How do you stop demo mode on lexibook junior tablet? just bought it for xmas and wont let us do anything but keeps playing demo video over and over

try this,,,settings>storage>apps> demo video> disable

or this,'
Tap on Apps in home screen - Settings - Storage - Internal Storage - Apps - Scroll down and Identify "Demo Video Application" under the apps list .

Tap on Clear Cache and tab on "Disable", Ignore the warning message.
Note: Cust may see the "Demo mode" icon in the homescreen, however it wont bringup Demo Video

try to look on youtube on this should be easy to set up , just goto setting and internet options etc ,

If that was one of those 40 or 50 dollar tablets you may be out of luck, try holding the volume down button then turning it on. I do also know that some cheapo tablet manufacturers have " cheaper than buying another one " repair

Take it to a selling or service point

Please follow the below mentioned procedure to disable Demo Mode in Acer Iconia Tablets.
Tap on Apps in home screen - Settings - Storage - Internal Storage - Apps - Scroll down and Identify "Demo Video Application" under the apps list .

Tap on Clear Cache and tab on "Disable", Ignore the warning message.
Note: Cust may see the "Demo mode" icon in the homescreen, however it wont bringup Demo Video
Regards


How can get out from Iconia A1 810 DEMO Mode

Please try this:
Tap on Apps in home screen - Settings - Storage - Internal Storage - Apps - Scroll down and Identify "Demo Video Application" under the apps list .

Tap on Clear Cache and tab on "Disable", Ignore the warning message.
Note: Cust may see the "Demo mode" icon in the homescreen, however it wont bringup Demo Video

Go to SETTINGS; Go to DEVICE; Select APPS; Side scroll to right until you find DEMO VIDEO at the bottom of the page; Select it and follow the indicators to DISABLE the VIDEO MODE. Restart the tablet. The 'demo mode' will still appear in on the lower left of the display but the mode is DISABLED.

You'll have to factory reset it by turning it off and holding the home button and power button at the same time I know because I got into my hidden setting and accidently turned it on myself

Sorry I never saw this before, the best thing to do is to go back to the shop you purchased them from. If you bought them from a second hand source then the batteries are probably finished, they only last a year or so. You can buy replacements via eBay and when you get them, there are instructions in the following link to walk you through how to replace them.

https://de.ifixit.com/Anleitung/Lexibook+Junior+Tablet+Battery+Replacement/69214