I am not really familiar with your model, but generally speaking if you just dump the firmware into the box, it does not always apply. You often have to perform a factory reset or factory set or a restore procedure (whatever they may call it) in your box menu.
It is almost akin to rebooting your PC when you install a new program or an upgrade to existing software. It keeps running with the old version of the file until the system is rebooted somehow.
I am not sure if that is the case for your situation, but I would read up on it.