Android 14 and fully erasing data

Hi folks.

I'm looking for some help with fully erasing my phone before a trade in to upgrade. I got my phone about 6 months ago and i'm changing it for a new phone this week (i get free early upgrades). I have previous experience of data recovery with general hard drives, and understand that data is never fully deleted unless overwritten, but i have little experience in mobile phone recovery.

I am looking to obviously wipe all data off …

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