I've not flown my Spark in over a year because the last time I did it went into Atti mode and I almost lost it. The batterys have been on the charger since then also. What steps need to be taken before I give it another whirl?
Thanks
I've had some butt pucker moments with mine as well over the years, but I maintain VLOS and use colored strobes to help with the orientation when it happens and be able to remain calm to figure out what's going on.
Since it's been over a year, do you still have the device that you flew with that day?
The flight records may be available and could be evaluated by following the instructions here.