Not sure if it's okay to put this here, but posted it on iFixit and didn't get any hits. Fixing an iPhone 5c and stuck. I had bought a screen assembly kit on eBay which includes the home button, camera, screen, digitizer, etc to make the repair easy. The 5c screen is cracked, so I popped it open, tried to unscrew the screws to the tray that holds the connectors to the screen in place although only one would come out with the Phillips #000, being the top right screw (also the largest). The others aren't moving. I noticed they're different sizes (smaller) but I don't know what the issue is. There's a small amount of crackling when unscrewing but I don't want to fray/sheer the screws to the point that it's impossible to screw back in once they're out. Could a regular 4-point Phillips screwdriver work? Help?