Verbatim 43888 LG BU40N flashing failed

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Btags
Posts: 2
Joined: Sat Mar 07, 2026 5:34 pm

Re: Verbatim 43888 LG BU40N flashing failed

Post by Btags »

I just recently got a backup 43888 (my primary 43888 is a pioneer drive, but this new backup is an LG bu40n).

I tried flashing the backup to the bu40n mk1.03, firmware. The flash said it succeeded in the sdf tool, but then the drive shows as boot in makemkv and the sdf tool. Once it is in this state, I cannot use it to rip discs (the drive will not even open) and the sdf tool cannot flash it again, but using the LG tool I am able to reflash the original firmware, and the drive works in the sense that it can rip normal blurays, but not 4k.

Is there something I am doing wrong? I successfully flashed my old LG internal drive, but this external verbatim LG bu40n just doesn't seem to want to flash successfully.
boguslecina
Posts: 42
Joined: Tue Dec 17, 2024 12:21 am

Re: Verbatim 43888 LG BU40N flashing failed

Post by boguslecina »

Firmware 1.0 may have problems reading and burning certain discs. Versions 1.03 and 1.05 include several fixes that improve stability, especially when burning discs.
Inferno1848
Posts: 7
Joined: Sun Feb 22, 2026 3:54 pm

Re: Verbatim 43888 LG BU40N flashing failed

Post by Inferno1848 »

Btags wrote:
Sat Mar 07, 2026 5:56 pm
I just recently got a backup 43888 (my primary 43888 is a pioneer drive, but this new backup is an LG bu40n).

I tried flashing the backup to the bu40n mk1.03, firmware. The flash said it succeeded in the sdf tool, but then the drive shows as boot in makemkv and the sdf tool. Once it is in this state, I cannot use it to rip discs (the drive will not even open) and the sdf tool cannot flash it again, but using the LG tool I am able to reflash the original firmware, and the drive works in the sense that it can rip normal blurays, but not 4k.

Is there something I am doing wrong? I successfully flashed my old LG internal drive, but this external verbatim LG bu40n just doesn't seem to want to flash successfully.
Das gleiche Problem hatte ich auch, dass mein Laufwerk sich die Schublade ebenfalls nicht mehr öffnen ließ.
Ich konnte bei meinem Laufwerk mit der Original LG Firmware 1.05 selbst damit kein Flashen mehr durchführen, da der SVC Code nicht mehr stimmte, sehe Beitrag 8.
Welches LG Tool ist gemeint?



I had the same problem; my drive's tray wouldn't open anymore.

Even with the original LG firmware 1.05, I couldn't flash it because the SVC code was no longer valid (see post #8).

Which LG tool are you referring to?
Btags
Posts: 2
Joined: Sat Mar 07, 2026 5:34 pm

Re: Verbatim 43888 LG BU40N flashing failed

Post by Btags »

Inferno1848 wrote:
Sun Mar 08, 2026 11:22 pm
Btags wrote:
Sat Mar 07, 2026 5:56 pm
I just recently got a backup 43888 (my primary 43888 is a pioneer drive, but this new backup is an LG bu40n).

I tried flashing the backup to the bu40n mk1.03, firmware. The flash said it succeeded in the sdf tool, but then the drive shows as boot in makemkv and the sdf tool. Once it is in this state, I cannot use it to rip discs (the drive will not even open) and the sdf tool cannot flash it again, but using the LG tool I am able to reflash the original firmware, and the drive works in the sense that it can rip normal blurays, but not 4k.

Is there something I am doing wrong? I successfully flashed my old LG internal drive, but this external verbatim LG bu40n just doesn't seem to want to flash successfully.
Das gleiche Problem hatte ich auch, dass mein Laufwerk sich die Schublade ebenfalls nicht mehr öffnen ließ.
Ich konnte bei meinem Laufwerk mit der Original LG Firmware 1.05 selbst damit kein Flashen mehr durchführen, da der SVC Code nicht mehr stimmte, sehe Beitrag 8.
Welches LG Tool ist gemeint?



I had the same problem; my drive's tray wouldn't open anymore.

Even with the original LG firmware 1.05, I couldn't flash it because the SVC code was no longer valid (see post #8).

Which LG tool are you referring to?
I used the "firmware update for bu40n (version 1.05)" tool in the manuals and software tab of the following link:

https://www.lg.com/us/support/product/lg-BU40N

Also, don't know if it will help you but after many trials I was able to Flash to the 1.04mk firmware for the bu40n and that has allowed me to rip 4ks.
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