Troubleshooting; Android System Recovery - Samsung DoubleTime SGH-I857 User Manual

Samsung doubletime android smartphone sgh-i857 user manual (ver.f5)
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Troubleshooting

If your device has fatal errors, hangs up, or freezes, you may
need to close all programs or reset the device to regain
functionality.
If your device is still responsive, but a program is frozen, close the
program using the Task Manager. For more information, refer to "Task
Manager" on page 13.
If your device is frozen and unresponsive, press and hold the Power/
Lock Key
for 8 to 10 seconds.

Android System Recovery

Android System Recovery is used for Google updates. The
average user should 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 then
continues to boot up.
To enter the Android System Recovery mode, follow these steps:
With the phone turned off, open the phone and press the
1.
Power key and the T key at the same time until the phone
switches on.
15
Once the AT&T logo appears, release the Power key while
2.
continuing to press the T key.
Continue to press the T key for at least 8 seconds, until
3.
Recovery mode is launched and the Android System
Recovery screen is displayed on the outer screen.
Release the T key.
4.
The following options are available:
5.
• reboot system now: This option turns on your phone.
• apply sdcard:update.zip: This option allows you to apply updates
to your phone.
• wipe data/factory reset: Deletes all data from the phone except
captured pictures and videos. For more information, refer to
"Factory Data Reset" on page 130.
• wipe cache partition: Allows you to delete all cache data such as
log files.
Use the Volume Up/Down keys to scroll up or down, then
6.
use the Power key to make a selection.

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