Use Rufus or HP USB Disk Storage Format Tool for reliable results.

chunk_offset = read_int(f) # Target flash address chunk_size = read_int(f) # Data size comp_flag = read_byte(f) # Is compressed? crc_val = read_int(f) # Checksum

A successful upgrade is typically indicated by a flashing LED light or a blue or green progress bar appearing on the screen. Once the process is complete, the device will restart automatically.

Modern MStar platforms ( secure boot enabled) include security headers. The chunk payload may be signed.

Press and hold the Power or Right Arrow button on the physical TV panel while turning on the main AC switch.

: A screen should appear showing "Upgrade in Progress" or a blue installation screen. This process typically takes 5–10 minutes . Do not power off the device during this time.

The screen may show a progress bar or simply stay black while the LED flashes.