My brother was using this phone before I activated my account on it but he ask me recently of his account and very unfortunately I couldn’t remember so I wanted to know if there is any option you can help me retrieve the account
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If your brother doesn't remember his Apple Account information, he will have to go through the recovery process.
How to use account recovery when you can’t reset your Apple Account password - Apple Support
If your brother doesn't remember his Apple Account information, he will have to go through the recovery process.
How to use account recovery when you can’t reset your Apple Account password - Apple Support
How do I retrieve a previous user’s Apple Account on my iPhone?
