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XPS 15 9570, 1909, fingerprint reader and pin problem

My Dell 9570 was working perfectly. But then when days ago, the Windows 10 was updated to 1909 version, the fingerprint driver stopped working like before. It can still recognize, but then asks for PIN. Yet then, shows "PIN is not available". In the setting, the PIN is all set. Really do not know what to do. BIOS and Fingerprint driver all updated and installed well. Already tried Restart-F2-Intel....-Enabled procedure, also.

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