How To Jailbreak iOS 8.1.1 Untethered With Taig

Pre-requisites:

• Turn off any lock screen passcode or Touch ID. You can do this by navigating to: Settings > General > Touch ID & Passcode > turn off Simple Passcode.
• Turn off Find My iPhone by navigating to: Settings > iCloud > Find my iPhone.
• Restore to iOS 8.1.1 via iTunes. OTA updates usually don’t work well with jailbreaks. LINKS BELOW
• Backup your device using iCloud or iTunes.
• Supported devices:
  • iPhone 6 Plus
  • iPhone 6
  • iPhone 5s
  • iPhone 5c
  • iPhone 5
  • iPhone 4s
  • iPad (2, 3, 4, Air, Air 2, mini 1, mini 2, mini 3)
  • iPod touch 5
• Supported firmwares:
• 8.0
• 8.0.1
• 8.0.2
• 8.1
• 8.1.1
• 8.2 beta

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How to jailbreak iOS 8.1.1 on Windows:

Step 1: Download TaiG jailbreak for Windows from here.

Step 2: Connect your iOS device via USB, and run TaiG.

Step 3: Uncheck the second option below Cydia to prevent installing TaiG app store.
Step 4: Now click on the big green button in the center to start Jailbreak.
Step 5: TaiG will now jailbreak your iOS device. Do not disconnect your iPhone, iPad or iPod touch during the jailbreak process. Once the jailbreak process is complete, your iOS device will reboot and you will have Cydia installed on the home screen. It’s that simple!

Source: Redmondpie

iOS 8.1.1 Download Links:
iPad Air 2 (6th generation WiF)
iPad Air 2 (6th generation Cellular)
iPad Air (5th generation WiFi + Cellular)
iPad Air (5th generation WiFi)
iPad Air (5th generation CDMA)
iPad (4th generation CDMA)
iPad (4th generation GSM)
iPad (4th generation WiFi)
iPad mini (CDMA)
iPad mini (GSM)
iPad mini (WiFi)
iPad mini 2 (WiFi + Cellular)
iPad mini 2 (WiFi)
iPad mini 2 (CDMA)
iPad mini 3 (China)
iPad mini 3 (WiFi)
iPad mini 3 (Cellular)
iPad 3 Wi-Fi (3rd generation)
iPad 3 Wi-Fi + Cellular (GSM)
iPad 3 Wi-Fi + Cellular (CDMA)
iPad 2 Wi-Fi (Rev A)
iPad 2 Wi-Fi
iPad 2 Wi-Fi + 3G (GSM)
iPad 2 Wi-Fi + 3G (CDMA)
iPhone 5 (CDMA)
iPhone 5 (GSM)
iPhone 5c (CDMA)
iPhone 5c (GSM)
iPhone 5s (CDMA)
iPhone 5s (GSM)
iPhone 6
iPhone 6 Plus
iPhone 4s
iPod touch (5th generation)