Cannot find device after removing it. about esp-homekit

[maximkulkin]

So, normally when you properly unpair a device (meaning, while being on the same network and device is online and accessible) it should get back to initial mode when you can pair again. If for some reason the device wasn't accessible when you have unpaired it, the device will still be paired, even though your phone will not. For such cases people usually implement some kind of reset functionality into devices, e.g. a dedicated reset button, or holding a normal button for a long time or some other procedures (e.g. I had a lightbulb that required turning it on and off five times in a row with proper delays to reset it as it had no buttons at all).

So, I suggest you revise your firmware and implement a convenient and accessible reset functionality. Also, prefer unpairing when device is online.