Maybe you are trying to repair your LG 3G. There are some tips hopy help you. Before you attempt an LG G3 screen replacement you might want to consider the way that this phone is put together. The LG G3 display contains three different layers two of which can be separated. While this makes it replacing just the glass and digitizer theoretically possible there are quite a few factors that will determine whether or not this is a realistic option.
When dealing with a glass screen repair there are three possibilities that we are likely to encounter. One is where the glass and digitizer are not physically attached to the LCD. A good example of this design is the iPhone 3GS. If the glass breaks it can simply be removed from the frame assembly and replaced with a new part.
More recently though most manufacturers have abandoned this design in favor of one where the glass and digitizer are glued to the display whether LCD or AMOLED. This holds true with the iPhone 4 and all successive models up until now and has been used by Samsung since the introduction of the first Galaxy series phone with a few exceptions.
LG G3 rear panel screws
Remove all of the screws before you pry.
LG has also begun to use this kind of glued assembly so if you plan to replace your G3 glass you are going to have quite a task to accomplish. LG in particular is notorious for making LCDs that are very sensitive to pressure. Attempting to pry them away from the digitizer is a highly precise procedure that often ends with a broken display. While we were able to carefully pry the glass off of a Samsung Galaxy S4, the LG G3 LCD would almost certainly be destroyed by this process. So we will have to use a more advanced method in order to remove the digitizer.
For this phone the preferred method is using a combination of an LCD separator and molybdenum wire to carefully slide between the two pieces without applying uneven pressure and without causing any scratches to be dug into the surface of the LCD. Molybdenum has a very smooth surface and the one that we use has a very fine gauge so it slides between the layers without pushing against the display.