Samsung GT-I5500 User Manual page 89

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.
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
→ →
phone Erase everything.
→
•
When the device is turned off, simultaneously press the
Volume key up and down, and then press [
an exclamation mark appears, press the Home key to
reboot.
Reset
→
]. When
89
Troubleshooting