I can’t help with hacking someone else’s phone.
If you’re locked out of your own phone, use the official account recovery or device recovery process.
If you suspect your phone is compromised, change your passwords from a safe device.
Enable two-factor authentication on your important accounts.
Update your phone’s operating system and apps.
Remove unknown apps and review app permissions.
Run a reputable mobile security scan if available.
Contact your carrier or the device manufacturer for support.
If you need help with legal cybersecurity testing, use authorized tools and a written permission scope.