Phone stuck on lock screen - enter PIN and then nothing

[Chippy569]

I just had a "Critical Update" and updated to 10.0.12562.84 - everything more or less seemed to go okay. Left it on and charging over night... go to grab my phone this morning and I wake it up, enter my pin, and....... nothing. it stays on the screen with the PIN with the 6 digits entered. if I let it sit long enough it just goes back to sleep - waking it up asks for the PIN again. I can't even connect it to WP for Mac. Help?

 

[Zulfigar]

This is a known issue, don't do anything with the phone for a couple hours and let it do it's thing.

 

[blazzr]

Tap the screen to the right of the "Enter PIN" notice / masked PIN numbers. Seems the "OK" button is invisible :b