Power Off; Appendix; Appendix 1：Troubleshooting - Icemobile VIENTO II User Manual

5.24 Power off

Select this function to power off the phone, you need to
press end key for 2 to 3 seconds to power on or power off
the phone.
6

Appendix

6.1 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
receive
d signal
quality
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.
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
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