A story of WiFi secrets, UART lockdowns and a damaged flash memory chip

Dear Fell owl ship, just as we announced in our previous post, our beloved God Debugger has seen fit to cast his divine light -laden with opcodes- upon his humble servant, and we have a new homily here in our temple. Please, take a seat and listen to the story of how one of our owls, along with his brother-in-law, moved on to dissect the next component of the Eufy ecosystem: the Eufy HomeBase 2.

We focused our analysis in Eufy Homebase2 instead of Homebase3 because, as we explained in From your doorbell to your home network it’s the version that I found deployed in my city, and also was the easiest to buy. The firmware version we analyze here is 3.4.2.2h (2026-06-05 18:45:48)