Dissconect inputs during ESP32 update?

[LocalHomeAssistant (Private Vitols)]

Hi. I have noticed that OTA (and perhaps also USB) update does not have an effect on ESP32 while sensors (DHT, BMP280, Soundboard) are connected to device. Strangely OTA update log indicates all good. But config works like first time flashed no changes.
If I disconnect 3.3V feed from ESP32 to sensors, then OTA update does have effect (changes in .yaml take place).
Is there some info out there, what could cause this? Or is it standard practice to disconnect device during update? (Does not make sense then)

ESP-WROM-32 Devkit V1

RPi 3B
core-2021.9.4
supervisor-2021.09.0

[tom_l]

ESP32 restart randomly - nothing special, only 2xpcf8574, ina3221, htu21d, and webserver

Yeah you have enough 5V power but the 3.3V LDO regulators fitted to the cheaper Chinese boards barely have enough current to transmit. So if you are supplying any of the sensors with 3.3V that could be your issue. Buy quality boards like this one to avoid that isse:

[LocalHomeAssistant (Private Vitols)]

Thanks! So it might be that during update esp board has a greater current draw right?
Any comments on how Esphome knows if this update is successful since log shows just that? I’d like to read up on this topic to help close the knowledge gap between these abstraction levels.