How to update from ios 10.3.3 to ios 12?
It says I have to update to ios 10.4 to proceed but there’s no option to update to ios 10.4
Is there a better way to update to ios 12 from ios 10.3.3?
You should be able to backup the device to iTunes, then use iTunes to install the current version of iOS. If you're still running iOS 10 then you may well have 32-bit apps that won't work with iOS 12. You should review them before you commit. Rolling back is not an option. See How to see which apps won't work in ios 11 for details.
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