I had a Roku device for 2 years without a problem it failed so I bought another this one displayed ok in menus but when a channel selected would only display in top left corner of screen, replaced it with another this one started set up ok but after update only displays ROKU start up screen then screen is blank can hear bleep sounds when remote control opearated but nothing else have tried on toshiba set @ LG tv both with same results also tried reset & different hdmi cables and power supplies
Is this issue only happening on a specific channel or does it happen on all channels? Can you provide a screenshot of the issue you are seeing?
Can you please provide us with the following information: -Roku device model -serial number -device ID -software OS/version (these can all be found in Settings > System > About) -does this issue occur on a specific channel? if so, what channel and what version/build is the channel (this can be found be selecting the channel on the Home screen and pressing the * button) -tracker ID when this issue occurs (when you see this issue occur, press the Home button 5 times, followed by the Back button 5 times)
Once we have this information, we will be able to investigate further.