Hi, I've had a Mini 1 for 3 years with no problems or crashes. I installed a micro sd card and carried out an in drone format using the remote control / Iphone. When I started the format, the gimble started a cycling jerk to the left. This continued indefinitely, so I attempted to switch the drone off. There was no responce to the power button. After numerous attempts to switch off, I removed the battery. When I reinstalled the battery, and attempt to switch on there are no lights at all. When I attach the charge cable, no lights come on. I suspect the main board because the memory card dock, charge port and gimble connector are on that board. Has anyone seen this type of fault or can suggest any checks I can make to identify the cause. Thanks.