I've been using my Roku Streaming Stick model 3810x for over a year now without any problems. But since installing the latest software upgrade 11.0 - build 4184-50 I've been getting overheating error message
The 3810 is an older model. Roku OS 11 would not cause the issue. It could just be your Roku has an internal failure. Try doing a factory reset
Hey @rob8922
Thanks for reaching out here in the Community.
We would recommend trying first the suggestions available in this Support link: What to do if the red light is on or you see a “Your device is overheating” message. If the issue persists, please provide us with the following information for further investigation:
With more information, we will be able to assist you further.
All the best,
Kariza
Sometimes it is a coincidence when an issue develops and it coincides with an OS update. Other times, it is not.
Are you using the HDMI extender available for free from Roku (https://my.roku.com/hdmi#!) that will help to give you a little more distance from the heat of your TV. You can also just make these yourself. Just place it between the TV and the Streaming Stick. (These may be currently backordered as other cables so may just have to purchase in-store or online - just a female and male HDMI connector cable.) Looks like these cables.
Some users have also reported using the power adapter directly plugged into wall helps in some situations if you are currently plugged into the TV's power USB port.
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Edited... See that @RokuKariza-D is currently helping you. 👍