Many websites offer “universal firmware” or require paid memberships. Be extremely cautious of .exe files or zip archives containing executables. Legitimate firmware for this board comes as a simple .bin, .img, or .pkg file, plus a text instruction file.
The 40-MS801A-MAC2HG firmware is a niche but vital component for reviving older MS801-based TVs. Without an official source, your best bet is to locate a known-working dump from a donor board or a verified repair forum (e.g., BadCaps.net, Reddit r/TVRepair). Always back up your existing firmware via an SPI flasher before attempting any write operation. 40-ms801a-mac2hg firmware