Agree CPUSE is the way to go, just make sure it is using the latest DAService version (Build 1439) before starting the R80.10 upgrade to maximize your chances of success. Upgrade of the DAService daemon will happen automatically if the gateway can reach the Internet, if it can't see sk92449: Check Point Upgrade Service Engine (CPUSE) - Gaia Deployment Agent to manually upgrade CPUSE/DAService via rpm first.
Also it never hurts to take a manual snapshot before commencing the upgrade, especially when crossing a major version boundary (i.e. R7X ->R8X).
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Second Edition of my "Max Power" Firewall Book
Now Available at http://www.maxpowerfirewalls.com
Attend my online "Be your Own TAC: Part Deux" CheckMates event
March 27th with sessions for both the EMEA and Americas time zones