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Trouble
The operation time
• Is the terminal left for a long time out of service
is short.
area? Staying outside of the service area may
consume much power to search available radio
waves for communication.
• The operating time of the internal battery varies
depending on the operating environment and the
secular degradation of the internal battery.
• The internal battery is a consumable accessory.
The usage duration of the battery per 1 charge
decreases gradually each time the battery is
recharged. Even if you sufficiently recharge the
terminal but usage time significantly decreases
differ from default state, this means that the
internal battery needs to be replaced. We takes
the terminal to replace the parts as a chargeable
service. Check "Warranty and After-Sales Service"
(P.139) since the repair's reception desk will be
taking care of the service.
• Is the multiple apps booted? Close the apps you
are not using. → P.41
• Set Bluetooth to OFF when you are not using. →
P.122
No operation is
• Is the screen locked? Press [Side key] to unlock
performed even
screen lock.
→ P.30, P.106
when tapping the
touch screen.
The touch screen
• It may be occurred when large amount of data
reacts slowly when
is saved in the terminal or transferring large-size
a screen is tapped.
data between the terminal and microSD card.
• Do you attach a protection sheet on the terminal?
The operations may be impeded by the protection
sheet.
The nanoUIM card
• Is the nanoUIM card installed with a correct
is not recognized.
direction?
→ P.23
Check and remedy
Trouble
Time is incorrect.
• It may be occurred if the terminal keeps turned on
for a long time.
Check if "Automatic date and time" is set to ON,
and turn on the terminal at places where signal is
strong. → P.115
Terminal becomes
• It may be caused by apps installed to the terminal
unstable.
after purchase. If problems improve when you
start in Safe mode (a function to activate the
terminal in a mode similar to default), problems
may be improved by uninstalling the app.
- To start Safe mode
- For using Safe mode, back-up the required data
- Note that apps or widgets you created may be
- Safe Mode is not normal activation. Usually exit
Terminal reacts
• Confirm the internal memory usage of the terminal
slowly/Behaviors
and obtain memory by ending some activated
become unstable/
programs. → P.113
Some of the
program cannot
activate.
Data is not
• Turn off and on the power. If it does not solve the
displayed properly/
problem, trying "Factory data reset" (P.116) may
Cannot operate
improve the symptoms. Note that the operation
the touch screen
erases all data saved on the terminal. Make sure
properly.
to back up necessary data beforehand.
134
Check and remedy
Press [Side key] for 2 seconds or more when
power is OFF, and after Galaxy logo appears,
continue to press Volume DOWN key.
When power is ON, press [Side key] for 1
second or more → touch and hold "Power off" →
tap "Safe mode".
* When Safe mode starts, "Safe mode" appears
on the lower left corner of the screen.
* To terminate Safe mode, turn on the terminal
again.
beforehand.
removed.
Safe Mode and then use the terminal.
Appendix
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