Airbus grounds A320 aircraft amid solar radiation risk (aerospaceglobalnews.com)

Curious how a software update can be rolled back to mitigate a "solar radiation risk" (which would typically imply a hardware radiation susceptibility issue). Perhaps the software update comes in the form of new EEPROMs, something like that?

It'll be kind of like OTA Autopilot updates that can recognise corner cases like a big white semi trailer?