Chosen Solution

So the other day I was replacing a screen and the flex cable that runs along the shield ripped. I was told this could be replaced, so I replaced it. Problem is, im getting anything from the phone. Any tips? Im fairly certain that nothing else is wrong with the phone. Thanks for any advice.

Try to hardreset the phone by keeping the home and power buttons presed for 15sec. If this is not working try to unplug the battery, plug it back in and plug the charger in to the phone.