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‎09-08-2017 09:57 PM

HP Recommended
Product: HP ProBook 4540s
Operating System: Microsoft Windows 7 (64-bit)

My QLB Controller stopped working, then worked again for a while, and now is not working again.

I tried downloading drivers for it from the hp website, but it did not help.
How could it be fixed?

Archived This topic has been archived. Information and links in this thread may no longer be available or relevant. If you have a question create a new topic by clicking here and select the appropriate board.
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