Once the update is finished, remove the SD card and delete the firmware file on your computer before using the card for recording again. Critical Precautions
The device should detect the file and ask to update (or start automatically). Do not press any buttons or unplug the power until the screen indicates completion. gazer h511 skachat proshivku
Only use firmware specifically for the H511. Using firmware for the H521 or other models can "brick" the device. Once the update is finished, remove the SD