GardePro B180C Instruction Manual page 35

If there is a upgrade firmware, it will show a new version and
you can press OK to upgrade and then press OK on YES.
3) Camera update
It is nearly the same with Monitor update.
If you have prepared the upgrade firmware, it will show a new
version and you can press OK to upgrade page.
In the upgrade page you can press Down/Up to select the
camera, then you press right to shift to YES and press OK on
YES. Then you can see the progress bar on your monitor, just
wait the camera to upgrade, restart and reconnect.
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