Pilots follow checklists. In case of anything ever going wrong or even just getting in the aircraft they go through a checklist. The error popped up and the ch

Pilots follow checklists. In case of anything ever going wrong or even just getting in the aircraft they go through a checklist. The error popped up and the checklist said 'try x' and 'x' didn't work so it probably said 'if you can divert, do that', so they did.