Yeah, they already did that like they always do, when the solar storm was at its peak weeks ago.

The normal mitigation for those events was not enough this time apparently. A plane was affected and had an in flight issue after the solar maximum was done and there shouldn’t be issues from it.

That’s why this is such a big deal. This hasn’t happened before on this scale. They’re making sure that every plane that might have been affected by storm damage has known good software loaded now. That’s why its not every A320, just the ones they’ve determined were potentially vulnerable. Most likely those actually flying around during the maximum time, with the Earth’s magnetic field 30k feet less thick above them.