Its possible i did for the first time ...just have to be veryyyy patience !!!
Have to heat and begin separating the glas with a paper business card or with guitar pick...
Have glue between the glass and the lcd so that can be made for a maximum 10 seconds after that need to heat again ...to melt the glue again and so on until u finish .
If you glass is broked into small pieces as mine, that will take more than 1 hour ...so be calm .
At the bottom have to stop breath and one buy one the button contacts from the glass.