Why won't The Nabi 2 screen will not unlock even after it is swiped

1.Open the notification panel by swiping the two fingers slightly from the top of the screen to the bottom.
2.You will see the Wi-Fi icon at the top of the panel.You can touch the icon to turn Wi-Fi on.

swipe your finger from top down

Close GMail first by swiping it off the running apps screen.

Uninstall GMail using the *Uninstall* option in:

Settings > Apps > Downloaded > GMail. Touch GMail and you will get another screen with an option to uninstall it. Touch the uninstall button and it will uninstall.

Then go to the Google App Store and download it again. It sounds like the Mail app got corrupted somehow.

Try swiping your finger across the middle of the screen from right to left. This action turns the page forward. Swiping your finger across the middle of the page from left to right turns the pages backwards. I don't think the icon on the bottom is for page turning.

The photos can be deleted by opening the yellow "My Files" box shaped icon that you can view by swiping the touch screen from right to left and then swiping from top to bottom until you get to the letter M list of apps. Tap on the My Files icon and then tap images and then camera. Tap on the box next to the photos that you want to delete so that you see a green tick. Then tap on the dustbin icon and delete the selected photos.

This video may help if can get internet access from somewhere
Samsung Galaxy Tab 3 SM T211 hard reset

By replacing the screen you have to connect 3 ribbon cables.One of them is the digitiser (touch panel) and most likely this connection isn't good. Usually i check this while the iPad is still open.

Swipe from right to left.

If that doesn't work, close Safari and reboot your iPad.
Double tap tap the home button and then swipe up on the Safari preview screen that you see right above the Safari icon. Swiping up on that screen will close the app.
Hold down on the sleep and home buttons at the same time until the Apple Logo appears on the screen. After the iPad starts up, try again.

To enable screen rotation, access the notification curtain by swiping down from the top of the screen. Touch the rotation icon, which looks like a lock circled by arrows. This should unlock
and allow the screen to remain static while the tablet is rotated

ok try the reset button plug the power cord before you start. look where is the reset and use a small point toothpick .