Android: Remove Gmail account without factory reset

You can reset your phone by doing a Factory Reset but that will erase all data (contacts, photos, etc) on the phone.

But if your phone has ROOT access, you can go about it in an easier fashion:

1. Download ES File Explorer from Android Market (free)
2. Go to settings and enable Root access
3. Explore to /data/system/ and find this file : accounts.db
4. Delete that file (accounts.db)
5. Reboot your Android device
6. Now you can register another account!

Also, doing a Factory Reset will NOT remove root access, so that's still an option!