Bluetooth does the same thing to me, it becomes corrupted after a while after every reinstall and fix and just disappears. Windows 10 bugged out Bluetooth and there is no clear solution in sight, even Microsoft cant solve this problem but Bluetooth USB sales have gone up since this bug happened on the finance. Most likely why this wont be fixed for a very long time on purpose. Only other permanent fix I can think of is finding something else like Bluetooth if it even exists to replace it. This bug has effected all my computers and even costed me a job because I couldn't present any of my work. I refuse to go and buy that Bluetooth USB, I will not feed into this bullshit.

Yea most parts besides the cover itself are rare to find because not many are made and MSI charges a lot of money for the parts themselves so they sell fast. The dragon plate on my gt83 broke off after it came back from repair looking like it was smashed by the team, it costed me 103$ to replace that piece of metal along with shipping. But MSI does respond quite fast or for me at least.