Hi,
I can dfu successed by using PC's nRF Connect with 2xDKs, but can't dfu by using Android's nRF Connect. For mobile's dfu, just enter 'DfuTarg' and auto conn, but could not see any data in trasmit in the dfu's uuid. And after a while, 'DfuTarg' disconn and ota failed and I don't know why