which part of the phone????

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Makes a HD2 be a T9193 and not a T8585????
The reason I'm asking is because I disemboweled my T9193 and I cannot find another one at a decent price, but I might be able to buy a T8585 for a reasonable price and if the key part it still in one piece may be a repair shop can swap them around.
Or that does not makes any sense?
Thanks,

Should be the mainboard and possibly the lcd and outer housing. The 8585 is the 1024 Mb TMOUS right?
If so, then definitely the board would be different, and I think the Euro HD2's have a different lcd display than the TMOUS's.
What piece do you need to replace anyway?

I don't really know to be honest...
It started with the usb port problem but after several disasembling combined with my lack of experience and use of wrong tools I don't know how far the damage is, especially because after I screwed a couple of things up I kind of gave for granted that the phone was not salvagable and started "peeling" things off just to see. That's why I thought of using this one as a donor but I'm not sure it would work if there are several pieces needed.
It was after that when I started looking for a new one that I realised that there are none T9193's on the market any more (not even in Australia where these were used mostly by Telstra)
The thing is that I need a phone with wi fi hotspot to use in February in a job out where I need to connect to internet on my laptop but I'm not sure what to buy. I wanted to give a try to the HTC Edge once it came out but if I spend $500+ now on a phone I won't be able to buy the Edge in few more months.
At the moment the only candidates I see are either the galaxy S2 Skyrocket or the HTC vivid.
And to be honest even though the Galaxy seems to be a better option I'm a HTC fan and after having the HD2 for almost 2 years I'm not sure I'll like Android.
Yes, I know it sounds stupid but I got used to WM 6.5 my girlfried has an Android phone an I played with it a bit but I'm totally lost with it.
So I either find a cheap unlocked 3G (with AT&T bands) and wifi hotspot to last until the Edge comes out, or ditch out now for either the Galaxy or vivid and forget about the Edge later