I try del files by File Manager, it says "file deleted" but when I reboot it doesnt still del.
Then I try to del and copy file from PC to my P970 by connecting to PC (and also try to format by PC), its also say "successful". But when I reboot, it has no change(.
I try to format by privacy in setting, but it says "invalid path: null".
And for it in Recovery, it says "done" but in fact it doesnt erase.(