I change the camera lent: PLEASE REPLY

[easyfiresound]

Hi guys i have a scratches on camera lens And The Image are blurrend, i can't Take a photo. Now i have Pre-order a new lens here:http://rounded.com/sony-xperia-sp-c530x-camera-lens.html?desktop=. Now i replace The lens with this video:https://www.google.it/url?sa=t&source=web&rct=j&ei=_zfaU9P6JIfE7AbQsIFY&url=http://m.youtube.com/wat... The website where i have Pre-order The lens is a affidability site??

[easyfiresound]

Moderator please reply; can i change the lent if i follow the video?? is safety? i have pre-order a lent. thk you. I can't send my phone to SONY assistance because they for re-send me i wait more month... 😕