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Phone Lock
The phone lock protects your phone from unauthorized use. By default, the phone
lock function has disabled. You can change the default phone lock code (0000) into
any numeric string in the range of four to eight digits.
Do remember your phone lock code. If you forget it, contact the service center.
PIN and PUK
The personal identification number (PIN) protects your SIM card from unauthorized
use. The PIN unblocking key (PUK) can unlock the blocked PIN. Both PIN and
PUK are delivered with the SIM card. For details, consult your service provider.
If you enter wrong PINs for a specified number of times consecutively, the phone
asks you to enter the PUK.
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