www.makemkv.com

I'm pretty lost, I don't really know where to ask, sorry if this topic is misplaced.
Hello, I recently got a BU40N and flashed MK 1.03 on it, it worked fine for maybe 2 weeks then just stopped reading any blu-ray discs. DVD still work perfectly fine.
It's directly wired in SATA in the PC, no USB adapters. Can anyone help me?

Not reading ANY BD disk usually means the BD laser is not functioning. The red laser used for DVDs is functioning well, but the mostly-blue BD laser isn't.

My suggestion would be to replace the drive.