This was my first update since updating to 3.11 from 2.xx when I first bought my Helix LT. I'm aged 66 & no tech wiz, but I followed the (very clear) instructions & everything went perfectly, after noting the comments above regarding Helix Native, I've also managed to update that with no problem.
As has been said before : read the instructions first- it saves a lot of hassle. :)