Why is my tablet keep turning on and off?

Hello, the problem is probably caused by liquid entering the tablet. iFixit has some excellent guides and wikis for this specific issue that should provide a good starting point for your repair. I’ll share the links below, but here’s a quick rundown: you’ll need to open the device and clean off any corrosion from the internal boards. Depending on the extent of the liquid damage, you might also need to replace the battery.

I know that this answer is a few years late, but hopefully it will help anyone else experiencing a similar issue.

• Electronics Water Damage Wiki
• Laptop is Liquid Damaged Wiki
• iPhone Liquid Damaged Repair Guide