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ozshadow

macrumors 6502
Original poster
Oct 29, 2011
330
35
This is more to find out what is the safest, most compatible method.

Should I have my old iPhone updated to a particular iOS before creating a final backup to have the best fallback security if something goes wrong transitioning to a new 16 Pro?

I may not have the old iPhone if I do a trade in.
 
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