How do I check what firmware version is installed on my Nextbase 122HD?
After the Dash Cam has restarted, open the Setup Menu by pressing the 'Menu' button twice and scroll down to 'System Info'. Press the 'OK' button to select this option and the firmware version will be displayed on screen. (Page 5)
From the official Nextbase 122hd Dash Cams manual, page 5
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