I did 2 software updates (2.01.358-2.10.560) both of them was approximately 470-500 MB. But the the update packages are still stored in my 16gb playbook and they keep 1 gb memory how can I delete them? Thanks in advance.
Connect to desktop software. Simply connecting to it had solved the problem for one member here. If that doesn't fix it a reload of the OS with a debrick always does.
Debrick. Turn off PlayBook, connect USB cable, you'll see a dialog box pop up, quickly click update, then yes again on the dialog about repairing. It'll erase everything so make sure you back up prior to doing this.