Question about Apple iPhone Smartphone

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Invalid sim on unlocked 3gs - Apple iPhone Smartphone

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Some of the reasons why sim card getting not recognised in your mobile
1.Bad SIM -if it wasn't unlocked you'd get a message asking you to enter a PIN.Get the pin from an online vendor like http://www.classicunlocking.com/apple-iphone-3gs/rs17wp9/
2.With a warning that you have 10 attempts to enter the correct PIN code or it could be locked forever ,if you don't get that message it's "mostly likely" unlocked.BUT find a phone with a known working SIM and see if it will work and connect to the network.
3.May be a hardware problem try flashing with a custom rom.
4.This has to be a problem with the SIM card slot, which is soldered down to the logic board. It's possible that it's a mechanical problem , you might be able to open it up and discover that the card-detect switch is failing to detect SIM card insertion.
5.The os system has been updated (by jailbreaking) and your phone is not being recognized with the right settings , this happened after a update a year or two ago..

Posted on Feb 07, 2014

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6ya6ya
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Posted on Jan 02, 2017

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Geekman
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SOURCE: iPhone SIM Failure

The phone is locked to Apple and needs a Security code to unlock it.
When you place a new or a existing SIM card from another phone provider into your mobile phone and it asks for a Security code then :-
This phone is locked to the original mobile phone provider. You need to contact this mobile provider to ask for the unlock code (security code) for this phone. You need to provide proof of ownership etc and the phone's unique IMEI number which is located inside the phone under the battery. They use this number to generate the unlock code for your phone.
They should provide you with instructions on how to enter this code into the phone.
Once you unlock the phone, then you can insert a new SIM card in this phone or sign up with another phone provider using this phone.

You could ring the phone provider and ask for the unlock security code because you are going overseas and wish to use your phone with a prepaid SIM card from another country.
The other way to get your phone unlock is to use a phone unlocking company on the Internet, they usually charge a couple of Dollars for their services. Use Google and search for “Security unlocking code”.

Posted on Nov 26, 2009

  • 1 Answer

SOURCE: i bought a new iphone 3Gs . i put my optus sim

call to costomercaer now your id proof give an any mobil shop

Posted on Mar 20, 2010

awaissabair
  • 580 Answers

SOURCE: apple 3gs unlocking

Default 4 Digit user code: 1234 or 0000
Default 6 Digit Security code: 123456 or 000000


Type *#06# at the mobile screen to know IMEI no of your mobile.
send the IMEI no to me and i will reply you with unlocking code.
IF Problem not Solved So
Please New Software install in the Phone Problem will Solved

Posted on Oct 05, 2012

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1 Answer

How to unlock iphone 3gs


Jailbreaking is entirely different from unlocking . Jailbreaking is the process of removing limitations/restrictions so that 3rd party applications can be installed. Unlocking a phone is a procedure to remove any SIM/Network restrictions set on the phone by either the manufacturer of the phone or by the mobile phone's service provider.
To unlock your iPhone 3GS you can get Remote Unlock Service from Mobile-Unlocker.com . There you have to give your Country and current Network name along with your IMEI number to get Remote Unlock Service.

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Iphone 3gs invalid sim


To fix this problem you need to unlock your Iphone 3 GS. Use remote unlocking service to unlock your mobile. Get service from the site Mobileunlocksolutions.com , and unlock it using unlocking instructions. Get free instructions from the site Mobileunlockguide.com .

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One of the best method to unlock an iPhone 3GS is to unlock using remote unlocking service. You can get the remote unlocking service for an iPhone 3GS from www.wickedunlock.com/apple-iphone-3gs/rs16wp9/ at affordable cost. This method of unlocking is very simple. Here are the steps for unlocking an iPhone 3GS,
1. Wait for us to send you an email saying your phone has been activated or remotely unlocked.
2. Install the latest version of iTunes.
3. Make sure your Apple iPhone 3GS phone software is updated to the latest version using the iTunes software.
4. Connect your Apple iPhone 3GS to iTunes with a NOT ACCEPTED SIM card.
5. Wait until iTunes detects your Apple iPhone 3GS.
6. Disconnect your Apple iPhone 3GS and reconnect it after 10 seconds.
7. Your Apple iPhone 3GS is now unlocked.

