Question about Cell Phones
If your Phone displays invalid sim card message on screen,it is locked to network.You need to unlock it.What is phone brand,model,IMEI number,network and country it is locked.Specify these and get unlock code from the site Mobileunlocksolutions.com and unlock easily.Then use any GSM network sim card in it.It will not display Invalid Sim card message on screen.If your phone is an iphone get remote unlocking service from the site and unlock easily.
Posted on Jul 25, 2013
Since you say it is a GO phone, you need to call ATT and they may help you with that.
Posted on Jul 24, 2013
a 6ya expert can help you resolve that issue over the phone in a minute or two.
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Posted on Jan 02, 2017
SOURCE: Sim Card Problem In LG Vu
This happened to me too. A temporary fix is turn off your phone and put it in front of a really cold air conditioner for about ten minutes. Then turn it on but make sure you keep it in front of the ac to keep it working. What happened is your sim card reader has a thermal problem so you will need to take it in unless you want to spend all your time in front of the ac (which will get expensive...)
Posted on Jul 08, 2009
Turn off the iPhone before inserting the sim, insert sim, turn on, import contacts. If you put the sim in the phone without restarting it for some reason it doesn't get all the contacts sometimes.
Posted on Oct 01, 2008
SOURCE: Invalid sim
That's cause your phone , you buy bundle with sim card, so provider protect phone to use sim by other provider, or you ever set phones password to use sim, if nothing like that go to service center to solved your problem.
Posted on Nov 01, 2008
SOURCE: invalid sim message on i68 phone
i've got the same problem. Both sim slots work, but doesn't seem to accept vodafone and O2 sim. Seller in China states 'never had this problem before' Looking at the responses here I start to doubt that. Any solutions?
Posted on Dec 31, 2009
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