1 answer
Hello,
In general terms, you can't; they exist or they don't depending on the model of unofficial ROMs which are tricky to implement and whose functionality isn't guaranteed to the point that it could permanently crash the device, and in any case, the range is limited, the hardware doesn't necessarily allow you to skip the number of desired versions, so if for example you jump from Android 4 to a maximum of Android 7 you won't be any better off.
Thank you for your reply!