Power On/Off; Security Password - Haier B8305 User Manual

Note: SIM card is a computer chip containing protocol details, security
information and personal phonebook, etc.

2.4 Power on/off

Ensure battery is properly installed.
Power on and hold [End key] button until boot screen appears.
To power off, hold [End key] until Sliding interface shutdown appears，then
sliding shutdown.

2.5 Security password

You can use access password to avoid unauthorized use of your SIM card.
2.5.1 PIN code
PIN code is used to prevent illegal use of user's SIM card. If your cell phone has
enabled PIN code protection, there will be prompt for entering PIN code. If
wrong PIN code is entered for three times, SIM card will be automatically locked.
You have to enter PUK code so as to unlock it. PIN code is related to SIM card
instead of the cell phone, and is provided by network service operator.
2.5.2 PUK code
PUK code, referring to personal unlock code, is used to unlock SIM card that is
locked because of wrong input of PIN code. If wrong input of PUK code amounts
to ten times, SIM card will lose efficacy. PUK code is provided by network
service operator.
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