Samsung YP-GS1CB-XAA - Manual (Page 21)

Getting Started 17
Safe Mode
You can boot your device into Safe Mode if you want to
troubleshoot whether added applications are causing
problems with the device. Safe mode only loads basic
system software.
1. Make sure your phone is turned off.
2. Press and hold the Power/Lock Key ( ) to boot up
your device.
3. After the animation starts to display, repeatedly touch
(Menu).
When the Home screen is displayed, Safe mode is
displayed in the lower left corner of the screen.