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How to Unlock iPhone 4

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It’s the right time I can write this article to explain in How many ways we can Unlock a Factory locked iPhone 4 . In the last few weeks the jailbreaking community has seen quite a few ways to use a carrier locked iphone 4 with other providers without using the general Ultrasn0w Unlock method. Follow the article below to know more about iPhone Unlocking .

How to Unlock iPhone 4 ?

There are several ways to unlock iPhone 4 successfully . I will write down the details of these methods below along with instruction videos . I will also list the merits and demerits of using all the mentioned unlock procedures based on their reliability .

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  1. Ultrasn0w
  2. Gevey Sim
  3. IMEI Unlock
  4. AT&T Official Unlock
  5. SAM Unlock

1. Ultrasn0w Unlock : Ultrasnow unlock is a software based unlock for iphone 4 which requires jailbreaking your device using the available jailbreak tools [JailbreakMe-Greenpoison - Limera1n-Redsnow-Snowbreeze-PwnageTool]. Read more about How to Jailbreak iPhone 4 .

ultrasnow 1.2.3 unlock 4.3.3 iphone 4

Merits :

  • Free to download and install

Demerits :

  • Requires jailbreaking
  • Only available upto iPhone 4 on baseband 01.59.00 [02.10.04 - 03.10.01 - 04.10.01 not supported] .
  • Unlock can be lost with during updating to latest firmware

Read more about Ultrasnow Unlocking

2. Gevey Sim Unlock : This method works by implementing a hardware unlock procedure in which the Gevey Sim Interposer is used to make calls to a predefined emergency number which is allowed on all locked mobile phones . As soon as the call is made , the interposer with its programmed hack will unlock your device .

gevey sim unlock iphone 4

Merits :

  • Requires no jailbreaking
  • Easy to do unlocking method . No skills required .
  • Easily available on Amazon and other online sites .
  • Can unlock all basebands and Firmware .

Demerits :

  • Expensive Unlock Solution
  • Fake Gevey Sim available in the market
  • If signal is lost while you are out of network locations like inside elevators or underground , you need to redo the complete unlock process .

Read more about How to use Gevey Sim .

3. IMEI Unlock : In this method the provider will take your IMEI number which is unique to every mobile device . This IMEI number will be then put into Apple’s white list , so that the next time you sync your device with iTunes , it will be permanently unlocked .

iphone 4 IMEI unlock

Merits :

  • Official permanent unlock solution
  • Unlock is not lost and works exactly like a factory unlocked iphone .

Demerits :

  • Very expensive
  • Not very reliable as the source of the unlock is not know .

Read more about IMEI Unlock .

4. AT&T Official Unlock :

att-unlock-iphone-4-officially

iPhone 4 locked to AT&T USA can get their iPhone 4 unlocked if they pay the termination fees or have their account in good standing . Follow the instructions to Unlock iPhone 4 on AT&T .

Merits :

  • Official AT&T unlock solution
  • Factory unlocks your iPhone for use with any carrier worldwide .
  • Easy unlock method . Just connect to iTunes and update for unlocking

Demerits :

  • Requirements include valid purchase proof

5. SAM Unlock - 04.11.08 – 04.12.01

sam unlock iphone 4

You can install SAM Unlock on your iPhone 4 and iPhone 4S running baseband 04.11.08 , 04.12.01 and older basebands running any firmware . This is one of the easiest and best available option to unlock iPhone .

Merits :

  • Free and easy to install once jailbreak is done
  • Works on latest basebands
  • Unlocks all carriers

Demerits :

  • Jailbreak required
  • iTunes firmware update can remove the jailbreak and in the process re-lock the phone

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