Well, at first thank you repair universe for your guide! It was useful for me!
I repaired successfully my HTC One X and now it's great!
I'd like to share my experiences with you guys hoping that they'll be useful for you.
Replacing the screen ain't an easy thing as you can easily understand but if you are very patient and good at this kind of things, and you are going to follow this guide, you can try.
The most hard part was to find a good seller who can deliver you an Original HTC OEM product!
Infact, most of the seller will send you a chinese crap item that will break in 4/5 month of usage and it's far from being an authentical Gorilla Glass Screen! I went over 4 refunds before getting a genuine one.
The reliable seller that I found is express-homeshop, and you can visit it through the links that I've posted before; I believe that there are also some other shops where you can find authentical original screens..
However if you need to know the difference between a crap and an original one, the method to find out if your screen is original is :
1)the screen must be as dark as the original cracked one if it's off!!
2)you have to put a finger on the glass and another on the LCD panel and press. If it doesn't appear anything on the screen then it's original, otherwise you will get a "reverse bubble" effect which will turn on damaging the touch panel (crappy chinese products).
3)The original units have three backlights conductive paths made in plastic, located between the glass and the lcd panel, that will redirect your backlights to the right place (otherwise they'll be shifted of about 0,5cm from the capacitive button place)
4)The HTC logo on the top of the glass must be as tall as your cracked original screen (chinese's one is taller)
5)The crappy unit is slightly thicker than the original and as soon as you reassembly the phone you will do notice that!! the screen will be higher than the plastic and it will cause a different feel of the phone and an increased probability to break your screen.
with this method you should distinguish a good assembly from a crappy one! They are very different as you can notice!
I strongly suggest you to take an original piece (even if it costs a little bit more 90€ against 160€) because the difference is very very noticeable (I had both original and crappy).
Don't believe to sellers who tell you that "it's original" without sending you photos of the real product. You need the photos and my method to be sure to purchase an original unit.
And be sure that they will offer you a refund in case anything goes wrong!
In fact, most of the sellers don't even know that their product is not original!
I hope that this will be helpful for you unlucky people with broken screen like I was before!
Now I leave you some photos of my new amazing original screen next to my old cracked one!
Regards!