Please tell first have you buy orgine or a clone lcd, i have hear from many users they have problems that clone dont fit or with other Problems. I have buy 3 times a clone lcd for my iPod touch and the Problem whats eher the Same problem with cable that is broken but you cant see it.
Now i have the same Problem with Huawei Mate 7 (Glas only is broken) and i have read now, that you dont can repair it with Glas only, you Must buy the Glas with digitalizer why .... When you realy make it to lose digitalzer from Glas, you Never will become it working back .
Here is a youtube Video to make ist self.
(Ist not from me and only in German )
https://youtu.be/c7mP8pBwtLY
I Hope it will help you.
Sorry for my englisch i am from Germany. When you have make it, please give a Info back. Thanks