I did the st16 update through an sd card and it went perfect. I tried updating the drone like normal by sd card and the st16 said the update failed only a few seconds in. Right away I shut down the drone and st 16 so I could re dowload the update to sd card. When I went to power up the drone, no lights come on and the drone only turns on the cgo3+ while i hold the power button. Once I release the power button, it all dies.....Any ideas before I call cs?