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Redsn0w 0.9.9b1 Released, Allows Jailbreak Without Manual IPSW Selection

Couple of days back, @MuscleNerd of Dev-Team made an announcement on twitter regarding an upcoming major Redsn0w jailbreak tool overhaul. Today, that update has been released which brings tons of new features. Redsn0w 0.9.9b1 supports all current iOS devices except the iPad 2 and can jailbreak iOS 5, iOS 4.3.5 as well as iOS 4.3.3 among the latest firmwares.

While it doesn’t yet bring the much awaited untethered iOS 5 jailbreak support, it does add some exciting new features including the ability to automatically detect and download required IPSW files directly from Apple’s servers in order to jailbreak the connected iOS device. Once downloaded, the firmware file is stored in program’s cache for all future jailbreaks.

RedSn0w 0.9.9b1 is now available for download for Mac OS X and Windows systems. Below is the complete change log:

  • uses DFU mode to try to automatically determine which device and FW you have
  • fetches pieces of public IPSWs from Apple (once).  Non-public IPSWs must be provided manually (once).  It then caches those pieces for future use.
  • “Just boot” is a tethered boot.  Uses whatever “Preferences” you’ve set for boot logo and kernel boot-args
  • “Pwned DFU” puts your device in a pwned DFU state for some of the iTunes stuff detailed below
  • “Recovery fix” gets past 1015 types of errors (when baseband portion of restore fails).  Should work on iOS5 beta too
  • “Select IPSW” is for picking non-public IPSWs, or overriding auto-detection
  • “SHSH blobs” has a bunch of options…
  • “Fetch” – fetch current PARTIAL blobs on device.  Should complete in under 10 or 15 seconds.  Puts the set of PARTIAL of blobs on your computer as a plist.  Checks if Cydia already has a full set for this device and build.  If not, it submits this PARTIAL set and returns Cydia’s acknowledgement or rejection
  • “Verify”  – cryptographically verifies existing blob files from either redsn0w, TinyUmbrella, or Cydia server.  You can select a whole bunch of blobs to verify at once if you want (like the TinyUmbrella directory)
  • “Submit”  – both verifies and submits one or more blob files to Cydia.  This lets you copy your entire TinyUmbrella cache of blobs up to the Cydia server
  • “Query” – queries the Cydia server for all available FULL or PARTIAL blobs for a given set of ECIDs
  • “Stitch” – stitches either FULL or PARTIAL blobs to a STOCK or CUSTOM IPSW
  1. FULL blobs stitched to a STOCK IPSW gives you a completely self-contained signed IPSW that iTunes will accept without any tricks (no need to go into pwned DFU mode, no need to start TinyUmbrella TSS server, no need to redirect to Cydia server for blobs)
  2. PARTIAL blobs stitched to any IPSW requires you to go into pwned DFU mode before running iTunes.  No need to start TU or use Cydia though.
  3. stitching either FULL or PARTIAL blobs to a CUSTOM IPSW also requires a pwned DFU start before iTunes restores.  No need to start TU or use Cydia though.
  4. stitching is NOT yet supported on iPhones (well, at least not tested).  Need to work out the baseband part of the restore process.
  5. will eventually support fetching the blobs directly from Cydia instead of a file on your computer

Here are the official download links:

“Technology runs through my veins...” | Follow me: @DrUsmanQ usman@iPhoneinCanada.ca

  • Anonymous

    Greater effort man………… MuscleNerd has done greater one that is Jailbreak iOS 4.3.5 and iOS 5 ……. thanx for Updates man
     http://www.iphoneleaks.net/2011/09/redsnow-0-9-9-b1-jailbreak-ios-5-4-3-5-4-3-3-how-to/

  • Kenny3535

    is the 4.3.5 jailbreak untethered or tethered ??

  • Iptorrentin

    same question for me: is the 4.3.5 jailbreak untethered or tethered ??

  • Cjlee9

    Judging by the pics the “just boot” is a tethered jb

  • MrAnonymous

    It’s already been announced that there will never be a 4.3.5 Jailbreak.  They are saving that exploit for the official iOS 5 release.

  • MrAnonymous

    Untethered Jailbreak that is.

  • MrAnonymous

    Untethered Jailbreak that is.

  • patrick

    Hey guys I’m a newbee when it comes to iPhones, I just recently switched from android. I’ve downloaded the file about but need a guide if there is one available to complete the process. Any answers?

  • iPepe

    excuse me ¡¡¡i have a iphone 3GS 4.3.5 bb 05.16.02 …

    I get an error: error with SHSH Blobs

    ….What should I do?

    help me !!! please

  • love

    i succesfully jailbrkn my phone using this redsnow 0.9.9b1. now my question is how can i unlock it?
    (iphone 3gs 4.3.3  -5.16.01) 

  • love

    i succesfully jailbrkn my phone using this redsnow 0.9.9b1. now my question is how can i unlock it?
    (iphone 3gs 4.3.3  -5.16.02)