(Cross)Flashing BP50NB40 NB52 ?

[librelibre]

Referred to
Flashing LG model BP50NB40-NB52 (2020)
viewtopic.php?f=3&t=38847

Easy Linux Cross-Flash Guide (2026) - for the NB50, not NB52
viewtopic.php?f=3&t=40977

---
Is this correct for the process for the NB52 ?

1 - get flash firmware

download sdf.bin (https://makemkv.com/sdf.bin)

download the all in one firmware pack, and extract


2- You need makemkv 1.17.7 bin to flash

Once downloaded, extract files

```
tar xf makemkv-bin-1.17.7.tar.gz # or right click and extract archive
```

navigate to makemkv-bin-1.17.7/bin/amd64/makemkvcon
Make makemkvcon executable
```
chmod +x makemkvcon
```

copy makemkvcon, sdf.bin, HL-DT-ST-BD-RE_BP50NB40-NB50-1.03-NM00800-212005070917.bin and HL-DT-ST-BD-RE_BP60NB10-1.02-NM00800-212005070935.bin to the same directory. Go to that directory in terminal.

this will give you your bluray drive id you need for flashing
```
./makemkvcon f -l
```


3- check sftool (do you need to do this?)

```
sdftool --version
```



4 - flash

first flash with encryption
firmware is encrypted, hence enc
it's a slimdrive, hence slim
dev_xx:x is your bluray drive id

first flash with encryption
```
./makemkvcon f -d dev_xx:x -f sdf.bin rawflash enc slim -i HL-DT-ST-BD-RE_BP50NB40-NB50-1.03-NM00800-212005070917.bin
```

second flash with bootloader
```
./makemkvcon f -d dev_xx:x -f sdf.bin rawflash full -i HL-DT-ST-BD-RE_BP50NB40-NB50-1.03-NM00800-212005070917.bin
```


crossflash
```
./makemkvcon f -d dev_xx:x -f sdf.bin rawflash main -i HL-DT-ST-BD-RE_BP60NB10-1.02-NM00800-212005070935.bin
```

[tomty89]

It *seems* to me that you should always have `slim` if you are flashing a slim drive. No idea why it is not required as per the first guide though.