Game updates will never install OFW or brick your console. The worst thing that can happen is that your game won't work anymore if you're on 3.55 CFW, so you would delete the update and would be good to go.
Originally Posted by zaalbarxx
Game updates are OK to install if you're on 4.xx CFW.
CECHL 500GB: OFW 2.50 > OFW 2.76 > OFW 3.41 w/ dongle > OFW 3.55 > 3.55 kmeaw > Rebug 4.30.1 > Rebug 4.30.2
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Off to my summer vacation, might be AFK for a while... Happy Summer!