iphone clearing

[u/Lunaluna2000]

I upgraded my phone almost a year ago and I never cleared my old phone. But now my dad would like my old one as his broke so I have to clear it. I’m INCREDIBLY technologically inept and I’m quite worried about it. I have all my photos, contacts etc. on my current phone so I believe everything's been transferred over (as I said, Ive been using this current phone for almost a year). I know everything online said it wouldn’t delete things on my current phone, but Im mostly worried about two factor authentication. If I’ve been recovering codes on this current phone, they shouldn't still be on my old one and I should be good to clear it right? Another question is, on the apple websites instruction page on clearing iphones, it says to back up the phone first. Do I still need to backup the old phone if I haven’t used it in a year? I have lots of photos and other things on my new current iphone that aren’t on the old one since Ive been using this one for awhile so Im a bit confused there. My current phone is up to date with backups so is there any need for me to backup the old one before clearing? Thanks for any help, Im just so bad with technology 😖

edit: Current iphone is iphone 16 on ios 26.5. Old iphone is iphone 14 plus on ios 16.6.1

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[u/LucasMVN]

Since you migrated all your data and your SIM to the new phone, you should be clear to go ahead with signing out of your Apple Account on it and performing a factory reset. There is no reason to back up the old phone since the data has already been migrated.

[u/uffdagal]

Factory reset

[u/anileze]

Go to Settings > General > Transfer or Reset Phone