No. It will produce a cropped or zoomed image. You need the Full HD version. However, you can try it – no hardware damage will occur, but the picture will be wrong.
Firmware acts as the bridge between the hardware of the controller board and the specific LCD panel you are using. Because different panels use different data transmission protocols and timing, installing the wrong firmware can result in a "No Display" error, distorted images, or a "Mirror Image" effect. T.v56.03 Firmware -FREE- Download 1366x768
Once the firmware is installed, you might need to make minor adjustments (like flipping a mirrored screen or tweaking color balances). You can achieve this via the hidden Factory/Service Menu. Turn on the TV using your remote. Press the (or Source) button. However, you can try it – no hardware