The instructions for V6 & V5s firmware upgrade.

1. Please format your micro SD card. 

2. Store the firmware to the root directory of your SD card (Don't change the file name or anything).

3. Connect the camera (with SD card) with the power socket (NOT Computer).

4. Enter the "firmware version" in Settings, click (NOT long press) the "up" button then you see "Prompt" in the display, click the "Confirmation".it will turn on automatically,that process needs about 5mins to finish.
  
5. Delete the firmware from the SD card to make sure no repeat update and Factory Reset on camera.

Important Note: Make sure NOT to DISCONNECT the power until the upgrade finishes.

