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If the Nokia N70 says INVALID SIM means it locked to Network ,you need to Unlock it...Get the unlock code at here Classicunlocking.com and unlock the NOKIA N70 easily then use any GSM Network Sim card...
What is Mobile Phone Brand and Model? If you insert Sim it shows Invalid Sim means it locked to some Network,You need to Unlock it,You can get the Unlock code from here Prounlocking.com Then you can use any GSM Sim in the Phone,it will not show "INVALID SIM"
Invalid SIM and Unregistered SIM are two different problems. Invalid SIM means the phone is locked to a certain company and you are trying to use a SIM card for another company. Unregistered SIM means the SIM card you are using is not active and you need to contact your service provider to get it activated. In order to unlock the phone so you can use anyone's SIM, you must contact the provider that the phone is locked to.
i have the same problem i keep on putting my sims in (one tesco sim & one voda phone sim) and it said the same thing invalid sim. the sim regestars for about 2 seconds then it either says invalid sim or emergancey calls. whats a matter with it should i send it back.kjr2502
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