www.makemkv.com

Hello I'm trying to flash my LG WH16NS40 which on makemkv it says libre is
possible with patched firmware. I'm trying to flash the firmware
DE_LG_WH16NS40-NS50_1.02.bin and I keep getting a pop up saying
ERROR:
command produced error code 0x82052603

any help would be nice

There's a whole thread for the SDFtool Flasher: viewtopic.php?f=16&t=22896

Also, the Ultimate UHD Drives Flashing Guide in the section titled Recommended Firmware to flash for MakeMKV says:

WH16NS40 on any Firmware directly to > WH16NS60 1.02MK

Hopefully you have MakeMKV installed in the standard location. No disc inserted in your drive and the tray closed.