I have an LG G4 phone running Android 5.1.
For various reasons I have had to change the password of my Google account (I'm using 2 factor authentication).
My problem now is that I cannot see how to see how to change the Google account password on the phone.
I can navigate to Settings | Accounts & Sync | Google.
That shows my current gmail address folllowed by a section heading DATA & SYNC.
But I can't see any way of updating my password.