On my Windows 7 laptop the USB3 port worked fine, from new, for about 6 months and then stopped working. It no longer recognises any USB devices but does have power as proven by inserting a USB mouse and observing it light up.
On the motherboard is a Fresco Logic (FL) 1000 PCIe - USB3 chip whose PnP Vendor code is 1B73 and its DEVICE code is 1000.
Enquiries to both the laptop and chip manufacturers have not born any useful suggestions as to go about fixing the problem. They did suggest that I revert the laptop to "Factory Settings" which I did, and it did not fix the problem (during the rebuild it did report one error which could be a side effect of the fault and the laptop manufacturer was not able to decode the error number for me).
In the Device Manager tree there is no hardware described as being of Fresco Logic origin but it does report a suspicious "PCI Express standard Root Port" which has a PCI address of 0,28,0 with no sub-device in the Dev Mgr tree.
I have googled and found many folk having identical fault scenarios on different laptop manufacturers all having the common issue involving the FL1000 chip. Only one person claims to have fixed his problem. I have tried applying all their fixes to no avail.
I cannot install the FL1000 driver as it reports "Fresco Logic USB3 Host Controller is not found!".
I concluded that the original Vendor/Device code 1B73/1000 has been changed to 8086/1c10 in the USB3 PCIe device registers and need to restore those registers back to 1B73/1000 before attempting to install the driver.
I am seeking advice advice on whether I am on the right track and pointers on how to go about completely removing the current driver, restoring the registers and replacing it with the original Fresco Logic driver.
Thanks in Anticipation