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Nokia N72 sim card not valid - Cell Phones

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If your phone Nokia N72 displays invalid sim card,it is locked to network.You need to unlock it.Visit the site get the unlock code and unlock easily.

Posted on Jul 23, 2013


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Posted on Jan 02, 2017

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SOURCE: SIM card not valid

Hi thee, I list here the possible reasons for "Sim card not valid"

1 - The phone is locked to a different network. In this case the phone usually accept the sim card the same , and has no network, but sometimes it may return the error message. Unlock the phone at a local shop.

2 - the SIM card is faulty. Test the card on a different phone to find out.

3 - The phone is faulty. Test the phone with different Sim cards, if the Phone returns same error on all cards, then the phone is faulty.

Posted on Mar 28, 2009

  • 96 Answers

SOURCE: I want to change sim card in my nokia N72


I think u have some problem with removing back cover of ur phone

To change sim card follow below instruction

1) Turn off your mobile phone (press switch off button on top of the phone)
2) Remove back cover by pressing unlock button on the cover & slide cover upwards gently (please take care you would not force the camera cover)
3) Remove Battery From the phone & u will see ur current sim or sim slot
4) Check instruction & insert your sim


Posted on Mar 30, 2009

  • 54 Answers

SOURCE: sim card not valid

Friend i have same cell phone and i am also facing this problem but dont worry

go to network menu and select Automatic network that problem will be solved if not them show it in to nokia care

Posted on Jul 22, 2009

  • 1 Answer

SOURCE: How can I open my nokia n72 phone to insert a SIM

just turn backside ur mobile you will see the small oval shaped button below .just press it with ur nails and pull downwards.urs back side panel opens .just simple

Posted on Jul 28, 2009

  • 1912 Answers

SOURCE: i put my telstra sim

Yes....You need To Unlock the Mobile...Nokia N97,For Unlocking it You can use the Unlock code,You can get the Unlock Code at reliable cost at and Unlock it successfully......

Posted on Oct 25, 2010

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1 Answer


it may be due to network lock, contact service provider , else you can get unlock codes here
you need to specify the country and network provider

Dec 20, 2010 | Nokia N72 Cellular Phone

1 Answer

My cell work on offline mode but if i insert sim i get error as sim card not valid

This is a problem with the sim card. Return the sim card to the mobile provider and make a formal complain so a new card can be issued to you. When sim cards get scratched or bent to an extent they get spoilt. Also if the card has been in use for a long time it begins to malfunction as wear and tear begins to reflect on it.
Hope this solution has been helpful?

Nov 30, 2010 | Nokia N72 Cellular Phone

1 Answer

It always appear ö my

it may be due to phone lock , you can get unlock codes here

Nov 25, 2010 | Cell Phones

1 Answer

Sim card not valid n72 after writing pm

You can try Unlock code from the Online site...

Oct 13, 2010 | Nokia N72 Cellular Phone

1 Answer

My phone is boot only offline mode , other wise show the only "SIM card not valid"

take the sim card out and put it bak in, c if it works, if not try some other sim card and c if the problem is with phone or sim.

Nov 01, 2009 | Nokia N72 Cellular Phone

1 Answer

Mobile shows "Sim Card not Valid" where sim card is OK

Are you using the same cell provider? Example: Cingular phone and Cingular Sim Card. Because you can't use say a T-Mobile phone and Cingular Sim Card. Don't really know a solution just thought maybe this might help.

May 08, 2009 | Nokia N70 Cellular Phone

1 Answer


ur sim has a prblm. ur cel is workin absolutly f9. try out vid another sim. n get ur sim replaced.

Jul 09, 2008 | Nokia N72 Cellular Phone

1 Answer

Nokia N72

sounds like a manufacturer error....take the phones back to where you bought them from and have them exchanged

Jun 26, 2008 | Nokia N72 Cellular Phone

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