_AXS_,
You shouldn't need to update your firmware. What you can do is extract the firmware from your player, then MODIFY it to have the images you want then reupload back onto your player. This will be SAFER than using someone else's firmware as it might cause your player to die.
There is a sticky on the [Mods and Themes] section of this forum which will guide you through the steps. Try following those and if you have problems, let us know, we are here to help out one another
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