A new phone must be in and out, but it makes no sense to easily throw the predecessors in the garbage. There is still a second or third life for many smartphones. What is often done: Many families hike by the different generations. If the parents left a cell phone, it will be reissued and then passed on to the children. Of course, you can also give it to friends or try to sell the outgoing mobile ph1. But sometimes a creative area of application is also available at home. We have five suggestions on how to convert your old ph1. 1. Smartphone as a TV remote control