Question about RIM BlackBerry Curve 8310 Smartphone

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I have blackberry 8310 O2 service provider. I want to take out this SIm and replace with other sim. but it says Invalid Sim what shall I do?

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Go to BlackBerryMEP.COM and buy an unlock code, they will send unlock code along with unlocking instructions in 5 minutes .

BlackBerryMEP.COM .

Posted on Jul 16, 2010

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My problems of cell phone blackberry 8310 invalid sim solution


If your Blackberry 8310 says Invalid sim card.It is locked to network.You need to unlock it from current network lock.So that you can use with other network....Without unlocking you cannot use other network sim card.Visit the site Simpleunlocking.com get unlock code and get free unlocking instructions at Mobileunlockguide.com and unlock it step by step.

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I brought a blackberry curve 8310 off ebay, the seller said it was unlocked and would work on any network, my husband is on 02 and put his sim card in it. But the phone dosn't appear to be working. Can u...


how you know its unlocked?If any message you received when you insert the sim?
it may be due to network lock,you can get try unlock codes here http://www.onlinegsmunlock.com/blackberry-8310/rs7wp9/
you need to specify the country and network provider

Dec 17, 2010 | RIM BlackBerry Curve 8310 Smartphone

1 Answer

Invalid sim


1. (easyer way) When I got my Blackberry, I had to put it in a couple of times for it to work.

2. Buy a new sim card.
If this does not work, then check to see if it is unlocked.

Feb 04, 2010 | RIM BlackBerry Curve 8310 Smartphone

1 Answer

Blackberry 8320 sim support problem


You have to unlock your blackberry, in order to do so, visit http://blackberrymep.com and get your unlock code with instructions to unlock, it's fast and rapid, you will get your blackberry unlocked in five minutes .

Jul 22, 2009 | RIM BlackBerry Curve 8310 Smartphone

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Blackberry curve 8310 says invalid sim


how setting invalid sim ? cell phone setting or software plz ask me reason

Dec 21, 2008 | RIM BlackBerry Curve 8310 Smartphone

3 Answers

Sim Card Invalid


It sounds like the device is still locked to the original wireless carrier. What you need to do is have the device unlocked (if it is a GSM BlackBerry) so that it will work with other carriers. There are several vendors that provide cell phone unlocking services. I recommend checking out HorizonWirelessOnline.com.

Aug 21, 2008 | RIM BlackBerry Curve 8310 Smartphone

1 Answer

Invalid SIM card


Go to your provider and ask for a new sims card. They should give you one free of charge. This corrected the same problem for me.

Jul 09, 2008 | AT&T BlackBerry Curve 8310 Cell Phone -...

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Blackberry 8310


you can Unlock your Blackberry 8310 Curve with imei unlock code. it is very simple and eaisiat way to unlock your Blackberry. get your Blackberry 8310 Curve Imei Unlock Code . and use any gsm sim card.
i hope this will help you .

May 16, 2008 | AT&T Blackberry Curve 8300 Smartphone

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