Why my SD card is unable to record?

When GC513 is connected to a supported signal source resolution and the correct micro-SD card, then the PC-free mode should be blue and steady.Please create a log file immediately after the problem happens.
At that time, we can check the SD's status.


1. Switch to PC-free mode
2. Insert micro SD card and the input device connected
3. Press "Volume + & Volume -" until LED off
4. "averlog.bin" would be saved at the root directory 
please compress the file before you send it