Cyrus CM 17 Hybrid Manuel de l'utilisateur - Page 19
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13. Common Problems & Solutions
If malfunctions occur during operation of your mobile phone, please
consult the following troubleshooting table:
Problem: Weak signal
Possible causes
Solutions
If the mobile phone is used in
Try to avoid this.
areas with a weak signal, such
as buildings or basements, the
radio waves cannot penetrate
properly and communication may
be disturbed.
If the weak mobile phone is used
Try to avoid this.
during peak hours with increased
call volumes, it may not be
possible to make calls due to
network congestion.
Base stations may be too close
Ask your mobile phone provider
or too far away, which can cause
for a map of the area.
network disturbances.
Problem: Echo or noise
Possible causes
Solutions
Caused by bad main line, regional
Hang up and call again.
problem.
Regional bad line.
Maybe this time you'll get a
good main line.
Problem: Cannot boot up
Possible causes
Solutions
Caused by bad main line,
Hang up and call again.
regional problem.
Problem: Shorter Standby Time
Possible causes
Solutions
The standby time is related to the
Turn off the phone in an area
network system settings.
with poor reception.
The battery must be replaced.
Please replace the battery.
Because the phone is constantly
Please go to a place with a
searching for a base station, it
strong signal or turn off the
consumes a lot of battery power,
phone.
which reduces the standby time.
Problem: SIM card error
Possible causes
Solutions
SIM card is damaged.
Contact the network provider.
SIM card not installed.
Make sure the SIM card is
inserted.
Dirt on the SIM card metal
Brush the metal contacts of the
surface.
SIM card with a clean brush.
Problem: No calls possible
Possible causes
Solutions
Call barring has been activated.
Deactivate the call barring.
Call number restriction is
Deactivate the call number
activated.
restriction.
Problem: Cannot create a new phonebook entry
Possible causes
Solutions
Phonebook memory is full.
Delete part of the phonebook
memory.
19
Problem: Cannot charge
Possible causes
Solutions
Damaged battery or charger.
Battery or charger must be
replaced with a new one.
Charging in environments below
Provide a more moderate
-10 °C or above 55 °C.
temperature environment.
Bad contact.
Check the plug connection for
correct contact.
Problem: PIN error
Possible causes
Solutions
Incorrect PIN code entered three
Contact your network provider.
times in succession.
Problem: No connection to the network possible
Possible causes
Solutions
SIM card is invalid.
Contact your network provider.
Outside the GSM or 3G network
Contact your network provider
range.
for this area.
The signal is weak.
Please go to a place with a
strong signal and try again.
Problem: Cannot perform a particular function
Possible causes
Solutions
The network provider does not
Contact your network provider.
support this feature or you have
not applied for it.