Ensure you have the complete set. Multi-part archives cannot be extracted individually; they work as one single large file split into smaller pieces.
While the TV is unplugged, press and on the TV (not the remote). Download BRANDT BAB43F5SNA Firmware USB part3 rar
Plug the TV back into the power outlet while continuing to hold the Power button. Ensure you have the complete set
Navigate to > System > Software Update > Update by USB . Download BRANDT BAB43F5SNA Firmware USB part3 rar
Once finished (usually 3–7 minutes), the TV will restart automatically.
Are you experiencing a specific error like a or a frozen logo that prompted this update?