Been flying with APM for 1 1/2 years now so not a noob but also no expert. Today something weird and frustrating happened.
While setting up for an auto/ mapping mission I went through all my pre-flight checks, made some last adjustments on the camera gimbal, uploaded the photo mission via mavlink and changed the battery setting from 4000mah to 5000mah. Then I disconnected and changed over to the 5000mah flight battery but after APM bootup all the esc’s started beeping (this has never happened before) so I rebooted again and again but always beeping. So I connected via mavlink and it tells me “PreArm – RC not calibrated” so I recalibrated the radio but this does not work, so I check the radio trims and re-calibrated the esc’s (since they were beeping) and did radio calibration again but nothing works. I packed everything up and went home mumbling profanities.
On further inspection now I see all my APM settings are gone, everything appears to be default settings, my flight modes are all stabilize, PIDs are all changed, battery is 3s 3300mah which I do not even own, ect. ect. Can anyone please help explain what has happened here? I have been flying this particular quad since last fall with no issues and yesterday I did 3 auto/photo missions with a Nex5n with awesome results. I really hate to start over setting up the APM, it was flying so great and suddenly it appears erased. Sadly I did not have a .param file saved since I did not foresee this happening.
The only thing I did that was out of the ordinary was changing the battery setting to 5000mah (initial setup - optional hardware - battery monitor). It was a bit hard to see my laptop mouse in the sun but I don’t believe I clicked anything else (like Wizard) other than I uploaded a mission.
Now on the computer things also get a bit strange, before this event at 15:09 today all the telemetry logs went to a folder LOGS_QUADROTOR_1. While I was in the field the logs started going to a new folder LOGS_QUADROTOR_179, this is about the time I started having problems.
One more thing that may (or may not) be related, I can not retrieve the data flash logs, if I try to get them over Mavlink I get “Error, Cannot get log list” And I can no longer connect via USB because I now get a Windows message (via Device Manager) telling me “Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged.”
I am using Mission planner 1.2.95; Arducopter 3.1; Windows 7 64bit
It looks like I will have to update everything and start over, is there a way to restore it from the Tlogs, or maybe an older Dataflash log?
I really hope somebody can shed some light on what may have happened here so I can take measures to prevent it happening again. I attach one Tlog before this event and one after not sure if it will help anyone, quad never left the ground today.