Selling old phone - is solely factory resetting it sufficient enough to wipe everything?

Returning a pixel that I installed GrapheneOS on in exchange for a newer model. I have been using the phone for a couple weeks and I love Graphene, no issue with it whatsoever - bought a cheaper Pixel just to “test” it on and its great - so I decided to make the permanent switch and just upgrade the phone now so I have a couple years extra coverage and some more storage during this time.

Is a full factory reset (and of course removing Graphene and reinstalling stock OS) sufficient enough to ensure no data is left behind? Is software like Extirpater necessary or not?

Thanks :slight_smile:


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Factory resetting wipes the keys from the secure element, so yes, factory reset is enough.

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