Well my mums phone broke and I went to reinstall the OS, No such luck. Theres a constant red light on the front cover and when you open it you get a small loading bar and then it turns off. Previously I would get this error 574 or something, and it said reset.
I have no idea how this happened; but long story short I need help =\ I thought about sending back for a new once since im under warranty but my mom wants to make sure theres no other options
This happened to me but I did not need to use a special app to fix... simply deleted the vendor.xml in common files, blackberry, apploader folder and then it auto reinstalled OS I was on and it worked again... but to each their own.