I’m having a similar issue, where the blueSMiRF HID connects and then disconnects after a few seconds. Setting to fast mode doesn’t seem to work. Weirdly, the F,1 command just returns “ERR”, but ATMF appears to work. Not sure if they’re the same thing or not. Also, when connecting to an iPhone the connection doesn’t drop, the issue just appears to be with a macbook.
nmatsuda and I are using on the same piece of hardware. By changing to “Pair” mode ( SM, 6 ) I now get a consistent connection to laptop and desktop.
New problem: every 5 seconds the connection is interrupted (momentary red LED followed by 5 seconds of green LED & functionality).
It is so consistent and exact I I’m hopeful that something like “Fast Mode” would fix it. But I’m getting the same error when I try to enter F,1. Is there a prior step required?