You must either desolder the 8-pin flash chip from the motherboard or use an SOIC8 test clip to connect the programmer directly to the chip while the TV is unplugged.
Unlike a USB update, a .BIN file usually requires hardware intervention: Download DUMP STREAM LED 42L33 carte mere msd309b t9b BIN
Always save a backup of your original corrupted dump before flashing the new one. This allows you to revert if the new file is not a perfect match for your panel. CHINA LED TV 32L31F, MSD309B-T9B - KenotronTV You must either desolder the 8-pin flash chip
Use software like ASProgrammer or the CH341A Programmer tool to write the data. CHINA LED TV 32L31F, MSD309B-T9B - KenotronTV Use
Stream (often Stream System, popular in Algeria and North Africa). Model: 42L33. Mainboard (Carte Mère): MSD309B-T9B.
A reliable repository for "China LED" boards like the MSD309B series. How to Use the Dump File
Because these are proprietary files, they are rarely hosted on official manufacturer sites. They are primarily shared on technician forums: