iOS5 Will Not Allow Downgrades to iOS4

If you are an , or user who has been jailbreaking your device, here is some bad news. The upcoming iOS5 will not allow users to downgrade to an earlier version of the OS out of the box.

Also Read: iOS 5 – Everything You Need to Know About It

A new post by The Dev-Team says that Apple is using a new technology in the iOS5 which will disallow users from downgrading to a lower version of iOS. Jailbreakers have usually had an option to backup their SHSH blobs in case something goes wrong with the update. They could then use the SHSH blob to downgrade their iPhone or iPod Touch to a older version.

It looks like Apple is about to aggressively combat the replay attacksthat have until now allowed users to use iTunes to restore to previous firmware versions using saved SHSH blobs.

Those of you who have been jailbreaking for a while have probably heard us periodically warn you to save your blobsfor each firmware using either Cydia or TinyUmbrella (or even the copy from /tmp during restoremethod for advanced users).  Saving your blobs for a given firmware on your specific device allows you to restore *that* device to *that* firmware even after Apple has stopped signing it.  That’s all about to change.

Starting with the iOS5 beta, the role of the APTicketis changing — it’s being used much like the BBTickethas always been used.  The LLB and iBoot stages of the boot sequence are being refined to depend on the authenticity of the APTicket, which is uniquely generated at each and every restore (in other words, it doesn’t depend merely on your ECID and firmware version…it changes every time you restore, based partly on a random number).  This APTicket authentication will happen at every boot, not just at restore time.  Because only Apple has the crypto keys to properly sign the per-restore APTicket, replayed APTickets are useless.

This will only affect restores starting at iOS5 and onward, and Apple will be able to flip that switch off and on at will (by opening or closing the APTicket signing window for that firmware, like they do for the BBTicket). 

Starting with iOS5, Apple will be using a new technology which they can turn on and off at will. This will limit the device from being restored to an earlier version. However, all is not lost yet since the Dev-Team says that tethered jailbreaks will still be possible and users would be able to downgrade to an earlier version provided they use an older version of iTunes, so don’t delete those old installers yet.

geohot’s limera1n exploit occurs before any of this new checking is done, so tethered jailbreaks will still always be possible for devices where limera1n applies. Also, restoring to pre-5.0 firmwares with saved blobs will still be possible (but you’ll soon start to need to use older iTunes versions for that). Note that iTunes ultimately is *not* the component that matters’s the boot sequence on the device starting with the LLB.

Apple has always been playing games with jailbreakers by watching over them and quickly releasing patches when an exploit is discovered and used for jailbreaking. Apple has also gone out and released unlocked iPhone 4 in the market. This might be aimed at controlling the unlocked iPhone market which is achieved through jailbreaking. With the introduction of iOS5, Apple might be hoping to restrict jailbreaking completely, even though it is legal.

iOS 5 Beta 2 Now Available for Developers

On Friday, Apple released iOS 5 Beta 2, the next version of its mobile operating system for iPhones, iPads, and iPod touches. You will need a paid ($99/year) developer account to download this beta, and you can sign in with your developer credentials to gain access. The latest beta release brings WiFi sync to the iPhone, iPad and iPod Touch.

iOS 5 Beta 2 release screenshot

WiFi Sync was one of the features touted at Apple’s WWDC event, and allows iOS 5 users to sync their devices to their iTunes libraries without a computer. As of now, you can use WiFi Sync only with iTunes for Mac.

Other important updates, as reported by 9to5 and BGR are:

  • iCloud logo becomes silver in settings

iCloud Silver Logo

  • Lockscreen notifications got an update from the UI department

iOS 5 homescreen

  • Notifications on the lockscreen are redone — they’re much, much bigger for a single alert, then shows in list view for multiple alerts.
  • iMessage only works with iOS beta 2 both ways, but it’s super fast now. We’re guessing Apple changed the servers they used for this.
  • When creating an iCloud account you can use any Apple ID provided it is a full email address and not a MobileMe account. If you have a MobileMe account, you can copy data from that account to an iCloud account to use during testing. You can find more information on iCloud at:
  • When signing in with a Classic MobileMe account via iOS 5.0 Setup Assistant, it offers iCloud Backup.

Apple will be releasing iOS 5 this fall, and we are expecting more beta releases before final release is ready.

You can checkout full change log here.

iPhone Graduates as Serious Photography Tool with iOS5 Updates

Apple’s iPhone has been the weapon of choice for many photography enthusiasts. iPhone 4 has already reached second place for all the photos uploaded to Flickr.

iPhone4 is second most popular camera on Flickr photo sharing site.
iPhone4 is second most popular camera on Flickr.

With the announcement of features geared for photography in iOS5, Apple has made sure this upward trend continues.

What’s New?

