There seems to be a severe lack of knowledge here so as the reigning expert on the Google forums regarding Blackberry devices (yes, you can look me up) and my wife and I covering the Z10 with OS version10.2, Q10 with the latest OS10.1, Bold 9900 with OS7, Torch with OS6 and 8310 with OS4 I'll try sorting this out.
After three attempts any of the BB10's will ask for "blackberry" to be inserted as the clearance to allow another password attempt. If that isn't put in then it will commence to lock the phone. I made the mistake once of trying to put in the actual password because I did not read the screen properly. Luckily you have more than one chance to type it in correctly.
Anonymous Coward should read this part
Backups are available from the Blackberry Link including previous devices by choosing Restore from the Blackberry Link and when it only shows the latest four use the scroll bar to the right hand side of the little block and scroll down to find "Legacy Devices Backup Files" and click on it so you can restore from a previous device.
If you still don't believe the files are there or you want to see what is in them then install Blackberry Backup Extractor from http://www.blackberryconverter.com/ which will find all the files on a pc.
Any further problems please come visit me in the Google Forums http://productforums.google.com/forum/#!categories/mobile/blackberry-devices and I'll try to help.