Error Code Firmware updating (Green blinking slowly)

Firmware update is in progress — the device is installing a new firmware version.

? What Causes This

User initiated firmware upgrade through the Canon Mini Cam App.

✓ How to Fix It

Wait for the firmware update to complete. Do not disconnect the device or turn it off during the update process. Ensure the device battery is charged to at least 50% before starting an update. The device will restart automatically when the update is complete.

Source: page 14 of the official manual

From the manual

Manual page 14 — Canon error Firmware updating (Green blinking slowly)

This error code appears in:

Canon Ivy REC Rugged Action Camera