Samsung GT-I5500 用户手册

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页码 108
Troubleshooting
89
Your device freezes or has fatal errors
If your device freezes or hangs, you may need to close 
programs or reset the device to regain functionality. If 
your device is frozen and unresponsive, press and hold the 
Volume key up and [
] simultaneously for 8-10 seconds. 
The device will reboot automatically.
If this does not solve the problem, perform a factory data 
reset. 
In Idle mode, open the application list and select 
• 
Settings 
 Privacy 
 Factory data reset 
 Reset 
phone 
 Erase everything.
When the device is turned off, simultaneously press the 
• 
Volume key up and down, and then press [
]. When 
an exclamation mark appears, press the Home key to 
reboot.
The touch screen responds slowly or 
improperly
If your device has a touch screen and the touch screen is 
not responding properly, try the following:
Remove any protective covers from the touch screen. 
• 
Protective covers may prevent the device from 
recognising your inputs and are not recommended for 
touch screen devices.
Ensure that your hands are clean and dry when tapping 
• 
the touch screen.
Restart your device to clear any temporary software 
• 
bugs.
Ensure that your device software is upgraded to the 
• 
latest version.
If the touch screen is scratched or damaged, take it to 
• 
your local Samsung Service Centre.