Question about Nokia N73 Cellular Phone

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Invalid sim and failed registration

I have a nokia n73 music edition, but it is made in china, any sim i insert the mobile, it indicates invalid sim and show failed registration.
How to get rid of this problem

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  • Anonymous Mar 17, 2014

    When I insert the sim in to the mobile and switch it on, it says SIM CARD REGISTRATION failed nokia 100

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  • 2,110 Answers

You have to first unlock it..

Posted on Dec 03, 2008

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1 Answer

N73 sim not valid


Is your Nokia N73 locked with any particular network?If so when you try to insert other network sim cards you will get the error "Sim not valid" or "Sim invalid" or "Sim not supported". Try to unlock the mobile.I suggest you can approach Theunlockarena.com and specify the country,locked network.Based on the availability you can get the unlock code along with free instructions.
http://www.theunlockarena.com/nokia-n73/rs13wp9/

Jan 13, 2014 | Nokia N73 Cellular Phone

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i want to suggest you to find 'registration key for ringtone maker with mediafire' in google

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Problem with the Nokia N73 Music Edition..
sim card registration failed

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i have a china made mobile n8 but after inserted it shows invalid sim what's the solution of this problem

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Sim card registration failed


Check that sim valid,
Check with another sim card if problem not shows sim card may complaint do as follows
Take the sim crd out and rub gently with a cotton cloth, and reinsert it.
Or take to service provider & ask him to give duplicate sim.
If problem with mobile try to dial *#7370#(Format),
Or take mobile to Nokia care(Problem might be network ic).

Sep 29, 2009 | Nokia N73 Cellular Phone

1 Answer

N73 Music Edition


Your sim might be damaged contact your service provider to get a new duplicate sim
Or your N73 were network locked please goto this site to get unloack code and instructions
http://www.unlockallcellular.com ,Thanks

Oct 31, 2008 | Nokia N73 Cellular Phone

1 Answer

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zim card has ben expired,or phone is'nt open line,go to the certified technician.

Oct 29, 2008 | Nokia N95 Cellular Phone

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you are on orange network if it says that and you must conatct your provider and get wap settings and url for registration on sim on the phone

Apr 02, 2008 | Nokia N73 Cellular Phone

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