I picked up a new P3 Advanced. It has 1.5.3 and I'm trying to roll that back to1.4 so the altitude recorded in the exif data for stills will be OK for photogrammetry. Everything I read says I should be able to go backwards one version but I'm having no luck. The Phantom gives me this message every time: Packet: P3S_FW_V01.04.0010.bin Result: Abort. The firmware on the SD card is identical to or older than the current firmware on the aircraft.Of course it's older ... I'm trying to downgrade. Anyone have any suggestions or am I stuck?