I try to transfer my old iphone to my new Samsung phone.. I had enter my password a few times, even setup a new password and it still give me an error saying it's the password. So not able to transfer my pics and texts..

even setup a new password and it still give me an error saying it's the password.

Then see this Apple article: What to do after you change your Apple ID or password

What to do after you change your Apple ID or password - Apple Support

You are sign in here .  .  .  with your Apple ID & Password.

Your Apple ID is the personal account you use with all Apple products and services. It includes the email address and password you use to sign in, as well as the contact, payment, and security details that you use with Apple.

You can’t merge multiple Apple ID accounts.