Learn how to fix the error force close loop on the Nexus One device when the app on the phone keep restarting itself and you can't do anything else.
When installing an app to try it out, it can be buggy and cause your phone to keep restarting the app over and over again until you got tired of it. You can fix this problem by going into Safe Mode and remove the offending app. Here's how:
1. Switch off the phone the normal way, if you can't they try to pull out the battery.
2. Start up the phone by pressing the Power button.
3. Then the logo appears, immediately press and hold the trackball (or you can use the Menu button) until you see the lock screen appears.
4. Shortly a home screen appears and you will see Safe Mode words in the left bottom hand corner.
Now you can go in and remove the buggy app that crash your phone.