You will have to change out the entire mainboard, found [http://www.impactcomputers.com/t77n250t00-lf.html|'''HERE''']. If you look at the image closely, you'll see that the micro HDMI and the USB data/charg port is attached to the board. It is a lot easier to change out rather than having to un-solder and re-solder the parts found [http://www.ebay.com/itm/Replacement-Micro-USB-Charging-Sync-Port-Connector-to-Fix-Vizio-Tablet-VTAB1008/161042291116?_trksid=p2047675.m1850&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D17171%26meid%3D414510502182320994%26pid%3D100011%26prg%3D8015%26rk%3D2%26rkt%3D5%26sd%3D251272709452%26|'''HERE'''].
Hope that helps! :)