Have you had to change your Google or Gmail password recently and now your phone doesn't sync? Below is how to change the password in your iOS, iPhone or iPad. I have attached a helpful video to show exactly how to change. Hope it helps!
1. Click Settings
2. Scroll down to Accounts & Passwords
3. Click on your Gmail account
4. A box will appear for Re-enter Password, click box
5. Fill in your password, if you use two-step authentication like a Google Text code, enter there.