: He plugged the camera into a stable power source to avoid a mid-update blackout.
For the APEMAN A77, the firmware landscape is barren. There are no "hidden features" or massive performance boosts waiting for you in an update. apeman a77 firmware update
Ensure the camera is fully charged or connected to a stable power source. Insert the card into the camera while it is powered off The Ultimate Guide to the Apeman A77 Firmware