Oh my, so it was working with the phone before? That’s too bad because when you factory reset, it clears everything – including the SSID and passphrase of your Wi-Fi network. Until that is reentered (which requires a real remote) the phone app won’t work. If you happen to have a universal remote laying around, and it has roku player codes, you could use that. I assume you’ve already tried basic stuff like changing the batteries in the remote. Oh and you may need to re-pair the remote after a factory reset (not sure about that!)
If that doesn’t work, on which side of a month old is it? Many stores have a 30-day exchange period, and some stores lengthen that during the holiday season.
Banned but back. Because why not?