Nokia 3310

Page 109
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Reference information
109
Copyright
 © 
2004 Nokia. All rights reserved.
PUK code
The PUK (Personal Unblocking Key) code is required to change a blocked PIN code. 
The PUK code may be supplied with the SIM card. If not, contact your local service 
provider for the code. If you lose the code, contact your service provider.
PUK2 code
The PUK2 code, supplied with some SIM cards, is required to change a blocked 
PIN2 code. If you lose the code, contact your service provider.
Barring password
The barring password is needed when using the 
Call barring service
 function (see 
). You obtain this password from your service provider.
■ Battery information
Charging and discharging
Your phone is powered by a rechargeable battery.
Note that a new battery's full performance is achieved only after two or three complete 
charge and discharge cycles!
The battery can be charged and discharged hundreds of times but it will eventually wear out. 
When the operating time (talk-time and standby time) is noticeably shorter than normal, it 
is time to buy a new battery.
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