Samsung SGH-I777 User Manual (user Manual) (ver.f4) (English(north America)) - Page 120

Android System Recovery, Safe Mode, reboot system now, apply update from sdcard - problems

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Warning!: Performing a Factory data reset will erase all data from your phone and internal SD card, including your Google account, system and application data and settings, and downloaded applications. It will not erase current system software, bundled applications, and external SD card files such as music and photos. Android System Recovery Android System Recovery is used for Google updates but the average user will never need to perform a system recovery. Note: If you entered this menu by mistake, use the Volume Up/Down keys to select reboot system now, then press the Power key. Your phone will then continue to boot up. To enter the Android System Recovery mode, follow these steps: 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 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. 115 5. The following options are available: • reboot system now: this option turns on your phone. • apply update from sdcard: 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 114. • wipe cache partition: allows you to delete all cache data such as log files. 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 ( device. ) to boot up your 3. After the animation starts to display, continually tap the key until the backlight turns on behind the four bottom keys.

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115
Warning!:
Performing a Factory data reset will erase all data from your phone
and internal SD card, including your Google account, system and
application data and settings, and downloaded applications. It will
not erase current system software, bundled applications, and
external SD card files such as music and photos.
Android System Recovery
Android System Recovery is used for Google updates but the
average user will never need to perform a system recovery.
Note:
If you entered this menu by mistake, use the Volume Up/Down keys to
select
reboot system now
, then press the Power key. Your phone will
then continue to boot up.
To enter the Android System Recovery mode, follow these steps:
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 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 sdcard
: 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 114.
•
wipe cache partition
: allows you to delete all cache data such as
log files.
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.