iPhoneJailbreakUnlock iPhone

Downgrade Baseband 06.15 to 05.13.04 Using RedSn0w 0.9.14b1

June 19, 2012 — by Simon Ng12


Not long ago, the iPhone Dev team announced an update of its popular jailbreak tool “Redsn0w”. The latest version allows iPhone 3G/3GS user to downgrade the baseband from 06.15 to 05.13.04. By downgrading, users who are originally stuck with the 06.15 baseband, can now use ultrasn0w to unlock their iPhone.

Here is the official release note of Redsn0w 0.9.14b1:

The iPhone Dev Team is happy to announce a baseband downgrade option in redsn0w for those who are using the iPad’s 06.15 baseband on the iPhone3G or iPhone3GS.

Typically you’d have the 06.15 baseband if you unlock with ultrasn0w but updated your iPhone baseband past 05.13.04. With this new capability, you can now downgrade specifically from 06.15 to 05.13.04 (even if you never had 05.13.04 on that device before). This gives you the best of both worlds: ultrasn0w compatibility and a normal iPhone baseband with full GPS and the ability to use stock IPSWs again.

Here are the steps:

Use the “Extras->Select IPSW” button in redsn0w to tell it which firmware version you have installed (new-bootrom 3GS users can usually skip this step but it doesn’t hurt for them to do it too).
Do a controlled shutdown of your iPhone (“slide to power off”). This step is very important to avoid mount problems when the ramdisk is running!
Go back to the first screen and click “Jailbreak”. Enable the “Downgrade from iPad baseband” checkbox, disable Cydia if you already have it installed, and click Next to proceed through the normal DFU ramdisk steps.
After the ramdisk gets launched and you see the Pwnapple running on your iPhone, you’ll eventually get to the “Flashing Baseband” step. THIS STEP TAKES A VERY LONG TIME to complete and there won’t be any feedback while its running. Please just let it be for the next 3-8 minutes! When the ramdisk has done its job it will reboot the phone on its own.

For those who are wondering if you can update your 3G or 3GS to 06.15 solely for the purposes of downgrading to 05.13.04, the answer is “yes” for 3G owners, and “maybe” for 3GS owners. The iPad baseband is not compatible with 3GS units manufactured week 34 of 2011 or later. If you have an iPhone3GS and if digits 3-5 of its Serial Number are 134 or later (xx134…), then you should NOT try to install the 06.15 baseband on your 3GS! It will brick your radio, preventing both the downgrade from working and normal iPhone software from using it as a phone! Be warned!

redsn0w 0.9.14b1

As usual, Redsn0w 0.9.14b1 supports both Windows and Mac OS. You can download it using the below links:

If you’ve tried out the downgrade, remember to leave us comment and share your experience.

iPhoneJailbreakUnlock iPhone

Unlock iOS 5.1.1 Using UltraSn0w 1.2.7 for Old Basebands Only

June 5, 2012 — by Sette Capati0


Unlock iPhone 4 LogoJailbreak updates and releases keep coming. They are unstoppable. Now we have the UltraSn0w 1.2.7 to unlock your iOS 5.1.1. However, it is only possible for old basebands.

We know you are expectant for more updates after the release of untethered jailbreak by iOS developers. Now, the iPhone Dev’s Team software-based ultrasn0w is finally available. The battle is not yet over. Your final feat is to unlock your device for all networks.

iPhoneJailbreakUnlock iPhone

How To Unlock iPhone 4S, iPhone 4 on iOS 5.0 or Up

April 23, 2012 — by Simon Ng25


This is a big news for iPhone 4S and iPhone 4 users. Earlier, a Chinese iPhone hacker Loktar_Sun has released a solution for unlocking a jailbroken iPhone using Sam Bingner’s SAM (Subscriber Artificial Module) package. This SAM unlock method should work with all baseband versions.

I’m not able to test the method on my iPhone 4S as it’s a factory-unlocked version. However, the method has been verified on U.S. carriers by the iPhone Dev team member musclenerd as well as another iPhone blogger.

iPhoneNewsUnlock iPhone

An Update about iPhone 4S Unlock

November 28, 2011 — by Simon Ng8


Unlock iPhone 4 LogoWhile Apple has already offered factory-unlock iPhone 4S in some countries, there are still many iPhone users waiting for an unlock solution that allows them to use SIM card from any carriers.

Not long ago, @musclenerd from the iPhone Dev team has announced on Twitter that the team is working on a promising unlock solution for iPhone 4S. The odd part, however, is the upcoming unlock solution will only work for iPhone 4S, the latest generation of iPhone. This may suggest the unlock solution depends on a hardware exploit which only found on iPhone 4S.

iPhoneJailbreakUnlock iPhone

Temporary Unlock Method for iPhone 4S, Try at Your Own Risk!

November 19, 2011 — by Simon Ng1

Earlier, Gizmodo shared an usual method to unlock an iPhone. The method does not require you to jailbreak the iPhone. What you need is an original SIM card from AT&T and follow a set of procedures to unlock it.

As reported by Gizmodo, some users found the method works on their iPhone but some are not. I do not have the AT&T SIM card to test. I’m not sure whether this method works on all models of iPhone. So try at your own risk.

