![Image](https://pbs.twimg.com/media/Epg8lfQUUAASZia.jpg)
I have hp oem version BU40N.
The firmware version of this device that I have was BW42, but when I looked at the forum, there was no case, so I was worried. BW41 is said to be, so it's just in "(Modified) ASUS ODD FW Changer (24.08.2019) + UHD Friendly Firmwares + Latest MK Pack (20.07.2020)"
Flashing the "DE_LG_BU40N_1.00.bin" firmware to "ASUS_ODD_FW_Changer_(Modified).exe".
During flashing, it didn't go over 60% for a long time, so when I forcefully terminated and reconnected, the model name and version name were changed, and libredrive, which was not supported in BW42, was also marked as support.
Now, I flashed it with version 1.04mk and it was displayed as below, and it was confirmed that UHD (test movie: weathering with You korean ver) video can be read well.
![Image](https://pbs.twimg.com/media/EpgxF5SUcAEaB3Z.png)