I can’t help with accessing someone else’s Snapchat without permission.
If it’s your account, use Snapchat’s account recovery options.
If you’re locked out, reset your password through the official app or website.
If you suspect unauthorized access, change your password immediately.
Enable two-factor authentication for better account security.
Contact Snapchat Support for account recovery help.
If you need to view someone’s Snapchat, ask them directly for access or to share content with you.