The latest iPhone 4s is a single hardware platform that works with GSM carriers like AT&T, and CDMA carriers like Verizon and Sprint in the USA. Unfortunately, you have to decide which carrier you want to work with when you buy the phone. How long will it be until an unlock is available for these devices that allows you to switch between any GSM or CDMA carrier?
If you have any insights, please leave a comment!
iOS 5 was jailbroken soon after release. Jailbreaking allows you to run 3rd party apps on your iOS device that haven’t been approved by Apple for distribution through the office iTunes App Store. Unlocking builds on jailbreaking to remove the carrier lock for your GSM iOS device. For example, US iPhone owners who want to use T-Mobile, rather than AT&T have to used an unlocked phone.
Well, hold on to your seats! You saw it here first (unless you didn’t)! iPhone 4 and iPhone 3GS owners can now unlock their phones running iOS 5! For more details, check out this helpful post about UltraSn0w 1.2.4, which makes it all possible.
Be careful though, don’t rush to upgrade to iOS 5 you need to be careful about what version of the baseband code you are running!
iOS 4.3 is due any day now, but the bigger news is that there is an untethered jailbreak available for recent devices running iOS 4.2.1. The original jailbreak was redsn0w from the iPhone dev team. It was joined by Greenp0ison, but both had the same limitation, when jailbreaking recent devices, you had to hook it up to a computer every time your device was restarted. Only iPhone 3gs and iPhone 3 users got the benefit of an untethered jailbreak. That changed last week.
An update to Greenp0ison is available that allows untethered jailbreaking of all current devices (which doesn’t yet include the verizon iPhone) from a Windows, Mac system. No Linux yet, but hopefully it is coming soon.
Apple released an update to the iPhone OS today. The 3.1 iPhone update brings lots of little improvements. Don’t let iTunes tempt you with them if you have an unlocked iPhone. The new firmware will upgrade your baseband firmware, relocking your iPhone and, potentially, making it impossible to unlock again.
The good news is that your iPhone can still have that 3.1 iPhonee goodness and your unlocked iPhone. You just need to trust in the iPhone Dev team, because their tools provide a way to install the update without updating the baseband and breaking the unlock.
If you update to Apple’s new software using the normal iTunes process, you will lose your ultrasn0w unlock. In fact you may lose it permanently, because for most people the baseband firmware cannot be reverted to a previous version (unlike the main application CPU firmware).
But don’t worry…our PwnageTool program lets you update your main firmware without touching your baseband firmware, so you can still have the best of both worlds. But you must be diligent about saying “no” to your iTunes request this week to update your firmware.
As always, eliminate the middle-men and get the PwnageTool and all your iPhone accessories direct from the source.
Yes, the iPhone Dev Team is just that awesome. They’ve released updates to RedSnow, their easy jailbreaking tool, and UltraSn0w, their iPhone 3G and now 3GS unlocking tool.
With this combo, you can jailbreak your iPhone to run unofficial 3rd party applications with RedSn0w (thats RedSn0w, with a zero). Then you can use one of those unofficial 3rd party applications called UltraSn0w (again, with a zero) to unlock your phone so you can use it with a 3rd party GSM carrier.
Note: Don’t go rushing to install the 3.1 firmware that is in beta now. Baseband upgrades can break your unlock and may make it impossible to ever unlock again.