![]() ERROR: The process "iTunesHelper.exe" not found. ERROR: The process "iTunes.exe" not found. Note: The 3GS screen should be totally white while tetheredboot is running. Your directory should contain these files:Ĥ: Put the device in normal DFU mode ( iClarified - iPhone - How to Put an iPhone Into DFU Mode)ĥ: Open a cmd.exe window (run as admin) and navigate to "New Folder"Ħ: Run tetheredboot and load 3 files on the iDevice: If successful: Completes with: ALL OK boot with '' ramdisk. ![]() Select ramdisk: 038-0082-001.dmg (the 4.2.1 custom ipsw ramdisk)Ī new ramdisk is created: (automatically builds) (the restore ramdisk)ģ: execute: RecoveryRamdiskBuilder.exe (Build the new ramdisk with ssh included)Ĭopy/Paste IV and KEY (from theiphonewiki.) Make appropriate changes (different custom ipsw with different file names) for your iOS / iDevice version.ġ: RecoveryRamdiskBuilder_rev_2.zip: (Reference: Mostly iPhone hacking: Booting SSH ramdisk on new devices)Ģ: Restore Ramdisk (038-0082-001.dmg) IV & KEY (3GS, iOS 4.2.1): from VFDecrypt Keys - The iPhone Wikiģ: Custom 4.2.1 ipsw created by PwnageTool or Sn0wbreezeĢ: Extract everything (except the custom ipsw) to "New Folder"Ģ: Extract the custom 4.2.1 ipsw (I use 7-zip) to a temporary folderįrom the temporary folder, find and copy to "New Folder"ĭ. My primary reference (msftguy link in 2nd paragraph above) provides a 4.1/3GS tutorial. Note: Instructions are written for 3GS/4.2.1. (A similar method using iRecovery is available, see links above) NOT FOR older 2G, 3G devices, or any iOS 3.x Implements: limera1n for a pwn'd DFU mode exploit Tested: 3GS, new bootrom, iOS 4.1 (Windows 7 PC, iTunes 10.4), jb'd w/redsn0w (using 4.1 files and keys, see end of post ) Tested: 3GS, old bootrom, iOS 4.2.1 (Windows 7 PC, iTunes 10.1), jb'd w/PwnageTool SSH/AFC2 access may be available for a short time during the reboot process.Ĭlaimed support: iPhone4, iPad I, 3GS old & new bootrom Note: If your iDevice continually reboots (does not freeze), a simpler solution is likely. Nothing I've tried will access or even recognize the device. ![]() It doesn't reboot, it does nothing! A force shutdown works, but it does the same thing over and over again.ĭuring this 'once in awhile' situation: SSH, AFC2, iPhoneBrowser/Explorer, iTunes, does not work and the computer does not recognize the device. When this happens, I typically get the normal Apple logo for about 5 minutes, then it adds a spinning wheel for another 2-3 minutes, then everything freezes. Unfortunately, once in awhile, it does not boot into safe mode. Most of the time, the 3GS will boot or respring into safe mode where it can be accessed and fixed. Since the release of 4.x, many have experienced booting issues after installing a non-compatible or faulty MobileSubstrate app. It requires technical knowledge, significant computer and iPhone experience, and is NOT for the beginner or the faint of heart. ![]() It builds a new ramdisk with SSH included, uses current jb'ing exploits to download the ramdisk and access the iDevice. This process should be considered a last resort. ![]() All thanks go to MsftGuy and so many others.Īcquire SSH access to the root and user filesystems, modify and/or delete the of*****ng program, and reboot without any damage or noticeable change. It uses this reference as THE source ( Mostly iPhone hacking: Booting SSH ramdisk on new devices), adds changes for iOS 4.2.1 and lots of clarification. Warning: Significant iPhone/computer experience required!! This is an alternative approach when the normal methods don't work and all else fails. SSH, iPhoneExplorer/Browser, etc and iTunes restore are the normal methods to either restore or to gain access to a non-bootable device and implement a fix. When an iDevice won't boot, several remedies are available. Experienced users only !! If you don't know what you're doing, stay away!! Emergency SSH access using a pwn'd DFU mode RamDisk (Win7-32) ![]()
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