Screen goes black after 2 minutes
My screen goes black after a couple of minutes and only goes ‘normal’ when I plug it in to charge. I can’t use the home or on/ off buttons because they are broken. I use assistive touch to get around the buttons issue normally but of course I can’t see it when the screen is black.
I have restored the phone to factory settings through iTunes on my pc. The reset worked fine but black screen persists.
How can I repair this?