Apple announced at WWDC on 6th June, these features for photography included in iOS 5:

iOS5 New Features - Access from lock screen and volume up button as shutter release.
iOS 5 New Features - Access from lock screen and volume up button as shutter release.
iOS5 New Features - Compose pictures better with zoom and focus+exposure lock
iOS 5 New Features - Compose pictures better with zoom and focus+exposure lock
  1. Most interesting is the ability to click a photo using volume-up button in iPhone 4. This may seem trivial, but it makes clicking photos in landscape (horizontal) mode much easier than before. Camera+ a third-party app had enabled this feature previously, now it is built into iOS.
  2. You can now get to the camera app from lock screen right away. No unlocking necessary. iPhone drops you into a restricted camera app, so if a friend picks up your iPhone they cannot see previously clicked photos, not even the ones they click. This feature is great to snap those brief moments of brilliance that were missed before.
  3. Pinch to zoom now works when you are shooting! Of course, it is digital zoom, but being able to compose better is an added advantage.
  4. While we’re talking about composing, iOS5 also brings in composition overlay for rule-of-thirds. To use, turn the grid overlay on and align horizontal and vertical lines in photograph along the grid lines – better composed photos guaranteed!
  5. Auto-focus and exposure lock is a feature most photographers use on a daily basis. It lets you focus on a subject and expose well for the scene by moving the frame around till you get that sweet spot and then lock the settings with a long press on the screen; now you are free to compose the frame to your liking without losing the focus and exposure settings.
  6. Photo stream sync. This will work it’s magic if you have photo stream enabled in iCloud. All the photos you take on your iPhone will be synchronized across all other devices. The only catch seems that once it is enabled, your iPhone will only keep the latest 1000 photos while the desktop computer will hold all photos.
  7. And finally, the post-production also gets an overhaul with new editing features such as crop, rotate, red-eye reduction and one-click enhance.

All these features certainly put iPhone in the league of portable cameras, and with features like in-phone editing, iCloud and iMessage to accompany the camera… it goes beyond what portable cameras can do!

iOS 5 Jailbroken Already

Within a day of its unveiling, and months before it will be launched, iOS 5 has already been jailbroken.

MuscleNerd, a member of the iPhone Dev Team announced on Twitter that he has already jailbroken iOS 5.

“iOS5 jailbroken on ipt4g: via limera1n + tethered boot..not too many surprises :)”

The jailbreak was done using Limera1n, but there is a catch. It is a tethered boot jailbreak, which means that you would need to connect your iPhone to a computer every time you reboot it.

Cydia works well on the jailbroken device running iOS 5, and he was also able to install iSSH successfully.

Since Apple won’t be launching iOS 5 until Fall 2011, this exploit isn’t very useful now, but MuscleNerd says that it can be used to jailbreak the final version of iOS 5 as well, when it launches. It would be quite realistic to expect a much more usable and convenient version of the jailbreak within a day or two of iOS 5’s launch.

Here are some images of iOS 5, jailbroken, with Cydia installed.

Apple iOS 5 Jailbreak

Check out our detailed coverage of iOS 5 – iOS5 Everything You Need To Know About It

Download iOS5 Golden Master Firmware For iPhone 4, iPad And iPod Touch

Yesterday at WWDC, Apple introduced the next major version of its mobile operating system iOS5 with more than 1500 new APIs and 200 new features.

iOS5 includes a new Notification Center, a new Camera app, more info on the lock screen, Wi-Fi sync with iTunes and much more. Readers can read this article to know all about iOS5.


iOS5 will support iPhone 3GS, iPhone 4, iPod Touch 3rd Gen and 4th gen along with the iPad 1/2. For the general consumers, iOS5 is expected to be released sometime during this fall, presumably with a new iPhone.

However, Apple has already released a beta of iOS5 for developers to develop apps on. The beta can be downloaded from here. Only developers who have a developer account with Apple can download the beta.

General users, who are interested in trying out iOS5 on their iDevice, should ask some iOS developer for help. If a developer registers a UDID of an iDevice, then he or she can legally install iOS5 on their device.

iOS5 – Everything You Need To Know About It

Apple has just announced the next major version of iOS at the ongoing WWDC. iOS5 is a major release for developers with more than 1500+ APIs and tools, as well as for general users with more than 200 new features.

Notification Center

First and foremost, Apple has finally gone ahead and over-hauled the notification system is iOS. The new notification style in iOS5 is called the Notification System, and can be accessed from anywhere by just swiping down the screen (Android style). The Notification center also takes some cues from the popular Mobile Notifier app from the Cydia App store. Apple has also updated the lock screen to display notifications and music control buttons.


Twitter Integration

Apple has also tightly integrated Twitter into iOS5. iOS device owners can simply sign-in to Twitter once under Settings and they are done! Their Twitter contacts will be linked to their phone contacts. Core apps of the iOS5 like iPhotos, Maps, and Safari etc. will also feature Twitter integration. Users can now share an image or a link to an article by simply tapping the Tweet button in iPhoto or Safari.


With iOS5, users can read magazines available on the newsstand right on their iTouch device. The Newsstand’ app will show users a list of all the available magazines, and will also download the latest magazines in the background for offline reading. The App Store will also get a dedicated category for the Newsstand magazines.

