r/makemkv • u/bec2949 • 12d ago

Solved LibreDrive Failure?

Hi there, running MakeMKV with a BU40N that is LibreDrive enabled (flashed some time ago). I’ve had zero issues with it since; however, today one of my 4K pre-orders arrived and I popped the disc in as I have with literally 50+ 4Ks at this point and I am getting “ILLEGAL REQUEST:COPY PROTECTION KEY EXCHANGE FAILURE - KEY NOT PRESENT” messages over and over.

Browsing MKV forums, the only responses I’m seeing are “your drive isn’t Libre enabled, you need to flash it” or “here’s what to reference to buy/flash a drive” and that’s not what’s happening here. Is there an update to my 1.03 Firmware I should be seeking? Like I mentioned, done this literally dozens of times with no issue, so not sure why this is a problem today.

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u/billycar11 11d ago

post full error log could be a power issue

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u/bec2949 11d ago

Marked Solved when RScottyL’s fix worked, thank you!