The firmware (or "dump file") is the low-level software stored on the TV's mainboard. It controls everything from the panel's LVDS signaling to the remote control codes and the on-screen display (OSD) menus.
Haier uses various panels; the MS18VG 81B 12145 dump is specifically tuned for the electrical timings of that board version. Download MS18VG 81B 12145 1366x768 Haier Backup Dump rar
Use WinRAR or 7-Zip to extract the .bin file from the archive. The firmware (or "dump file") is the low-level