When the app detects the remote, it's in a state that prevents us from updating it. That's why there are some very important details: remove the batteries, keep the app closed while plugging it in and holding down the buttons, release them, and then reopen the app without unplugging it.
Maybe you're missing one of these little details. If not, we can update the firmware from the admin panel. But let's try one more time, and if things continue the same, I'll help you update it from the admin panel.