This method of unlocking doesn't require a jailbreak too. Anyway if you need to jailbreak your iPhone 3GS, You can get the guide from www.absinthejailbreak.com All the best mate.

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1 Answer

I want to use my tmobile service in my att 3gs jailbroken 8g iphone i believe i need a factory unlock


Yes, You need to unlock your AT&T iPhone 3GS to use with T-Mobile. You can unlock your iPhone 3GS safer and easier through remote unlocking method. You can get the remote unlocking for an iPhone 3GS from www.unlocking4u.com/apple-iphone-3gs/rs6wp9/ at affordable cost. This site is a legit source to rely on accurate unlocking solutions.
Here are the steps for unlocking an iPhone 3GS through remote unlocking method,
1. Wait for us to send you an email saying your phone has been activated or remotely unlocked.
2. Install the latest version of iTunes.
3. Make sure your Apple iPhone 3GS phone software is updated to the latest version using the iTunes software.
4. Connect your Apple iPhone 3GS to iTunes with a NOT ACCEPTED SIM card.
5. Wait until iTunes detects your Apple iPhone 3GS.
6. Disconnect your Apple iPhone 3GS and reconnect it after 10 seconds.
7. Your Apple iPhone 3GS is now unlocked.

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1 Answer

Att iphone 3gs factory unlock code want to use w tmobile service


Hi, You can unlock your iPhone 3GS safer and easier through remote unlocking method. You can get the remote unlocking for an iPhone 3GS from www.unlocking4u.com/apple-iphone-3gs/rs6wp9/ at affordable cost. This process of unlocking is very simple.
Here are the steps for unlocking an iPhone 3GS through remote unlocking method,
1. Wait for us to send you an email saying your phone has been activated or remotely unlocked.
2. Install the latest version of iTunes.
3. Make sure your Apple iPhone 3GS phone software is updated to the latest version using the iTunes software.
4. Connect your Apple iPhone 3GS to iTunes with a NOT ACCEPTED SIM card.
5. Wait until iTunes detects your Apple iPhone 3GS.
6. Disconnect your Apple iPhone 3GS and reconnect it after 10 seconds.
7. Your Apple iPhone 3GS is now unlocked.

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FYI an i phone does not need a sim to function and i do have a connection and sim from tmobile i previously had att and i do not like them so


If you need to use a T-mobile SIM into an AT&T locked iPhone, you need to unlock the mobile. You can unlock an iPhone safer and easier through remote unlocking method. You can get the remote unlocking for an iPhone 3GS from www.unlocking4u.com/apple-iphone-3gs/rs6wp9/ at affordable cost with easy unlocking instructions.

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Iphone unlock


You can get Remote Unlock service from the site Classicunlocking.com/supported-phones/rs17wp7/ and Unlock I-Phone 3GS from network lock.Then use any GSM Network Sim card....

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1 Answer

I need a PUK code for my iphone 3gs


These directions are for an AT and T phone, but other than that, are the same for any carrier. A PUK (PIN Unlock Key) code is required to unlock SIM cards that have become locked following three successive incorrect PIN entries. If your SIM card becomes locked, you will need to get a PUK code from your phone carrier to unlock your SIM card. You can obtain your phone's PUK code from your carrier in one of these ways: Log in to Your account.online Use a Technical Support Chat Contact your carriers Customer Care Get Your Phone's PUK Code Online Go to the Phone/Device page. From the My Phone/Device screen, select the Unblock SIM Card link under the My Make & Model heading. The Unblock SIM screen will display your PUK code and will give you instructions for unblocking your SIM Card. Once you receive your PUK code, you will need to enter it into your phone to set a new PIN code. Note: If you enter the wrong PUK code 10 times in a row, your SIM card will be invalidated, and you will need to purchase a new SIM Card. The phone will display the following error: "PUK blocked call operator

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1 Answer

Y in my chaina invalid sim?


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This download has all the latest updates and all the latest upgrades .
2g, 3g, 3GS, up to 4.2.1
It will unlock iphones that were locked due to an update in itunes.
You will be free to use ANY SIMS card from ANY network.
Keep it on your computer and use it as many times as you want to. (friends & family)
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Aug 03, 2011 | Computers & Internet

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