Sorry but there are no more replacement remotes for that model of roku. Your only hope is used on ebay. Roku 3 remotes pair with 3500 purple stick, which plenty available on ebay. Its a larger remote, it has headphone jace which is useless on your stick. But the volume keys will control a tv volume if the tv has hdmi-cec feature, so it would by wifi from the remote to 3500 stick, and then cec signal through hdmi connector and controls the tv volume. Look for RC03 remote. Make sure there is only one Dot under the blue & green buttons.If it has two then it won't work because its bluetooth remote and not wifi.