Thanks for posting in the Roku Community!
I'd be happy to take a closer look to see how we can help get you up and running. To better understand the issue you are experiencing, can you please provide us with more detailed information about the issue you are experiencing? How are you powering your Roku device? Is the device plugged into the TV USB port or is it plugged into a wall outlet? Have you tried plugging the Roku device into a different HDMI port on your TV or a different TV, to test and isolate the issue? Have you already tried performing a factory reset on the device?
We would recommend disconnecting your wireless network, then rebooting your Roku device to see if your Roku device is experiencing the same issue. Once the device passes the freezing screen, try reconnecting your wireless network.
Please keep us posted and we'll continue assisting you from there.