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CHARGERS
Home A.C./Travel chargers will operate within the temperature range of: 0°C (32°F) to 45°C (113°F).
The chargers designed for your mobile device meet with the standard for safety of information technology
equipment and office equipment use. Due to different applicable electrical specifications, a charger you
purchased in one jurisdiction may not work in another jurisdiction.
LICENSES
microSD logo is a trademark of SD-3C, LLC.
The Bluetooth
®
word mark and logos are owned by the Bluetooth SIG, Inc. and any use of
such marks by Device Manufacturer and its affiliates is under license. Other trademarks and
trade names are those of their respective owners.
The Wi-Fi Logo is a certification mark of the Wi-Fi Alliance.
9
Troubleshooting ..........................................
Before contacting the service center, you are advised to follow the instructions below:
• To have optimal operation, fully charge the battery.
• To improve the phone’s performance, remove unnecessary files or apps on your phone.
• To update your system software, use the
System update
command in your phone’s settings.
• To set your phone to factory default, use the
Reset
options
in the phone’s settings. All your phone data
will be lost permanently. It is strongly advised to fully back up your phone before resetting.
My phone can't be switched on
•
If the phone can't be switched on, charge for at least 10 minutes to ensure the minimum battery
power needed. Then switch it on again.
My phone has not responded for several minutes
•
If your phone doesn’t respond, turn off your phone by pressing and holding the
Power
key until it
turns off and then restart it again.
My phone turns off by itself
•
If your phone turns off by itself, make sure that the Power key is not accidentally pressed.
•
Check the battery charge level.
•
If it still doesn't work,
Factory
reset the phone via the Reset options in the phone’s Settings. Make
sure you have backed up your data.
My phone can't charge properly
•
Make sure that you are using the proper charger that comes with the phone.
•
Make sure that your battery is not completely discharged; if the battery power has been discharged
for a long time, it may take around 10 minutes to display the battery charging indicator on the screen.
•
Make sure that charging is carried out under normal conditions (0°C (32°F) to 55°C (131°F)).
•
When abroad, check that the voltage input is compatible.
•
Check that the charging port is secured or it’s not damaged.
Содержание REVVL 4
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