My sony vaio fingerprint sensor no longer responds when I scan over it. Any design how to clear it work again?

For 6 weeks since clean, I have be using the fingerprint sensor on my Vaio SZ to store logins and passwords on web page. Usually, when you scan your finger over it, it opens a menu on the peak listing adjectives the saved page. I have not changed anything but very soon it doesnt respond when I scan my finger. When I run a test contained by the diagnostic screen, it scan fine. The model is a Touchchip. Is there any instrument I might have disabled it minus realising.

Any help appreciated.

Answer:
u may involve to download some new software for it.
try usin a adjectives swab dipped in some rubbing alcohol to verbs dirt and smudges off the sensors along next to anything else that looks contaminated in any bearing, good luck

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