Apple just released iOS 4.3.5 firmware and redsn0w (with limera1n exploit) can jailbreak iPhone 4, 3GS 4.3.5 iOS. You can use Redsn0w 0.9.8 beta 4 to get tethered jailbreak on iOS 4.3.5. As MuscleNerd confirmed on Twitter:
@zaone @m1ckey29 ah ok thanks for checking! So those who really do want tethered 4.3.5 can use redsn0w pointed at 4.3.4 (except iPad2)
Here’s the guide:
Jailbreak iPhone 4, 3GS 4.3.5
Before you Begin:
- Download iOS 4.3.4 and iOS 4.3.5 firmware for your device.
- Download iTunes 10.4 for Windows / Mac OS X.
- Download Redsn0w 0.9.8b4:
- Windows: Redsn0w_win_0.9.8b4.zip
- OS X: Redsn0w_mac_0.9.8b4.zip
NOTE: This is a tethered jailbreak. Also, unlockers should stay away from this update, for now. Read the iOS versions, specified in this guide, carefully.
Step 1: Restore your device to iOS 4.3.5.
Step 2: Launch Redsn0w 0.9.8b4

Step 3: Click Browse Button and select iOS 4.3.4 IPSW (NOT iOS 4.3.5). Then click Next.
Step 4: Select the options that you need. If unsure, leave it unchanged. Make sure “Install Cydia is selected. Then Click Next.

Step 5: Put your iPhone in DFU mode. Redsn0w will show on-screen instructions. You will have to:
- Press & Hold Power button for 3 Seconds
- Press & Hold Power + Home buttons for 10 seconds.
- Leave Power button but continue holding Home button for up to 15 seconds. Leave the Home button once your Computer detects your device in DFU mode.
Step 6: Redsn0w will begin the jailbreak process. Once complete, your device will reboot.
Your device has been jailbroken. However, since this is a tethered jailbreak, you will have to connect your device to the Computer and do a tethered boot using Redsn0w each time your device reboots. Here’s the guide:
Boot Tethered 4.3.5 iOS
Step 7: Repeat step 2 & 3 (Launch Redsn0w, browse & select the iOS 4.3.4 IPSW)
Step 8: From the options, select “Just boot tethered right now” and click Next.

Step 9: Put your device in DFU mode.
Step 10: Redsn0w will boot your device in jailbreak mode.
If you don’t want to go through the hassle of tethered boot, you should stay at iOS 4.3.3 for now as Comex’s untethered jailbreak patch, used in JailbreakMe 3.0, was patched by Apple in iOS 4.3.4.













