I updated my R5s to firmware 1.5.1 in M mode instead of P mode.

[Alaska4Jim]

Experienced a "senior moment" and updated the firmware in both of my R5s while in Manual mode instead of P mode. I don't see any problems, but I thought I should ask you learned folks for your opininons. Thanks for any advice offered. 

[Tronhard]

I can't see any reason why this would make a difference.  I have updated my cameras in whatever mode they happen to be in.   According to my understanding, the process to upgrade firmware engages in the BIOS stack way below where a user will choose an operational mode, and thus that mode is irrelevant.

[Alaska4Jim]

Thank you very much for your reply. Much appreciated. 

[jaewoosong]

You can always backup your cam settings to your card.  I've done a lot of custom settings so I made a backup to my CF Express card.

[jaewoosong]

my "senior moment" -> remembering that I formatted my card and lost my backup cam file.  Should copy that to my computer to have an off-camera copy as I format my card frequently.