: Never power off or unplug your TV while a software update or backup installation is in progress.
: The TV will check for the latest version. If an update is found, select Download to start the process. Manual Backup and Firmware Files Download Haier LD42U7000 Software Backup rar
: If the TV is functioning but you need to check firmware versions or perform a reset, you can often enter the Service Menu by pressing Menu on the remote and then entering the code 8 8 9 3 . : Never power off or unplug your TV