technology

After releasing iOS 4.2.1, the dev-team updated redsn0w to version 0.9.6b4 to jailbreak iPhone 4, 3GS, 3G, iPod touch 4G, 3G, 2G and iPad, I received many comments complaining about white Cydia icon and Safari crashing after jailbreaking their devices.


Therefore, dev-team has sent a new blog post update while the concept of a “tethered” jailbreak is pretty new to many people, let's check out this:

The notion of a “tethered” jailbreak is pretty new to many people, so here’s a quick rundown on what to expect:

1. If you’re on an iPhone3G, old-bootrom iPhone3GS, or non-MC ipt2g, life is easy. redsn0w installed an untethered jailbreak and so nothing below applies.
2. “Tethered” does not mean you cannot boot at all without PC/Mac assistance. If you have not installed any tweaks that hook into important programs like SpringBoard or CommCenter, your device will actually boot. However, jailbreak programs like Cydia won’t work (and Cydia may still have a white icon). Also, certain built-in apps that had to be moved by Cydia will fail (Safari being the most noticeable example).
3. If you’ve installed MobileSubstrate tweaks that hook into SpringBoard or other important programs, your boot will actually fail (you’ll get stuck at the Apple logo). You need to use redsn0w to “Just boot tethered right now”.

Remember, @comex and others are working on a way to untether the 4.2.1 jailbreak. Meanwhile, the above 3 points hopefully will make it all seem less confusing :)

You can avoid the reasons above to enjoy a jailbreak free of bugs (i.e. White Cydia Icon and/or Safari Crashing), but I highly recommend to wait for the comex untethered jailbreak on 4.2.1 which expected to be very professional (still no ETA). Let me know if you still facing these bugs or not via the comment section, stay tuned.

You may also like:

• HOW TO: Jailbreak iOS 4.2.1 iPhone 4, 3gs, 3g, iPad, iPodTouch with Redsn0w 0.9.6b4
• [WARNING] Apple Has Put a Baseband Requirement on iOS 4.2.1
• iOS 4.3 to Launch in December 13?

Apple is reportedly targeting mid-December for iOS 4.3 release and bring along something called “app subscriptions”. Apple and News Corp are currently working together to launch a tablet-focused news product, with John Gruber suggest that Apple is planning for a December 9th media event to introduce the new feature.


MacStories's being tipped from a reliable source that iOS 4.2.1 was delayed and released after its released date. Anyway, before the WiFi issues were discovered, Apple was already planning to release a new build of iOS 4.x in mid-December. Most specifically, they were planning for an iOS 4.3 release on December 13th, which is a Monday.

Here’s what we heard from a reliable source: when Apple didn’t know about the WiFi issues in the GM seed of iOS 4.2, the OS was scheduled to be released weeks before Nov. 22nd. Apple found out about the WiFi issues, released a second GM build and iOS 4.2 came out yesterday. It came out in November, but it should have been out in the first half of November. Anyway, before the WiFi issues were discovered, Apple was already planning to release a new build of iOS 4.x in mid-December. Most specifically, they were planning for an iOS 4.3 release on December 13th, which is a Monday.

Our source tells us it is unclear whether the “extra time” that was required to ship iOS 4.2 (actually, it’s iOS 4.2.1) will cause a delay for the rumored release of iOS 4.3 on December 13th or not. iOS 4.3 should, however, include bug fixes and maintenance of the code. It’s likely that 4.3 will also address the initial issues found in AirPlay, but we can’t confirm this just yet.

The source indicates that iOS 4.3 will bring the new subscription functionality needed for The Daily, with a possibility of more substantial cloud-based services coming at the same time. We'll be covering this, stay tuned!

Apple has release iOS 4.2.1, but not alone, it has merged some traps with this version for jailbreakers and unlockers with the introduction of a baseband requirement for iOS starting from the newly released iOS 4.2.1. Precisely, if you are using Saurik’s server or tiny umbrella and trying to restore 4.2.1 on an iPhone 4, you will end up in recovery mode and tiny umbrella will not be able to pull you out of recovery.

TheBigBoss: It seems that Apple has decided to put a baseband requirement on iOS. So at this point, if you are using Saurik’s server or tiny umbrella and trying to restore 4.2.1 on an iPhone 4, you will end up in recovery mode and tiny umbrella will not be able to pull you out of recovery. In this case, you will have to restore 4.1 again or you will have to restore 4.2.1 stock and be tether jailbroken. (Of course, I recommend 4.1 and not bothering with 4.2.1 at all). If you are an unlocker, this is a no brainier. Do not update to 4.2.1 even to test it at this point.

So we highly recommend to stay on iOS 4.1 and wait until the situation became stable, specially who want preserve their unlock. for now you can check iOS 4.2.1 features form here, and its jailbreak guide with redsn0w 0.9.6b4 from here. Stay tuned

Few moment ago we broke the news about the release of Redsn0w 0.9.6b4 to jailbreak iOS 4.2.1 on iPhone 4, 3GS, 3G, iPod touch 4G, 3G and iPad with working MobileSubstrate, as we told you earlier that redsn0w 0.9.6b4  is based on GeoHot’s limera1n bootrom exploit.


