Phone [Q]Motherboard

hey everyone!

Im trying to make my hox alive again. Basically I need a new motherboard P/N: 50H00755-18M or 50H55755-47M

im unable to find any. Maybe someone can give me a link? Or maybe someone with a cracked screen hox can sell me his motherboard/phone (sry I know xda is not for selling/buying parts)

My phone is like new except for that dead motherboard it would be awesome if I can repair it.
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Useful links for the HTC One:
nkk71's SuperGUIDE to returning 100% back to stock
Flashing requirements chart by nkk71 by crushalot