B7000 will glue your screen to the case very well it can also be taken back apart if other repairs may be needed most of these people have never replaced a screen before and many of these answers will damage the phone and it will be unrepairable once its glued with a lot of their answers and tape is really not that great its hard to get into corners and make the phone completely water proof your can use tooth picks if need be in smaller areas i use small wooden dowels shaved down to do most work hat away i can shave the glue off and have a fresh surface to repair with again