
Do not turn off the device or disconnect the cable during the update.
Make sure that the firmware file is saved in the root directory of the microSD card.
Some or all settings may return to their default values after a firmware update.
After the update is complete, connect the microSD card to a computer and delete the firmware file.
Alternatively, back up any required data and format the microSD card.
If connection or configuration problems persist, restore the device to its factory settings.
If the main unit cannot be operated, use the reset pin to press the reset hole on the rear of the device.

Restoring the factory settings will reset the Wi-Fi and recording settings to their default values.