High temperatures can expand internal components slightly, leading to "ScSI Error" or "Read Offset" failures mid-rip.
Some users report that 1.00 is the most stable version for burning high-capacity 100GB BD-XL discs, whereas newer versions can occasionally trigger write errors. Managing Thermal "Hot" Issues bu40n 100 firmware hot
Never cross-flash a BU40N with firmware from a desktop drive (like the WH16NS60), as this will permanently brick the slim drive. Ultimate UHD Drives Flashing Guide Updated 2021 : r/makemkv Ultimate UHD Drives Flashing Guide Updated 2021 :
Unlike newer "MK" (MakeMKV-specific) patched firmwares like 1.03-MK or 1.04-MK, the 1.00 "DE" (Downgrade Enabled) version is widely compatible with a broader range of software, including DVDFab and Xreveal . bu40n 100 firmware hot
Version 1.00 is a "UHD-friendly" firmware that allows software like MakeMKV to bypass AACS 2.0/2.1 protection on 4K Blu-rays.
Look for DE_LG_BU40N_1.00.bin within the "All You Need Firmware Pack" widely shared on the MakeMKV Forums .