Appendix - Sky Devices SKY Prestige Manual De Instrucciones

Appendix 1 Troubleshooting
If you find exceptions when operating the mobile phone, restore the factory settings and then refer
to the following table to solve the problem. If the problem persists, contact the distributor or service
provider.
Fault
SIM card error
Poor received signal
quality
The mobile phone
cannot be powered on
Calls cannot be dialed
The mobile phone
cannot connect the
network
Cause
The SIM card is
damaged.
The SIM card is not
in position.
The metal face of the
SIM card is polluted.
Signals are
obstructed. For
instance, radio
waves cannot be
effectively
transmitted nearby a
high building or in a
basement.
Line congestions
occur when you use
the mobile phone in
high-traffic hours
The battery energy is
exhausted.
Call barring is
activated
The SIM card is
invalid
The mobile phone is
not in a service area
of the
GSM/WCDMA/LTE
network
The signal is weak
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Solution
Contact your network service provider
Check the SIM card
Clean the SIM card with a clean cloth
Move to a place where signals can be
effectively transmitted
Avoid using the mobile phone in high-traffic
hours
Charge the battery
Cancel call barring
Contact your network service provider
Move to the network operator's service area
Move to a place where the signal quality is
high