My 22F5400 has become very slow in boot and I needed to wait 5 minutes before to be able to use the remote.
I made a factory reset but this did not help and , even worst, I could not end the initial TV configuration because the TV switched off during channels search.
I needed to disconnect antenna, to complete channel serach without finding any channel and after that I upgraded to latest FW ver 2126.
Now TV is like new and is very fast.
Now I would like to root TV with the widget for latest FW but after that I would like to downgrade to an earlier FW (should it happen again).
Does anyone have any old FW available for this TV ?