A couple years ago, my mom got her first smartphone—a cheap, Android-based Alcatel, carrier branded. Coming from a feature phone, this was going to be a whole new world for her. I helped her set it up and went through the basics. Along the way, I signed into Google Play using my Gmail account, not thinking too much into it. Part of the reason being, she never had an email address and wouldn’t know the first thing about installing or updating apps. Using my account would make it convenient.
I later realized that probably wasn’t the best decision, since my emails were showing up on the device and she started calling asking to find out what is ‘screenshots for groovyPost article’. So, I decided it was time to set up her own Gmail account even if she was never gonna use it. What I didn’t realize was how not obvious it is to switch or remove existing accounts on Android. In this article, we’ll show you how.
Remove or Switch Accounts in Android
One of the obvious places to check on an Android phone is located in Settings > Google. There you will see Gmail and other accounts registered with the device. There is just no way to remove an account or sign into another one from it. So, how exactly to do you take an account off the device?
Well, it turns out, it’s right in front of you; head on over to google.com, click your account picture then click My Account.
Under Sign-in & security, click Device activity & security events.
Scroll down and you will see a list of devices where your Gmail account is being used. Click Review Devices to manage them.
Click on the name of your device then click Remove. That’s it, your Gmail account is removed. Proceed to restart your device to confirm changes. Give it some time to set in.
When you attempt to sign into Google apps and services on the device, you will be prompted to setup or sign in with an account.
Source : Google Help Center Number