: The standby light (LED) should start flashing (usually red/green), indicating the update is in progress. Do not turn off the power during this time.
: Once the LED flashes rapidly or stays solid, unplug the TV, remove the USB drive, and then power the TV back on. Where to Find Files Download MT5522S 3840x2160 Starsat part04 rar
Once extracted, you will usually find the following files required for a USB update: : The standby light (LED) should start flashing
Once you have the extracted files, follow these general steps found in technical service manuals for this board: : Format a USB flash drive to FAT32 . Where to Find Files Once extracted, you will
Technical communities like KenotronTV often host these specific firmware dumps for technicians. Always ensure the panel model (e.g., HV550QUB) matches your TV’s internal sticker to avoid upside-down or distorted images after flashing.
: Because firmware files for 4K Smart TVs can be large (often several gigabytes), they are often split into smaller volumes (e.g., .part01.rar through .part04.rar ) for easier hosting and downloading.
: Right-click the first part ( part01.rar ) and select "Extract Here." The extraction software (like WinRAR or 7-Zip) will automatically pull data from all other parts, including part04.rar , to create the final usable firmware file. Typical Contents of the Archive