I am on a live aboard currently and an extremely frustrated with T1. It worked only first couple of dives and later it works normal at the surface via ANT but as soon as I descent below few meters, connection is gone for good. No reading throughout entire dive. As soon as I am back at the surface, it works ok.
Obviously AI unit that does not work underwater is pretty much worthless. I set it to max power, replaced the battery. Last night updated my mk2i to 8.20, still no success. Firmware on t1 is 2.50.
so what now?