Used note 5

[AC Question]

So I purchased a note 5 a few days ago and it's asking to sign into the last g mail associated with phone I put in my credentials. It first said I had to wait 72 hours but my mail alerted me of that a note 5 accessed my account so I said yes. (My security settings in Gmail) so the 72 hors is up but I can't get into my account ?? Please help!!!!!

 

[belodion]

If the account associated with the phone is not yours, entering your account details is useless. Had you already entered your details, then reset the phone or something?
The email is presumably advising you that someone used your(?) or the original account holder's(?) details on a device not associated with your(?) or someone else's(?) account.
Your question is not really clearly stated. Please describe everything clearly step-by-step. https://forums.androidcentral.com/showthread.php?t=409154