Updates for the CVTE MSD338 512M smart TV mainboard (often referred to as a "scaler" board) typically focus on system stability, app compatibility, and picture calibration. Key Update Features
Do you have the from the sticker inside your TV to help narrow down the exact firmware file? cvte msd338 512m smart tv update download
However, you can without a new firmware: Updates for the CVTE MSD338 512M smart TV
tail -f /storage/update.log
If you want, I can: