I bought an apm2.6 from china and worked fine for a while but now when I try to update the firmware it cant connect it is apm mini pro side pins. All I get when I plug in is solid green led.it flicks blue occasionally during update try but nothing else. Reinstalled everything from the beginning and nothing. Had everything working before. Just wanted to reinstall a fresh firmware and start from scratch.very annoyed with the whole problem, ready to scrap apm. Any help at all on this issue? Ive searched everywhere and think I bricked it somehow? One issue I remember unplugging the usb accidentally while in updating firmware. ANY ideas. I have a lot invested and Im stumped.