[rester324]

Also: > The radiation corrupted data in the ELAC - a computer used to operate control surfaces on the wings and horizontal stabilizer.

[Zetaphor]

It's unclear to me how a software update is supposed to help this component with radiation shielding

[doctorwho42]

Redundancy.

Unless they had total component failure, its most likely localized and if you create redundancy like RAID - you may be able to counter whatever they are seeing as a failure mode. Or at least reduce the likelihood of impact on the flight giving them time to replace components on the ground