I ordered this (http://www.aliexpress.com/item/for-S...603707841.html) back plate two weeks ago and it arrived yesterday, my old one was broken.. I don't know if it's glass or hard plastic, but it's holding up great without any protection!
There is no shatter film on the backplate, so I think its not original but OK.
It was very easy to take the old one off; just some heat, a sharp knife and a guitar pick did the trick.
The new one came with adhesive, and after cleaning the frame it went right on!
All in all very nice, and easy install, may be original, may be not.
Press thanks if I helped you :thumbup:
Sent from my C6903 using xda premium