Supporting ZSUN Wifi Card Reader (16MB Flash, 64MB RAM, AR9331)

That did the trick. Thank you so much for your help, Bruno. That you've contributed your time and energy to this device and continue to be here to help people out is amazing.

For anyone looking to breathe new life into this tiny router, I want to mention the 'travelmate' OpenWRT package. It allows you to setup multiple Wi-Fi connections and automatically changes between them according to availability and their ordered priority. Having this installed means we don't have to worry about losing access to the admin page because the previously used Wi-Fi network is no longer available. So far it seems to be running well on 22.03.03.

My next step is to try using the Zsun to share an in-flight Wi-Fi connection, so I could have one sign-in for both my phone and laptop. We'll see whether that works (the 'travelmate' package does have features for captive portals, but I know they can be tricky). I realized the Zsun is basically perfect for the task though due to it's size, USB connector, and limited throughput (~17 Mbps peak for me).