Samsung 8.9 用户手册

Getting Started       11

You can choose the type of Screen Unlock you want to use, from 

Pattern, PIN or Password. For more information, refer to “Location and 
Security” 

Troubleshooting

If your device has fatal errors, hangs up, or freezes, you may 
need to reset the device to regain functionality.

• 

If your device is frozen and unresponsive, press and hold the Power/

 for 10 to 15 seconds.

Android System Recovery

Android System Recovery is used for Google updates. The 
average user should never need to perform a system recovery.

If you entered this menu by mistake, use the Volume Up/Down key to 

select reboot system now, then press the Power/Lock Key

. 

Your device then continues to boot up.

To enter the Android System Recovery mode, follow these steps:

Turn the device off.

Press the Volume Down Key 

and then 

press the Power/Lock Key 

 at the same time 

until the device switches on.

Volume Down is the end closest to the Power/Lock Key.

Once the SAMSUNG logo appears, release the Power/Lock 
key while continuing to press the Volume Down key.

Continue to press the Volume Down key until the Android 
System Recovery / Downloading screen displays.

Release the Volume Down key.

Press the Volume Down key to toggle between 
Downloading mode and System Recovery mode. Make 
sure the System Recovery mode (on the left) is blinking.

Press the Volume Up key to enter System Recovery mode.

The following options are available:

• reboot system now: Turns on your device.

• apply update from /sdcard: Not applicable for your device.

• wipe  data/factory  reset: Deletes all data from the device except 

captured pictures and videos. For more information, refer to 
“Factory Data Reset”  on page 148.

• wipe cache partition: Deletes all cache data, such as log files.

Press the Volume Up/Down key to scroll up or down, then 
press the Power/Lock key to make a selection.