HELP! How to upgrade 14pro max with iOS beta18.0 to 15pro max

[antonioconte]

Struggling to get the right course of action on this. Just wondering, if I now have an iPhone 15pro max, will I be able to do the usual upgrade from older iPhone 14 Pro Max phone to newer 15 pro max phone, even though mine is running the beta iOS 18.0 (22A5338b) ?

I am really concerned I might lose my data as maybe the Beta won’t just transfer straight will it with a standard usual phone to phone migration as I have done before? It’s the first time I have ever installed betas since the last time I upgraded iPhone.

The iPhone newer 15 pro max has 512gb and so has the 14pro max

I have 328gb free on the 14 pro max

I "think" I have everything backed up to the cloud but never 100% - hope I have.

 

[NicoTRZ]

just wait a few hours:

the RC (aka probably the final version) of iOS 18 will be released right after the event.

After the release, upgrade your 14 pro max to iOS 18 RC, then configure the 15 pro max as a "new" device (without data transfer), upgrade it to iOS 18 RC and then reset it.

After that, you are good to make the transfer as usual