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I'M HAVING PROBLEMS W/ MY PHONE, INVALID SIM CRD- IT'S THE SIM CRD I BOUGHT HYDRO. ITAKE OUT SIM CRD & BROKE OFF SIM CRD - NOW MY PHONE HAS,"NO SIM INSERTED!" PLEASE I WANT ANOTHER PHONE!!! THANK U
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Did you buy the Doro second hand? If you bought it brand new take it back to where you bought it and they should be able to sort it out for you, often free of charge.
If you bought it second hand you'll find most mobile phones are 'Locked' to a specific network so you have to buy one of their sim cards. A sim card from another network will not be recognised by the handset and it will give you the "Invalid" message you're getting.
Try this. Turn off the phone, remove the sim card and turn the handset back on without the sim in it. Don't worry this won't damage the phone. There should be a logo or name on the screen showing who the registered network is. If the network is different to the sim card you have the phone won't make calls or send texts.
There is a reasonably easy, (and often cheap), fix for this. Take the hand set to a good phone repair shop and for a small fee they should be able to 'Unlock' the handset to where it will accept any network's sim cards.
If your Nokia X6 16 GB Displays invalid sim card while inserting other Network GSM sim card like MTN ? It is locked to network.You need to specify which country and network it is locked now.I have bought an Nokia X6 16GB in INDIA but it was locked to Australia Vodafone network .I have unlocked it and now using it in USA AT&T network sim card.So you can unlock your Nokia X6 16GB from current network lock using the unlock code from the site Onlinegsmunlock.com after unlock it use with MTN network sim card or any GSM pay as you go sim card it will not display invalid sim card message.
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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