I had a brain cramp, and clicked on the dji pro 4 update, oh well. Started doing the firmware (might as well). It connected fine and started the update. During the update my tablet screen went into sleep mode. I nudged it with my finger (to wake it up - to watch the progress) and the whole process stopped. I can't get it to start again... the button that says START TO UPDATE is grayed out. There is a note: Update Log: "You are in compatibility update or lacking update log. I'm not sure if that's standard or if it is a result of the firmware update stopping. I thought of using DJI asstant 2. Installed it, connected my drone to my computer... and nothing happens. It never changes the opening screen. I thought that maybe I could download the firmware file and download it to a usb card... but can't find any place to find it. Any suggestions ????