Default help!!! tablet not going into recovery mode!

i have a versus touchtab 7v dc..two weeks ago it started to freeze at the bootscreen and wouldnt start..so i gave it to a mobile repair service...he said it had to be flashed with a new rom..now this guy put a cnm touchpad 7dc rom into it..of the wrong resolution...so my touch is not responsive anymore..and he refuses to do anything about it..i have somehow managed to root it with zhuodashi..but i can not get it into recovery mode to flash a rom...also the versus site is down and hosted on a different server without any support documentation...help me people..also i would be grateful if anyone can send me a link to the stock or any rom of 800x480 resolution...thanks alot