Depending on how you manage your network, there are two primary ways to obtain and apply updates:
In very rare cases (e.g., RMA or offline recovery), a support engineer may provide a direct file. You cannot download this from the public support portal. If you absolutely need a standalone file: aruba 1930 firmware download
Here is the proper content and guidance for downloading firmware for the (JL479A, JL480A, etc.). Depending on how you manage your network, there