Pixhawk firware issues

Hello I am having issues with my Pixhawk. It was working just fine, until recently when it was not responding consistently. So I decided to reinstall the firmware, which seem to work at first. When I reconnected it to the computer, it was not recognized. I got passed that, now I am to a point where the Pixhawk flashes yellow. I try and reinstall the firmware, but it keeps having errors. Any suggestion or help?

Fixed…