How to Remove and Change Gmail Account on Android Market without doing Factory Reset from your Android Phone

When  tried to remove (settings->accounts & sync) the gmail account that was used during the initial phone setup, it erase almost anything on your phone, like contacts, photos, messages etc, and prompted this message ->

Remove account
This account is required by some applications. You can only delete it by resetting the phone to factory defaults.

You can simply change, erase and register new or another Gmail account, but you have to do a Factory Reset. To do a factory reset of your phone will make you set it up again from scratch. But I have a simple tips how to remove or change your GMail account on Android Market without doing a Factory reset.

1. Download the application Root Explorer from Android Market
2. Once already downloaded or installed the Root Explorer,
Explore to /data/system/ and find this file : accounts.db
3. Delete that file (accounts.db)
4. Reboot your Android device.
5. Then you can register another account again.

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How to Add, Remove or Delete Facebook , Exchange and Gmail accounts on Samsung Galaxy S II I9100

Here's a simple guide if you want to add and or remove any network accounts on your Samsung Galaxy S II. This may help you remove old Email,Gmail, Facebook account or multiple accounts that you no longer use on  Samsung Galaxy S II.

Adding an account on Samsung Galaxy S II:

1. Open Settings, the tap on the Accounts & sync selection

2. Tap on Add account

3. Select the type of account to add (Microsoft Exchange, Facebook and Google are available by default)
4. Follow the on-screen instructions to configure your account (depending on account type, you will be asked to select what kind of data to sync to your device)
5. When complete, the account is added to the list in the Accounts & sync section and data will begin synchronizing to your device

Removing an account on Samsung Galaxy S II:

1. Open Settings, then tap on the Accounts & sync selection
2. Select the desire account you want to remove or delete
3. Then Tap Remove account

4. A pop-up message appear: Do you really want to remove this account? removing it will also delete all of its messages, contacts, and other data from phone.
proceed?

Just confirm that you want to remove the account by tapping on Remove account or tap on Cancel if you selected the wrong account
Remove account
5. Your account will now be deleted

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