Question about Samsung SGH-t639 Cellular Phone

1 Answer

I used the SIM card that was on the Samsung phone and put it on my unlocked iPhone 3G to use it with T-Mobile and when I removed the SIM card and put it back to the Samsung-T639 now the phone says insert SIM card. Why did it do that and how can I fix it?

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  • Samsung Master
  • 8,404 Answers

I think you stepped on your own foot my friend. Call your service provider for assistance with this problem.

Posted on Jul 05, 2010

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Posted on Jan 02, 2017

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1 Answer

Vodafone uk


No The sim card for the older models is not the same size as the new iPhone 5. You can take your old sim card to your provider and they can make you a sim card to fit your new phone.

Aug 10, 2014 | Apple iPhone 3G

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Sim card for iphone 3g?


Yes, provided the iPhone 3G is not locked with any other different network. If it is then, you need to unlock the iPhone.To unlock an iPhone the remote unlock service would be a better option because, you need not give your mobile to someone else nor do you have any chance to enter the wrong unlock codes. To get such an unlocking service for your iPhone 3G approach Wickedunlock.com and by submitting the country and network to which the mobile is locked to you will be able to remove the restriction from the respective network. This will be a permanent unlocking solution. Once unlocked you can swap networks.The iPhone 3G supports Mini sim...and hence insert the respective sim size.

Apr 28, 2014 | Apple iPhone 3G

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I need unlock code for iphone 3g


For iphone, you can use remote unlock service to unlock it.You can get the remote unlock service from the site Simpleunlocking.com . Here,you need to provide the country,network provider name and IMEI number of your Phone.Then visit the site Mobileunlockguide.com . Here,they provide the free unlock instructions for your phone.After unlocking it,you can use different GSM sim card on your phone.

Jan 10, 2013 | Apple iPhone 3G

1 Answer

Sim card unlock for iphone 3g?


you can easily unlock your iPhone by using remote unlocking method to use any network . i suggest classicunlocking.com to get the remote unlocking service.they will email you your mobile phones unlock code and step by step unlocking instructions as soon as it's ready.

Oct 20, 2012 | Apple iPhone 3G

1 Answer

Restricted network


You have to Unlock your I-Phone 3g from O2 United Kingdom(UK) Network lock to use with other GSM Network Sim card.You can get the Remote unlock service from Wickedunlock.com/apple-iphone-3g/rs11wp9/ and Unlock it easily...

Jun 01, 2012 | Apple iPhone 3G Black Smartphone

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My iphone 3g 16gb need to unbrick and unlock


sure you can unlock it try remote Unlock service....

Aug 07, 2011 | Apple iPhone 3G Black Smartphone

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I want to unlock my iphone to use it with verizon


this is what you do
  1. get a unlock card Click Here
  2. get a Verizon Sim card click here
  3. Switch off 3G network: Setting---General---Network---Enable 3G---Off
  4. Turn off the iPhone 3G, take out the SIM tray, place the Unlock Card and the SIM card on the SIM tray, put back the SIM tray into the iPhone
  5. Turn on the iPhone
    There is NO NEED TO CUT YOUR SIM!
  6. Just Plug & Play!

Apr 05, 2010 | Apple iPhone 3G

1 Answer

I have a T-mobile sim and I need to unlock my Samsung SGH-D407.


WOW! what a process! I don't know how you kept track of all that but , good job! Try this. It's a maybe, but better than nothing,

TEMPORARY UNLOCK:
Put a non-accepted SIM Card and turn it on. Type *#9998*3323#. Press Exit. You will get a new menu. Select Malloc Fail.

In newer phones:
#*7337#

Jan 15, 2009 | Samsung SGH-d407 Cellular Phone

1 Answer

Iphone


this is what you do
  1. get a unlock card Click Here
  2. get a Verizon Sim card click here
  3. Switch off 3G network: Setting---General---Network---Enable 3G---Off
  4. Turn off the iPhone 3G, take out the SIM tray, place the Unlock Card and the SIM card on the SIM tray, put back the SIM tray into the iPhone
  5. Turn on the iPhone
    There is NO NEED TO CUT YOUR SIM!

  6. Just Plug & Play!

Jan 16, 2008 | Apple iPhone Smartphone

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