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Book Cat: it doesn't work on other people's laptops either, so I don't think it could be a problem at the laptop end.
I blew out the port carefully using a low pressure airline. There's no fluff (nor can I see any detached bits of tiny contacts inside there either).
Quoth: turning off anti-virus made no difference.
But Drive Manager? That at least takes me a step further forward. I opened the "Device Manager" (presumably that's the one) and under "USB Controller" one of them is flagged with a warning triangle and the words "Unknown USB Device: Device Descriptor Request Failed". If I rightclick on that, under "general" I get
Windows has stopped this device because it has reported problems. (Code 43)
A request for the USB device descriptor failed.
There are some details of the driver I can't cut and paste, though the driver number is 10.0.19041.488
And under "properties" I get this lot:
Device USB\VID_0000&PID_0002\6&db71ae5&0&4 was not migrated due to partial or ambiguous match.
Last Device Instance Id: USB\VID_1A40&PID_0101\6&1eb6a6e8&0&2
Class Guid: {36fc9e60-c465-11cf-8056-444553540000}
Location Path:
Migration Rank: 0xF000FFFFFFFFF122
Present: false
Status: 0xC0000719
This means nothing to me, but it's the only sign I've seen beyond the initial disappearing error message that anything is connected to the laptop. This right-click also suggests I might update the driver, but only by looking for something in the laptop, or doing it manually. Or uninstall it.
Do you have any suggestions?
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