Upgraded Camera App

Apple has also made taking pictures and videos on the iPhone easier and quicker, with a shortcut of the camera app right on the lock screen. The volume up button on the iPhone will now act as a physical shutter button. Users can now pinch and zoom right inside the camera app and select a particular scene where they want to lock the focus to. The new version of iOS will also allow users to do some basic editing with their photos like cropping and red-eye reduction.


Safari, Game Center And Mail With New Features

Safari for iOS has also been revamped in iOS5. It now features tabbed browsing, and also looks similar to Safari for OS X. The new Safari Reader’ feature will strip down a webpage from all the junk and ads, and present the main article in a readable, scrollable text format. For example, a 20 page article can be stripped down to just one page by this feature in a simple scrollable text format. The new version of Safari also features Reading List’ which is similar to the popular Read It Later service. The Reading List’ also syncs across all iOS devices and OS X based devices.


The popular Mail app has also been upgraded in iOS5. The app now features drag able addresses, indentation control, S/MIME support, the ability to search within messages, and to flag messages. There is also a Swipe to Inbox gesture for the iPad.


iOS5 will also include a new To-Do list app called Reminders’. The app will be location aware and can trigger functions depending on a user’s location and the time.

Game Center for iOS has also been enhanced with new features. Users now have the ability to view friends of their friends, find new games and purchase them right from within Game Center. Game Center now also features the ability to play turn based games like Scrabble and Chess etc.

iMessage The BBM Killer

Apple is also introducing a new messaging system with iOS5 dubbed as iMessage’. This service is similar to BBM, and will be available for the iPad, iPod Touch and the iPhone. The app will allow users to share messages, images, and videos etc. and will work over Wi-Fi as well as 3G.


Users will also be provided with typing notifications, and the messages will be pushed to all the iOS devices of a user. The messages sent via iMessage will be totally encrypted for enhanced security.

Wireless Syncing and OTA Updates


With iOS5, iDevices will become true PC free devices or rather Post-PC devices. iOS5 will incorporate wireless syncing with iTunes over Wi-Fi, which will include syncing your music library and apps. iOS updates will also be pushed OTA (Over-The-Air) from now on, and they will only update the needed parts of the OS a la Symbian and Android. Also, when users first start their iOS device, they will be greeted with a setup screen instead of the Connect To iTunes screen.


iOS5 will also include multi-tasking gestures which we saw back in iOS4.2. iPad users will also get a new split keyboard for thumb typing; along with a new music app. Dictionary has also been integrated in the whole OS. Users can tap a word anywhere inside the OS to find its meaning. Other new features of iOS5 include AirPlay Mirroring, improved Facetime video call quality, typing shortcuts, and Emoji emoticons.


The developer’s tool has also been updated with new features and is available for download beginning from today itself. iOS5 will be available for the iPod Touch 3G and 4G, iPhone 3GS, iPhone 4 and the iPad 1/2 sometime this fall.

Apple To Unveil Mac OS X Lion, iOS5 And iCloud Services At WWDC 2011

In less than a week from now, Apple’s World Wide Developer Conference (WWDC) 2011 will kick start. Today, in a press release Apple has revealed some more information about this year WWDC.

Like in all the previous year’s WWDC, this year also WWDC will start with a keynote from none other than the man Steve Jobs himself! The keynote is scheduled to begin at 10AM on June 5. Apple also gave us a sneak peak of what the keynote will address.


The keynote will mainly revolve around Mac OS X Lion the eight major release of OS X, iOS 5 a major upgrade of the iOS for the iPhone, iPad and the iPod Touch, and iCloud a new cloud based service from Apple.

The press release does not mention anything about the next generation iPhone. This confirms the rumors floating around that there will be no new iPhone at WWDC this year.

In all probability, the iCloud service from Apple will be a music streaming service like Google Music, and perhaps provide users with some storage space to save their data as well.

White iPhone 4 Running Test Build Of iOS 4 Leaks

The folks over at Tinhte, who have earlier managed to get their hands on many of Apple products before its release, have come up with something again.

This time, the folks from Tinhte have got their hands on a white iPhone 4 which is arguably running a test version’ of an upcoming iOS build. The white iPhone 4 has 64GB of on-board storage capacity.

The video uploaded by Tinhte suggests that the next version of iOS will feature a new multi-tasking UI.

Below is a video of the new multi-tasking UI in action :

The new UI shows all the open apps in a similar way as HTC’s Leap View, with an X’ icon for closing an app.

This leak from Tinhte more or less confirms that Apple won’t be launching the next generation iPhone at the upcoming WWDC. Instead, the company will announce a new and over-hauled version of iOS.

Sadly, this video does not show a new notification system or widgets for iOS. The notification system and the icons-only home screen of the current iOS version are heavily criticized by its users.

Hopefully, the final version of the next generation iOS will feature a new notification system and a home screen as well.