Tablet hcl me u1 tab can't format, factory reset

hi
at first excuse me for my bad english
I've hcl me u1 tab it started to show error message about apps , i tried to factory reset but
it is only make a default restart without any thing different , the next try was from the recovery
and it also dosn't work it shows that every step has been done but after restarting the tab i found that nothing changed
i tried to root but i cant copy or move any files to sd it's only shows that any files copied successfully and i didnt find any of them on the sd