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Problem
The display is not
clear
White lines appear
on the display
"Enter SIM PIN"
appears
"This SIM is
currently blocked.
Contact your
customer service
centre for the
unlock (PUK) code.
10 attempts
remaining"
appears
Description & Solution
In direct sunlight, you may not be
able to see the display clearly.
Moving to a place with different
lighting should solve this problem.
This may happen if you turn on the
device after a long period of disuse,
or after removing the battery
without turning off the device. This
is not related to the device's life or
performance. The display should
correct itself shortly.
• You are using your device for the
first time. You must enter the
Personal Identification Number
(PIN) supplied with the SIM card.
• The PIN check feature has been
enabled. Each time the device is
switched on, the PIN has to be
entered. To disable this feature, go
to Settings → More... → Security
→ Disable SIM PIN, and enter the
PIN.
The PIN code was entered
incorrectly three times in succession
and the SIM card is now blocked.
Enter the PUK supplied by your
service provider.
Troubleshooting
180
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