The bad new is that right now, the redsn0w 0.9.6b4 is a tethered or semi-tethered jailbreak for some devices (i.e. you will lose your jailbreak every time you reboot your iDevice, so you have to follow the following steps every reboot to have a jailbroken device )

Untethered Devices:

• iPhone 3GS (old bootrom)
• iPhone 3
• iPod touch 2G (Non-MC Model)

Tethered Devices:

• iPhone 3GS (new bootrom)
• iPhone 4
• iPad
• iPod touch 2G (MC Model)
• iPod touch 3G
• iPod touch 4G

NOTE: Those of you who rely on a carrier unlock stay away from Redsn0w and iOS 4.2.1.

GUIDE:

STEP 1: Download redsn0w 0.9.6b4,  iOS 4.2.1 for your device(download links at the end).

STEP 2: Update to 4.2.1 firmware using the IPSW file you just downloaded via iTunes 10.1.

STEP 3: Launch Redsn0w 0.9.6b4,  and browse for iOS 4.2.1 firmware final version 

STEP 4: Select "Install Cydia" and click on "Next"

STEP 7: You will Get a Jailbroken Device on the latest iOS 4.2.1  as soon as the process ends.

STEP 8: This step is only for these devices iPhone 4, 3GS (New Bootrom), iPod touch 4G,  3G, 2G, iPad. While this is tethered jailbreak and whenever you want to do anything related to jailbreak like SSH your device, or running Cydia, you must first run your device in the so called “jailbroken state” on every reboot by using “Just boot tethered right now” option.

Download iOS 4.2.1 (Final version) for your device version.
Download Redsn0w 0.9.6b4 for Windows and Mac
Download iTunes 10.1 for Windows or Mac

As we expected, the dev-team has just sent a new blog post update announcing the release of Redsn0w 0.9.6b4 to jailbreak the newly released iOS 4.2.1 on iPhone, iPod touch and iPad, for who don't know, Redsn0w 0.9.6 b4 is based on GeoHot’s limera1n bootrom exploit.

redsn0w version 0.9.6b4 is now available for your 4.2.1 jailbreaking pleasure. Please read all the above to understand what this jailbreak currently entails.

As usual we will prepare the full how to guide to jailbreak all iDevices on iOS 4.2.1, for now you can check the full details about i|OS 4.2.1 jailbreak and unlock in this post.

Update 1: As we promised, you can go and check out our guide to jailbreak all iOS devices on iOS 4.2.1 using Redsn0w 0.9.6b4  posted here.

Download redsn0w jailbreak for iOS 4.2.1 on iPhone, iPod touch and iPad [Windows and Mac]

As most of you know, AirPrint may be the most interesting feature in the newly released iOS 4.2.1 that allows you to print documents and files directly from your iPhone, iPad or iPod touch. But not all devices will be able to enjoy this function, so we will show you how to enable AirPrint on non-supported devices as iPhone 3G and iPod touch 2G.


STEP 1: Download Redsn0w 0.9.6b3 (Windows - Mac OS X).

STEP 2: Download iOS 4.2.1 original firmware from here.

STEP 3: Connect your device into your computer via USB and launch Redsn0w you download in step 1. Click on browse and point it to the original iOS 4.2.1 firmware of your device and wait while it's recognized.
STEP 4: Now you have to check on Enable Multitasking, other items are optional.
STEP 5: Put your iPhone into DFU mode by following the instructions on the screen:

• Hold down the Power button for 5 seconds.
• Without releasing the Power button, also hold Home buttons together for 10 seconds.
• Now release the Power button but keep holding the Home button for 15 seconds.

STEP 6: Once done, your iPhone will be rebooted and you'll get AirPrint on iPhone 3G ad iPod touch 2G.

From now on, when you open a page in Safari, you'll see the Print button by clicking on the share icon at the bottom. With this option, you can set how many copies of documents you want to copy. You have to select the printer (must be one of the 11 supported printers) and hit Print.
In case your printer is not supported by Apple, you can download and install Printopia to enable AirPrint on non-supported printers. [iPhoneItalia]

Some apps run code on the SpringBoard, so if any of it crashes, you're pretty much screwed. But, MobileSubstrate is a failsafe "SpringBoard.app" that will run in case of a SpringBoard crash. This saves you from SWOD's, etc, by temporarily disabling the code until SpringBoard reloads correctly. MobileSubstrate has been updated with iOS 4.2.1 compatibility.


You have first to jailbreak your device and enable SSH on iOS 4.2.1 using Redsn0w by following our guide posted here, then download this .deb pacakage from here and connect your device via SSH. Type the following in the terminal:

ssh root@[ip-address-ios-device]

Now login as root by entering “alpine” as password.

Once you have logged in, type the following:

dpkg-i / tmp/mobilesubstrate_0.9.3366-1_iphoneos-arm.deb

By the news about iOS 4.2.1 jailbreak and unlock, and iOS 4.2.1 compatibility for MobileSubstrate, it's now Cydia's turn to get iOS 4.2.1 compatibility, we'll have to wait just a bit until an official jailbreak is out followed by the new version of Cydia.