AccessoriesiPhoneUnlock iPhone

Want To Add a Second SIM To Your iPhone 4? Try Vooma Peel PG920

November 14, 2011 — by Gaurav Kheterpal2


Vooma Peel PG920Like most other iPhone lovers, I strongly believe that the Apple iPhone 4 is without doubt the best smartphone in the world. However, my biggest grudge with the iPhone is that it lacks multi-SIM capabilities. Last year, I tried my hand at USBFever’s case to host dual full size SIM cards on the back of an iPhone 4 but I was left wanting more due to its poor usability. In that context, I recently came across the launch of Vooma Peel PG920, a special case that transforms your iPhone 4/ 4S into a dual SIM smartphone.

Unlock iPhone

How To Use Fuzzyband to Downgrade iPhone 3.1.3 Baseband (for iPhone 3G only)

February 15, 2010 — by Simon Ng113


“I have upgraded my iPhone 3G to version 3.1.3 firmware and now my iPhone is locked. Anyway to unlock it again?”

“Today, iTunes prompts me to upgrade my iPhone 3GS to the latest iPhone OS version (3.1.3). I hit the confirm button and upgrade my iPhone. After the upgrade, I can’t make calls or receive calls. Probably my iPhone 3GS is locked again. Please help.”

Recently, I got a number of email for the above unlock questions related to iPhone OS 3.1.3. I hope you are not the one facing these problems.

As mentioned in previous posts, it is warned that you SHOULD NOT upgrade to iPhone 3.1.3 if you’re using a software-unlocked (e.g. via ultrasn0w) iPhone 3G/3GS. Otherwise, you will end up with a locked iPhone again. While you upgrade to iPhone OS 3.1.3, the baseband of your iPhone is also upgraded to v5.12.01. That’s why your iPhone is locked again after the OS upgrade.

For iPhone 3GS user, presently there is no unlock solution for you. But if you’re using iPhone 3G with older version of bootloader 05.08, you may use Fuzzyband to downgrade the baseband version from 05.12.01 to 04.26.08, which can be unlocked using ultransn0w.

JailbreakUnlock iPhone

Complete Guide: Jailbreak and Unlock iPhone 3G/3GS 3.1.2 Using Blackra1n & Blacksn0w

November 6, 2009 — by Simon Ng542


blackra1n-blacksn0w-3gPreviously, I have posted up the jailbreak guide for iPhone 2G running OS 3.1.2. Here is the complete jailbreak guide for iPhone 3G/3GS using blackra1n and blacksn0w.

For starter, blackra1n is the popular jailbreak tool, developed by GeoHot, that lets you jailbreak iPhone OS 3.1.2 on all models of iPhone. For blacksn0w, it’s the only iPhone unlock tool available to unlock iPhone with baseband 05.11.07.

This guide will walk you through the necessary procedures to jailbreak and unlock iPhone 3G and 3GS.

Before you dive into the jailbreak process, please read through the note carefully:

  • Make sure you use iTunes 9.0 or up for the jailbreak. If you are using older version of iTunes, please upgrade it first. You can download the latest version of iTunes from Apple.
  • Before jailbreaking, make sure you have backup all your contacts, sms, photos, etc via iTunes. Simply sync your iPhone and backup the iPhone data.
  • For those using a new iPhone 3GS coming with an updated Bootrom, blackra1n only supports a tethered jailbreak. That means once jailbroken you should not let your battery runs out. If it does run out of battery, you need to reconnect it to the computer and use blackra1n to boot it.
  • What if you have jailbroken it with PwnageTool before, can I upgrade to OS 3.1.2 and use this guide to jailbreak? Yes, it should work.
  • I have accidentally upgraded to iPhone OS 3.1.2 and lose unlock, can it fix my iPhone? Yes, go ahead and use blacksn0w to unlock it!
  • Let me highlight again. This guide is for iPhone 3G or 3GS. For iPhone 2G jailbreaking, please refer to the previous post.
  • Disclaimer: Jailbreaking may void your warranty of iPhone. Again, jailbreak it at your own risk.

Okay, let’s go straight to the jailbreak procedures.

JailbreakUnlock iPhone

Complete Guide: Jailbreak and Unlock iPhone 2G 3.1.2 Using Blackra1n

November 5, 2009 — by Simon Ng517


blackra1n-jailbreak-logoAs you know, GeoHot has released blackra1n RC3 yesterday. The blackra1n is a popular jailbreak tool for iPhone 2G/3G/3GS running firmware 3.1.2. Unlike the older jailbreak tools (e.g. PwnageTool or Redsn0w), blackra1n is advertised as the fastest and simplest jailbreak tool. Yes, it’s super fast. Talking about the jailbreak process, it’ll only take you around 30 seconds to complete. And, the jailbreak process is very simple and straightforward. It’s so easy that I doubt if I need to put up a guide for blackra1n.

Anyways, not all iPhone jailbreakers are geeks. Probably some of the new comers to the jailbreak world may need some help. So, here is the complete guide for blackra1n that shows you how to jailbreak iPhone 2G running OS 3.1.2. (For iPhone 3G/3GS, I’ll post another guide in the next post.)

Before you dive into the jailbreak process, please read through the note carefully: