Learn how you can start you Samsung Galaxy S II in Safe Mode to troubleshoot issues.
When you first have your device you may have installed a lot of the apps to test them out and see which one you like and which one you don't. On occassion you may face a bad app that has bug in it and it can cause your phone's operating system to misbehave it self. If you phone is not working properly you could go into safe mode and remove those offending app. Here's how:
1. Switch off the phone by pressing on the Power button.
2. Then turn the phone back on, while it is turning on press and hold the Menu button.
3. Now continue to hold the Menu button until you see the Home screen. On the home screen you see it say Safe Mode on the left hand corner.
4. Now that you are in Safe Mode you can go and remove any buggy apps that you don't want to keep.
When you are done in Safe Mode, you can get out of it by pulling out the battery, wait for one minute and the put it back in. Boot your phone up normally and you will be in the standard usable mode.