Thinkpads Forum

The one that comes with Windows Update or Windows Install from Microsoft, it's the wrong one. As a result device get disconnected when you move them around -- you might even think the connector is bad. I was even thrown off, looking at connector under microscope, it looked good, but devices would disconnect when I moved the cable.

There is a two part problem. First the driver. Then there is firmware that needs to be updated on the controller, I'll write about it after I figure it out. Here is the driver

https://drive.google.com/file/d/1rguWOs ... sp=sharing
2014-03-Plugable-Renesas-USB-3.0-200-2.1.39.0.zip

Here is the firmware.

https://drive.google.com/file/d/19vTAq1 ... sp=sharing

Here are instructions https://winraid.level1techs.com/t/guide ... ware/30597

In a gist. from within x64 folder. file old.mem is backup of firmware that comes on W520. File F402103.mem is the new firmware. cfg.ini is already modified.
What you do is this

w200fw36 /srom ?

This will give you Bus, Device, Function, which you will use in the next command.
Then you do this

w200fw36 /srom 0 /address ??-??-?? /write F402103.mem cfg.ini
Where address you stick from the command above.

You can also do this prior to doing all that above
w200fw36 /srom 0 /dump back_up_file_name.mem

To backup your old firmware... If you want.



But anyway.. After you done you reboot and you reinstall the driver from the message above.


This solves situation where moving USB cable disconnects the device -- as if the USB connector is bad, which is not true, it is not bad.. Plus other problems where USB 3 does not work properly in some situations.