With some devices the sum of usable parts can be as much as the present use value when fully functional. The board is junk now but the battery is worth a few quid if it's holding charge, as is the screen. The case not so much but the front bezel strip if not cracked is saleable as ppl often find they break it during removal to access the case screws. Check prices on eBay.

About preboot and Device Manager. In preboot it doesn't show up as a USB device as it does when Explorer lets it be browsed in MSM. From when you heard the 'ding dong' windows connect tone and saw the device details in Updater's GUI, while it took for the unsuccessful flashing process right thru until the flash failed, for that entire time while it was being detected by Updater.exe it would have also been listed in Device Manager under the Alphabetical list there (G not U). When the device dropped preboot or the flash failed it disappears from Device Manager instantly. You just didn't look at the right time in Device Manager because you were busy flashing it for those mere seconds is all.