After 4 days of constant app crashes and independent off

On 14/01/2015 I bought in the media market, the Air Ipad 32GB, as it was with 419 pretty "cheap" there. Previously I owned the iPad Mini with 16GB. That reminds me, this was just not enough memory, I chose the Air Ipad.

The unit makes a good impression. Screen is bright and clear. Work does it quite quickly. It is also quite easy.

By Friday I was also very pleased. But then it started, the apps could not be open, and crashed immediately. Then 2 per 1-1.5 cm large pixel errors were introduced, but disappeared again.
This morning, no more apps were open. Which I will restart. After restarting me a white screen with "Hello" and "Voice Over" was directly is enabled, whereby the screen is geperrt (up to the moment I did not even know what that is, or have ever something enabled) I should not hesitate to 3 times consecutively press the Home button to cancel the lock. Said and done. Then the Ipad went out completely and could no longer turn on. Even when I connected it to the laptop, it did not yield any results.

After about 2 hours the Air Ipad turned suddenly on its own, to tell me that "voice over" is activated again and I should proceed already written above. The same game over again, only it went again. Pixel errors were present again.

I will return the unit tomorrow to Media Markt. Too bad that I have apparently caught a Monday device!