Download file: http://sh.st/UcytI
Extract with 7zip or Winrar.
Run exe file, shutdown phone or remove blackberry battery and put back and connect phone to computer
(Note EXE is Q10 auto loader but it work with all version of Blackberry 10.)
Once finished Blackberry Protect will be removed
You might need to reload phone OS in some case. Don't worry. You can use Blackberry LINK or download autoloaders
Autoloaders: http://sh.st/UcdqK