1. Put upgrade file on your PC. No need to unzip, this software file format is .zip. As

2. Login OLT WEB interface, first save configurations. Then choose Advance Setting

-> System -> Upgrade to enter this page to upgrade full version. As show below:

3. After click “Apply” button, then start to upgrade, there will be a progress bar

reminder. When the progress bar reaches 95%, it will take about 2 minutes. Please

wait patiently until system reset. As show below:

4. After upgrade end, you can enter WEB to check whether upgrade successfully.