How to upgrade firmware on SP888V3?
Open the web management. Under the root "Tools/Upgrade", you can see the page as photo below. Click "Browse" and assign the firmware then click "Start" to start up the process. Wait about one minute; you can see the LEDs blinking and then steady. Now you can check the firmware version is the new one. Sometime, you see the firmware version does not change. At this moment, please click "Tools\ Internet Option" at the top of IE Browser; delete Temporary Internet Files". It will spend one or two minutes if you had never done such process. Reload the web page then you can see the firmware version has been changed to new one.