Were you able to replace your GPS puck or have you ruled that out as causing your problems?
Hi Droider, we have certainly been having issues with the A2s as well. A 550 kit has just arrived this morning which I will hopefully put together over the weekend. The idea is to put an A2 on it and rag the living day lights out of it to test each and every firmware update until DJI can produce something fit for purpose.
I have already detailed elsewhere the faulty new A2 that was installed on an equally brand new EVO where all the CCW motors all spasm-ed. Changing just the Main Controller Unit fixed all that.
Just a few subsequent flights seemed to confirm normal operation and so last week I used it on a shoot for an ITV crew here in Kenya and I have to say the whole rig performed flawlessly. The film crew was up against a very tight schedule so there was no time for messing about with stuff that didn't work, like unreliable downlink or FC issues. To make it all the more interesting the wind became rather boisterous.
One of the shots required chasing runners (as in marathon runners), flying at waist height until they were full frame before catapaulting into the sky to reveal the landscape around Lake Elmenteita in the Rift Valley and shooting off across the lake to startle the pelicans and flamingos into flight. This was all single operator LOS and from a distance of eventually 90-100 meters before the ascent. Not much room for error at that minimal altitude, particularly with the wind gusting to 30 kph.
The EVO/A2 handled it all without complaining and the GH3 on a Z15-GH3 produced fabulous, rock steady footage.
So it seems that buying the A2 is a bit of a lottery at the moment, whether you get a good one or a lemon! If you win the lottery and get a good one, it appears to function very well.
There is new app out for new firmware, on apple store now..