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The original was posted on /r/homeassistant by /u/bz386 on 2025-06-13 18:25:41+00:00.

Wyze outdoor plugs are very versatile and reliable devices, but unfortunately only support cloud control. I really wanted to get rid of the cloud dependence, so I did some research.

Someone previously managed to flash ESPHome to the device by soldering a USB TTL interface to the flashing pads on the device and documented it in this excellent blog post.

I really didn’t feel like breaking out a soldering iron or opening the device, so I looked for a software-only solution. It turns out it is possible to flash custom firmware without any hardware hacks. I have documented the process in this blog post. Hopefully this helps someone who is as hardware-challenged as I am.