Dopo tablet screen backwards

power off the tablet
then press power and volome down simultaneously
until you see the reset menu select reset with up down keys
acknowledge with power to reset

Hi Karen, The links below are YouTube videos showing how to fix upside down mirror screen, Also there's videos down the right side of the link that may help as well.......... CHEERS..
https://www.youtube.com/watch?v=W3LJMEr2Nm8
Vizio VTAB1008 Via Mirror Screen Reversal

they are all pretty much the same just go by another tablet screen change and just be carful with the ribbons ,

This sounds weird, but you might try it...
http://www.androidtablets.net/forum/android-tablet-discussions/55434-dopo-10-1-backwards-screen-data.html

use this program chines tablet software

You may need more space--try deleting data or apps from the tablet's internal memory. Move what you can to external memory--probably your micro-SD card (if available, and that's possible--given certain apps, that may not prove possible). Always, it's a great idea to take some time to delete data, cache (temporary memory) and apps proving harmful or no longer necessary! Your micro-SD card (or other compatible external storage) generally isn't included with tablets or phones--you may purchase the cards at stores or online.

Can you please tell me how to reset a tablet thank-you so very much?

Check your graphic card settings. I have a 6600gt, and can invert my screen. Try going: right click your desktop, select properties. Go the settings tab. Clieck advanced. There do you have a tab for your graphics card? Mine shows I have a 6600Gt. After selecting the tab it displays options. I have NVrotate. That rotates my screen.

This is very unusual and I've never come across it. I can only think there has been some type of software corruption as you can not put the screen in backwards or upside down.