Discussion on:

Cracking Open the Nokia Lumia 800

In order to change the case you need to remove all the parts inside.
For a complete disassembly in full 1080p search for 'lumia 800 disassembly' on YouTube,

Enjoy

I have been told by my mobile network that the Lumia 800 is beyond economical repair due to the pins being bent/broken on the charger port/usb connector. Any ideas why this is? Is it not a module that can be replaced or can it be soldered? I am thinking of just buying one with a broken screen off Ebay and putting my screen into it. Any advise on this appreciated...

The "PTTI TI 17K E2RS" is a DC-DC converter for the AMOLED screen.