21.5″&23.6″ LCD TV Haier LE22D3380&LE24D33800457.2 FW Upgrade(Take other model for example)Step 1: Ready for F/W upgrade1.1 Change the “.pkg” format software file name to “upgrade.pkg”, eg:After change:1.1 Prepare a USB memory (The file system of USB memory must be FAT16 or FAT 32).1.2 Copy the file (upgrade.pkg) from your computer to the U-disk root path, and remove the USB port fromcomputer’s USB port!Note: 1). Note the version of this F/W before you change the software file name.2). The software file name must be changed, or TV can’t detect the F/W.Step 2: F/W upgrade2.1 AC on the TV and turn it on.2.2 Plug the USB disk to the USB port on the side I/O port of TV.(Figure 2.1)Figure 2.12.4 The TV detects the valid software as below fig. Select “Yes” by RC.