This vid helps Fix error code 8015D02E while trying to log into your Xbox Live profile via PC or Xbox console.
To resolve this issue, assure your Live email account has NOT been blocked. To do so, sign in to your Microsoft account using your computer and change your password (use a strong passcode later): Sign in to your Microsoft account@ account.microsoft.com/. Verify that you are the account owner by receiving a security code via text or email and then correctly entering it online.
Click Next. Change your password when prompted.
After changing your password, review your security contact information to ensure an attacker didn't change anything. You'll be able to correct your information as needed. See more info@ goo.gl/aq727X. Go back to your Xbox console and sign in with your Microsoft account email address and your new password. Additionally, perform a thorough malware check on all of your devices (e.g., PC, laptop, etc.), using the recommended avast Internet Security in this video guide.