If the TV does not respond to the USB recovery sequence, the bootloader itself is corrupted. In this scenario, the firmware must be flashed directly to the board's storage chip using a specialized hardware programmer.
Based on community feedback from 2023–2025, the following are considered the : 40ms801amac2hg firmware top
: Ensure your TV's current firmware matches the "MS801" motherboard type. Installing firmware for a different chassis (like MS68L) will cause the TV to fail to boot. : It is highly recommended to perform a Factory Reset If the TV does not respond to the
| Symptom | Likely Cause | Solution | |--------|-------------|----------| | Red LED blinks 6 times | Wrong firmware version for MAC2HG revision | Reflash with exact MAC2HG tag. Do not use MAC2HD or MAC2HC . | | USB not detected | Poor formatting or wrong port | Reformat FAT32, use port nearest to antenna input. | | Stuck at 50% progress | Bad sector on USB or corrupted bin | Redownload firmware, try a different USB drive (older 2.0 models work best). | | TV turns on but no image | Panel timing mismatch in top firmware | Enter service menu and change LVDS_MAP to alternative value (e.g., from 0 to 1). | | Remote stops working | IR configuration reset | Unplug TV for 10 minutes, then reprogram remote via pairing mode (if RF remote). | Installing firmware for a different chassis (like MS68L)
Before diving into firmware downloads, let’s dissect the string 40ms801amac2hg . This is typically found in: