I tried updating the RC firmware to 1.4.30 via the DJI GO app, and it was still going after 15 minutes of beeping. I decided (stupidly!) to power off the RC and try again. Now the RC does not beep when powering up and just shows a light-blue LED (not darker blue like when the firmware was updating. DJI app does not see it. Any chance to recover the RC after I stupidly interrupted it?