Why is my iphone 5 screen blank?

I switched the screens because a digitzer was shattered and now none of the screens work when plugged in. Everything looks completely fine but i have absolutely nothing. I'm starting to get really frustrated so Please Help

Try and hold the home button and lock button at the same time for 10 seconds for it to restart itself goodluck! Hope it works soon

It was probably replaced improperly. And since you have voided your warranty Apple will not help you.

Yes, maybe there are something wrong when change the screen.
You'd better go to a phone repair shop.

when you replaced the new screen, you'd better get a better screen protector to protect your screen.

recently, a Premium Tempered glass screen protector released,
it will can protect your screen well from scratch and damage.

Detail information please check it from eBay

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