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

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