: Often found in brands like Continental , Elekta, Elenberg, Mirta, and Saturn. File Breakdown

Updating this firmware can fix boot-loop issues (hanging on the logo) or restore a TV that won't turn on.

: The board typically only recognizes USB drives up to 16GB formatted in FAT32 .

: Insert the USB while the TV is unplugged, then plug it into power to trigger the automatic update process. Resources for Download

: After extracting the .rar file, the resulting firmware is usually named allupgrade_msd338_4G_ref58.bin . On some models, you must rename the ref58 part to sos (e.g., allupgrade_msd338_4G_sos.bin ) for the TV to "catch" the update.