My dataflash wasn't working so I replaced the memory chip. Still didn't work so it must be the socket. I asked about functionality without dataflash and got this reply.
Hi Greg,
Thank you for contacting 3D Robotics Customer Support.
I have an APM2 that I was playing with a year ago or so. I would hook up a battery and log my commute then watch it on Google Earth. That was with Arduplane 2.5. I decided to get it back out and use it on a tricopter. I installed the latest Mission
Is it possible to just attach a receiver battery to the APM2 to log flights without any servos hooked up. If so, how? I plug the battery in and it seems to lock on sats, but I get no log files. I get a log file being written while it is connected to