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if you mean to wipe data / factory reset, nothing happens, I can not move the volume key on the recovery.I don't know how to restore those files for you 7034 cos it's a telechip Tablet. So I would advise to just restore your backup. I assume you've got root and have a access to the recovery.
Ps. have you just tried to reset it? Sometimes it works.
ok then publish in development, Thanks.Apparently you're missing bootloader.img. Either it didn't get generated when you made the dump, or the Telechips models don't use it. Until you find out whether you are supposed to have one or not, don't attempt to restore the tablet or you may brick it. Should you find out you have everything you need, very carefully read the sticky posts in Generation 3 Development. An easy way to get there is to click the link in my signature regarding rooting.