My friend replaces iPhone screens and back glass all the time. I think he charges people 20-30$ cad to cover the cost of the parts. Takes him less than 10 minutes.
Most screens come with the kit of tools you need for the tiny screws and to pop off the ribbon cable connectors.
I think that is pretty quick easy and cheap. I feel bad for people who go to Genius Bar to have this done for $150.
If he's only charging $20-30, he's only replacing the glass. The Genius Bar is probably replacing the screen and glass since that's an easier procedure for them than just the glass.
I think the screen is one unit and you can't just replace the glass on the screen. It is a very quick procedure for my friend too. A couple of screws and a ribbon connector and away you go.
The parts are cheap on eBay. So far the $3 battery has been a dud though.
Most screens come with the kit of tools you need for the tiny screws and to pop off the ribbon cable connectors.
I think that is pretty quick easy and cheap. I feel bad for people who go to Genius Bar to have this done for $150.