How to Delete or Add Gmail Account on an Android Phone

If you are a Google fan and you are using a smartphone with Android OS, then probably you want to manage your Gmail account on your mobile device. How to add a new Gmail account to an android phone? Or how can I delete or remove current account from my android phone without leaving anything? Such questions may be what you want to figure out if you are new to the Android world.

Today, I'll show you a step by step guide to help you get that done. And I'll take Samsung GT-i5700 for example as I am using it right now.

How to Add a New Gmail Account to an Android Phone

1. Open the Menu -> Settings -> Accounts & sync -> Add account.
2. Then you will see 3 options (Corporate, Facebook, Google) for you to choose. Click "Google" and then you'll go to the section of "Adding an account".
3. Click "Next" -> "Already have a Google Account" - > "Sign In". 
4. Now your Google account has been successfully added. 
5. Note: you can use more than one Google account on your phone (such as your home and work account).

However, sometimes you already have attached an account to your phone but want to remove/delete it when you want to resell the phone or have other personal usages with high phone privacy security. Well, it is also quite simple to get that done.

How to Delete Current Gmail Account on an Android Phone

1. Still open the Menu, go to Settings option, then Account & sync, move to your account right under Manage accounts. 
2. Click your account and you'll see Data & Synchronization tab. Move down to the bottom and you'll see Remove account. 
3. Then it will hint this "Do you really want to remove this account? Removing it will also delete all……". If you have backup the data (Contacts, SMS etc), then just hit Remove account. 
4. Depending on the situation, it may pop out a message warning "This account is required by some applications. You can only remove it by resetting the phone to factory defaults (which delete all your personal data)……"
5. Then back to Settings -> Privacy -> Personal data -> Factory data reset. Click Reset Phone option and Erase everything.
6. Then your phone will restart again and back to factory settings. Note: all your phone internal memory files (such as Contacts, SMS, Call log etc.) will gone, while the external memory stuff on your sd card will remain intact.

Deleting a Google account is a little more complicated than adding a new one, so better make sure you've backed up all your important data, just in case you may lose some data.