Hi, I do not know why, suddenly my camera does not work. When I press the "Power" button, only the blue right LED on the front of the housing is on. I tried to update the firmware via DirectUSB in accordance with the instructions, but I receive the following message: Found 1 AMBA device! Init DRAM approx. Found 1 AMBA device! Init DRAM approx.  Wait device re-init ...  Not found. BLD execute failed.  Failed !! Please help.