Disposal of deceased’s iPhone
My husband has died and I would like to dispose of his iPhone and iPad but I can’t restore them to factory settings as I don’t know his Apple ID or password. They’re old so I have no receipts for proof of purchase.
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don't believe you need to restore them, you are not the only one who can't access his data without appleID password
if you wish to request them for access to his account How to request access to a deceased family member's Apple account - Apple Support
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