When troubleshooting the power supply section, always discharge the main filter capacitor (using a 40W bulb) to avoid high-voltage shocks, even after the unit is unplugged.
To enter the service menu, use the remote sequence Menu + 1147 . Firmware & Software Links Download MS338 PC822 1920x1080 Samsung REF60 part08 rar
Are you currently facing a like a boot loop or a "no signal" issue that you need the firmware for? TP.MS338.PB801 Power Supply: DEAD? Fix It Now! When troubleshooting the power supply section
If you are downloading this firmware to fix a specific issue, consider these common board problems: consider these common board problems: