Tap>downloads>choose a product>R510(or the model you have>Search for the code you require, example 22.214.171.124.100>Download>accept the term if are required.
B: Now the file it’s in the download on your computer, so you can continue with the next step.
Tap> Access Points >disconnected>choose the AP with the pending upgrade>Upgrade>Local upgrade>browse>Choose the file you download from our support page>Now you will see the loading bar increasing>after its complete click upgrade>After list is displayed as "Success 100%" in the Upgrade Progress column, click Reboot. A "Rebuilding the Network" progress screen appears. Wait until the process completes.