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Getting Started 15
1. With the phone turned off, press the Power key and
Volume Up/Down keys at the same time until the phone
switches on.
2. Once the Samsung Galaxy S II logo appears, release
the Power key while continuing to press the Volume
Up/Down keys.
3. Continue to press the Volume Up/Down keys for at
least 8 seconds, until Recovery mode is launched and
the Android System Recovery screen is displayed.
4. Release the Volume Up/Down keys.
5. The following options are available:
• reboot system now
: this option turns on your phone.
• apply update from external storage
: this option allows you to
apply updates from your memory card to your phone.
• wipe data/factory reset
: deletes all data from the phone
except pictures and videos. For more information, refer to
“Factory Data Reset”
on page 134.
• wipe cache partition
: allows you to delete all cache data such
as log files.
• apply update from cache
: allows you to update your phone’s
software once it has been placed in the cache after you have
performed a Software update from the Settings menu.
• test redbend fota[FS]
: for development purposes only.
6. Use the Volume Up/Down keys to scroll up or down,
then use the Power key to make a selection.
Safe Mode
You can boot your phone into Safe Mode if you wish to
troubleshoot whether or not added applications are causing
problems with the device. Safe mode will only load basic
system software.
1. Make sure your phone is turned off.
2. Press and hold the power key ( ) to boot up your
device.
3. After the animation starts to display, continually tap the
key until the backlight turns on behind the four
bottom keys.
4. Press and hold the key.
When the Home screen is displayed,
Safe mode
is
displayed in the lower left corner of the screen.