Hey guys I have a phantom 3 advanved and having trouble updating firmware. My copter has been sitting for about 3 months so it has not had a update in awhile. I downloaded the new firmware from DJI and inserted it into the SD card and it is the only file. I inserted the SD file into the copter and I am getting repetitive yellow blinking lights. Can anyone help me on why this is going on? What does it mean exactly.