Touchscreen changed but it won't work anyway
I've got a problem with my iPhone 5. A few weeks ago the touchscreen stopped to respond all the time. If I wanted to open an app my iPhone opened another one or if I wanted to type a message just very strange words were the result. But if I pushed the power button it started to work again. I made a reset but it still didn't work.
So I decided some days ago to buy a new display which I installed today. But the problem still exists! I made another reset but that didn't help.
So my question is what else can I do to fix the problem? Is there a component which I can replace?
Thank you for your answers!
Is this a good question?