Monoprice PID 8743 Wireless N ADSL2 Modem and Router 802 11N WPS Function 2T2R 300Mbps - Manual (Page 123)

ADSL2/2+ Router
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3. After clicking “Ok”, you will see the procedure bars.
4.5.8 Update Software
Update Software enables you to upgrade the device to improve its
system stability. The upgrade steps are as follows:
1. Click “Update Software” to display the “Tools -- Update
Software” screen.