Because of its lean and fan less design the Raspberry Pi is a perfect piece of hardware to create a simple slideshow system or so called Digital Signage Server (DSS). Perfect to drive a LCD somewhere to teaser the latest offers or new products.
The Nexus 7 (2012) received the Android Lollipop firmware a while ago. Sometimes the tablet became very slow or even unresponsive. The following measures might help revert those issues. That topic is already covered quite thoroughly by lots of other blogs and websites. Still, I wanted to write down the actions that helped me bringing back my Nexus 7, even if it’s just for private documentation purposes.