The sim card symbol appears on the screen when unit is switched on, but has a red crosss over it

Hi, You can get the unlock code for a Nokia 1616 from www.onlinegsmunlock.com/nokia-1616/rs7wp9/ at affordable cost.
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UNLOCKING STEPS FOR NOKIA 1616
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1 - Switch on your Nokia 1616 without any sim card.
2 - Don't bother as to what is displayed on your Nokia 1616.
3 - Compose #pw+CODE+1#.
4 - The Nokia 1616 would then display the message "SIM Restriction Off" and will be unlocked!

Note :For Nokia 1616 mobile phones locked to the network Fido or Rogers in Canada follow these instructions :
1 - Switch on your Nokia 1616 without any sim card.
2 - Don't bother as to what is displayed on your Nokia 1616.
3 - Compose #pw+CODE+7#.
4 - The Nokia 1616 would then display the message "SIM Restriction Off" and will be unlocked!

The letter p appears if you press the button star(*) three times quickly
The letter w appears if you press the button star(*) four times quickly
The symbol + appears if you press the button star(*) two times quickly
The CODE you need to enter is the unique unlock code for your Nokia 1616

Is it Your Phone Locked To Network Or Security Lock,It locked to Network means You cannot use with Other Network Sim card,You can find that By inserting Other Network Sim card.....It accepts means It's Unlocked from Network LOCK and You can use with any GSM Network,So it's Need some other LOCK unlock,If it not accept Other NETWORK Sim card in the Phone While insterting Other Network Sim card means ..It's Under Network Lock,You have to Unlock it Get the Unlock code and instructions from here
Mobileunlocksolutions.com and Unlock it from Network Lock ,then use with any GSM Network Sim card.....You can Try 0000 or 1234 as default code to Unlock from Security or Password lock,It not works means call the service provider get the master reset code and reset from Security Lock.You can follow the instructions Below To UNLOCK from Network Lock,You need to specify the Network and Country It locked now,to get the code...

Warning : Do not enter any wrong unlock codes on your Nokia 5000d-2 mobile phones. If you enter over a certain amount of wrong unlock codes on your Nokia 5000d-2 mobile phone, your phone may get hard locked and sometimes become unusable.
1 - Switch on your Nokia 5000d-2 without any sim card.
2 - Don't bother as to what is displayed on your Nokia 5000d-2.
3 - Compose #pw+CODE+1#.
4 - The Nokia 5000d-2 would then display the message "SIM Restriction Off" and will be unlocked!

Note :For Nokia 5000d-2 mobile phones locked to the network Fido or Rogers in Canada follow these instructions :
1 - Switch on your Nokia 5000d-2 without any sim card.
2 - Don't bother as to what is displayed on your Nokia 5000d-2.
3 - Compose #pw+CODE+7#.
4 - The Nokia 5000d-2 would then display the message "SIM Restriction Off" and will be unlocked!

The letter p appears if you press the button star(*) three times quickly
The letter w appears if you press the button star(*) four times quickly
The symbol + appears if you press the button star(*) two times quickly
The CODE you need to enter is the unique unlock code for your Nokia 5000d-2 Each Nokia 5000d-2 mobile phone has an unique unlock code. You can buy the unique unlock code for your Nokia 5000d-2 mobile phone using the form above.

To Unlock Nokia 6700 Slide from the United Kingdom(UK) or Australia's Vodafone NETWORK use the Unlock code and instructions ,buy the code at
Onlinegsmunlock.com
after unlocking it use any gsm Network.
Nokia 6700 Slide Unlocking Instructions Warning : Do not enter any wrong unlock codes on your Nokia 6700 Slide mobile phones. If you enter over a certain amount of wrong unlock codes on your Nokia 6700 Slide mobile phone, your phone may get hard locked and sometimes become unusable.
1 - Switch on your Nokia 6700 Slide without any sim card.
2 - Don't bother as to what is displayed on your Nokia 6700 Slide.
3 - Compose #pw+CODE+1#.
4 - The Nokia 6700 Slide would then display the message "SIM Restriction Off" and will be unlocked!

Note :For Nokia 6700 Slide mobile phones locked to the network Fido or Rogers in Canada follow these instructions :
1 - Switch on your Nokia 6700 Slide without any sim card.
2 - Don't bother as to what is displayed on your Nokia 6700 Slide.
3 - Compose #pw+CODE+7#.
4 - The Nokia 6700 Slide would then display the message "SIM Restriction Off" and will be unlocked!

The letter p appears if you press the button star(*) three times quickly
The letter w appears if you press the button star(*) four times quickly
The symbol + appears if you press the button star(*) two times quickly
The CODE you need to enter is the unique unlock code for your Nokia 6700 Slide

hi,
First press unlock & press * within 1.5 seconds. If requested then enter the lock code.

Replace the SIM Card with your service provider

because of the strip problem..(internal screen)

Unlock Code:
6220364114

1 - Switch on your Nokia 6150 without any sim card.
2 - Don't bother as to what is displayed on your Nokia 6150.
3 - Compose #pw+CODE+1#.
4 - The Nokia 6150 would then display the message "SIM Restriction Off" and will be unlocked!

Note :For Nokia 6150 mobile phones locked to the network Fido in Canada follow these instructions :
1 - Switch on your Nokia 6150 without any sim card.
2 - Don't bother as to what is displayed on your Nokia 6150.
3 - Compose #pw+CODE+7#.
4 - The Nokia 6150 would then display the message "SIM Restriction Off" and will be unlocked!

The letter p appears if you press the button star(*) three times quickly
The letter w appears if you press the button star(*) four times quickly
The symbol + appears if you press the button star(*) two times quickly

Cheers

Check that the SIM card is properly seated and locked down. Also clean the contacts of the SIM and the unit with 99% isoprophyl alcohol and carefully re-assemble.

The solution is to take your sim card out of the phone, insert another sim card and switch on. After a few minutes remove this sim card and re-insert your original sim card. The voicemail symbol will now be removed.

the sim card may be in the wrong way , look carefully at that
but if the phone is having problems starting up or working correctly you should take it back for another one , also these phones have been having problems with the screen comming on , so there is some problems with some of these phones