LG BP50NB40 failure

Forum for discussions about UHD-capable dives
Post Reply
bhazard1
Posts: 7
Joined: Thu Nov 06, 2025 12:01 am

LG BP50NB40 failure

Post by bhazard1 » Thu Jun 25, 2026 1:09 am

Svc code NB52 Manufacture date May 2025
Originally Rom ver 1.03, I flashed BP60NB10 1.00 and had been using it since November or so (purchased from Best Buy).

Recently developed an issue where it would drop connection to the PC when I opened the tray. I would have to open a new instance of MakeMKV to redetect the drive.
Yesterday it stopped detecting discs altogether, and also now the tray will not open at all, either via the button or software. Had to use the manual release.

Did some reading and saw a few people managed to recover by reflashing/recovering in SDF flasher. SDF detects the drive but gives an error when I try to flash either the same ROM or another.

Any ideas, or am I on my second dead drive? (previously lost a Verbatim 43888/BU40N)

Billycar11
Posts: 5837
Joined: Sun Aug 24, 2014 5:49 am

Re: LG BP50NB40 failure

Post by Billycar11 » Thu Jun 25, 2026 2:15 am

likely not a fw issue
you describing is as disconnecting when you pop the tray makes me think its internal cable related
have seen that before if the cable was routed/sticking out wrong it will rub through or break
Buy a drive from the guide and video maker: https://www.makemkv.com/forum/viewtopic ... 20&t=17831
UHD Drive Guide: https://www.makemkv.com/forum/viewtopic ... 16&t=19634
Auto flash kit $40 Email Billycar5924@gmail.com No attachments

Post Reply