Matshita Bdmlt Uj240as Firmware Update Updated [2021] Jun 2026

Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\4d36e965-e325-11ce-bfc1-08002be10318

The is a slim-type internal Blu-ray writer commonly found in laptops from manufacturers like Toshiba, Sony, and Dell, specifically during the 2010–2014 era. As these drives age, they may develop issues reading newer Blu-ray media, face compatibility problems with Windows 10/11, or experience slow writing speeds.

or IMGBurn (in Read mode) also displays the firmware revision in the bottom info panel.

These drives are known for a few specific issues, often resolvable with the correct firmware: matshita bdmlt uj240as firmware update updated

: If the drive still fails to read specific discs after an update, it may be a physical lens issue rather than a software one. Using a specialized lens cleaner can often resolve stuttering or "No Disc" errors. Drive Specifications for Verification

Run the Windows Hardware Troubleshooter, or open the Registry Editor ( regedit ) and navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\4d36e965-e325-11ce-bfc1-08002be10318 . Delete any entries labeled UpperFilters or LowerFilters , then restart your computer. "Target Drive Not Found" Error

Since the drive is over a decade old, many manufacturers have removed the updates from their sites. You can try: These drives are known for a few specific

This occurs if your drive uses a custom firmware branch from a different manufacturer. You may need to look for a "cross-flashing" utility tool or check alternative OEM archives (like Panasonic's generic industrial support legs) to find a flasher that ignores sub-vendor checks. Drive Still Fails to Read Blu-ray Discs Post-Update

Fixes detection and sleep-wake issues on newer versions of Windows. Crucial Warning: Identify Your Drive's OEM Origin

Look at the end of the text string (e.g., 1.00 , 1.01 , 1.10 ). This is your current firmware revision. Step-by-Step Guide to Updating the Firmware Step 1: Source the Official Update Delete any entries labeled UpperFilters or LowerFilters ,

Select from the Property drop-down menu. The letters and numbers at the end of the first line indicate your current firmware revision (e.g., 1.00, 1.10, 1.20). Step 2: Download the Official OEM Update

Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\4d36e965-e325-11ce-bfc1-08002be10318 Look in the right pane for and LowerFilters . Delete both keys, close the registry, and restart your PC. Alternative Solutions for Modern OS Compatibility

Restart your PC and enter the BIOS/UEFI screen. Check if the SATA port recognizes the drive.

Locate the specific firmware released by your laptop creator. The UJ240AS was widely utilized by Sony, Dell, HP, and ASUS.

The Matshita (Panasonic) BDMLT UJ240AS is a widely used internal Blu-ray burner designed for laptops and slim desktop enclosures. While this optical drive is a reliable workhorse for reading and writing Blu-ray discs, DVDs, and CDs, it can encounter performance bottlenecks, media incompatibility, or recognition bugs on modern operating systems like Windows 10 and Windows 11.