Samsung Galaxy A41 Instruction Manual page 147

Operating terminal
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Trouble
Become hot • While operating or charging, or if you operate
while operating/ apps for a long time while charging, the terminal
charging. or adapter may become hot. There is no operation
problems and you can continue to use it.
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. When the operation time is too short
even if the terminal is fully charged, contact
"Technical Inquiries & Repairs" (in Japanese
only) on the back cover of this manual or a repair
counter specified by DOCOMO.
• Is the multiple apps booted? Close the apps you
are not using. → P.43
• Set Bluetooth to OFF when you are not using. →
P.132
No operation is • Is the screen locked? Press [Side key] to unlock
performed even screen lock.
when tapping the → P.31, P.113
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 docomo • Is the docomo nanoUIM card installed with a
nanoUIM card is correct direction? → P.24
not recognized.
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.125
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.123
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.126) 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.
145
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
seconds 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