You will need an lcd separator machine to separate the lcd from the glass as they are glued together and it needs to be put on a special hot plate. Tutorial and lcd separator machine reviews can be found at www.lcdseparatormachines.com if your interested..
To be able to defuse the lcd from the glass you will need an lcd separator machine that has a hot plate you put the screen on. Lcd separator machine reviews and tutorials can be found at www.lcdseparatormachines.com.
Yes it is possible to replace glass only on iphone. It requires an lcd separator machine. I found some useful lcd separator machine reviews at www.lcdseparatormachines.com. They also have some tutorials on how to do the repair.