When I first got my blackberry 8820 I entered my password to unlock it & it worked no problem.

However!! the next day it would not accept my password or so I thought.

After lots of stress & re-setting etc etc I finally discovered that if I pressed the delete key "del" each time before entering my password it worked no problems.

Hopefully by doing this it will save you all the stress I went through.

I apologise if this tip has been given before but I could not find it in any previous posts.

Please tell me if this helped you.