Handbook to find the fuse box (usually under the steering wheel) and replace F9 with one of the same amperage. 2. Verify Your Cable and Device