Android OTA is still broken sadly. Even when using the older (recommended) version of nRF Connect
#Meshtastic Tip
OTA firmware upgrades via Bluetooth are a useful way to update RAK4631 nodes that are in difficult to access locations. They don’t work well from iOS devices however as I discovered the hard way.. The firmware update failed and left the node in DFU mode needing to be connected via USB to update. Apparently this is a common issue trying to update using iOS. I haven’t tested an OTA update using Android yet but I have heard from others that it works well.
https://meshtastic.org/docs/getting-started/flashing-firmware/nrf52/ota/
Discussion
I know some of the people in our local Meshtastic group here had been successfully using it on Android. I was assuming it was working for them just with the older nRF Connect app but I’ll have to find out exactly what they are doing.