iPhone 4

How to Jailbreak and Unlock iOS 4.2.1 on iPhone 4 using Greenpois0n [Mac]

February 5, 2011
How to Jailbreak and Unlock iOS 4.2.1 on iPhone 4 using Greenpois0n [Mac]

This guide will help you perform an iOS 4.2.1 untethered jailbreak on your iPhone 4 and also unlock it if required. We will be using Greenpois0n’s latest release to jailbreak iPhone 4 using a Mac computer. Please note that Unlock is only available to iPhone 4′s at baseband version 1.59.00

How to Update iPhone 4 to iOS 4.2.1 Safely Without Upgrading Baseband

February 5, 2011
How to Update iPhone 4 to iOS 4.2.1 Safely Without Upgrading Baseband

This tutorial will show you show how to update iPhone 4 to iOS 4.2.1 without upgrading your baseband. This method will preserve iPhone 4′s baseband at 1.59.00 so you don’t lose your software unlock using Ultrasn0w in case you don’t have a factory unlocked iPhone.

MiTime Updated: Now Supports iOS 4.1 and 4.2.1

January 17, 2011
MiTime Updated: Now Supports iOS 4.1 and 4.2.1

If you own an iPhone 4 and have been using it on an unofficial carrier, there is a great chance that you are still struggling with FaceTime activation. For those of you who are running iOS 4.1 or 4.2.1 there is good news for you. MiTime, a popular FaceTime activation tool, has been finally updated [...]

Full Comparison: AT&T iPhone 4 Vs. Verizon iPhone 4

January 12, 2011
Full Comparison: AT&T iPhone 4 Vs. Verizon iPhone 4

Now that the Verizon iPhone is here for real after yesterday’s announcement we decided to do a full comparison of both the AT&T iPhone 4 and the Verizon iPhone 4. Let’s see what are the differences and what is new? What changes are going to matter and which ones will go just unnoticed.

How to Unlock iOS 4.2.1 on iPhone 4, 3GS, 3G with Ultrasn0w

November 29, 2010
How to Unlock iOS 4.2.1 on iPhone 4, 3GS, 3G with Ultrasn0w

We shared the iPhone 4.2.1 unlock with you as soon as it became live. This guide will show you how to unlock iOS 4.2.1 on any iPhone (3G/3GS/4) using Ultrasn0w. Ultrasn0w has been updated to version 1.2 and is now live on cydia.

Fix: iPhone 4 Screen Off and Vibrating Continuously

November 23, 2010
Fix: iPhone 4 Screen Off and Vibrating Continuously

Last evening my iPhone 4′s screen suddenly went off and it started vibrating non stop while it was kept on the table. A lot of other users have also reported this issue of iPhone 4 vibrating continuously. While Apple hasn’t yet provided the reason for this occurance, here’s what to do to reset the iPhone [...]

Fixing iPhone update server could not be contacted Issue

November 19, 2010
Fixing iPhone update server could not be contacted Issue

In my earlier post I told you about iPhone Error 1603 issue and here is another issue which I faced while  updating my iPhone to iOS 4.1. After few unsuccessful update, I started getting message on my iTunes: iPhone Update server could not be contacted. This is again an unusual error as everything was working [...]

iPhone Restore/Update Error 1603 [Solved]

November 19, 2010
iPhone Restore/Update Error 1603 [Solved]

I was trying to upgrade my iPhone 4 to iOS 4.1. Since it’s an unlocked iPhone, upgrade should not be an issue, but my iPhone started giving error 1004 and error 21. Initially I was trying to update using Windows system but after this issue, I moved to Mac. While trying to update my iPhone, [...]

How To Convert Your iPhone 4 Into Dual-Sim Phonel

November 14, 2010
How To Convert Your iPhone 4 Into Dual-Sim Phonel

This is a guest post by Khushdeep Singh who blogs at NiksGadget. If you would like to write for CallingAllGeeks, check our adsense revenue sharing program. Here is a good news for those who love iPhone as well as Dual Sim Phones. You can now convert your iPhone 4 into Dual Sim Phone. USBfever build the Dual [...]

How to Remove iPhone 4 Sim Card [Video]

October 20, 2010
How to Remove iPhone 4 Sim Card [Video]

People who are use to iPhone 3G are familiar with how to remove SIM card from iPhone by putting pin in the upper part of Sim tray but if you are planning to but an iPhone 4 you might get confuse to find Sim tray. More over iPhone 4 uses Micro Sim card instead of [...]

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