Help with jailbreaking and Cydia for iPhones, iPads, and iPod touches.

iOS 8.3, 8.2, and iOS 8.1.3 are not jailbreakable. There is no way to downgrade from iOS 8.3, 8.2, or 8.1.3 to earlier versions.
Instructions for jailbreaking iOS 8.0-8.1.2. See /r/jailbreak on Reddit, @PanguTeam, and @TaiG_jailbreak for updates.

Before asking a question, check Frequently Asked Questions to find quick answers!
How to fix some mysterious problems.

When ever I try to jailbreak my iphone 4 running on ios 6.1.3 I always get the message failed to decrypt kernel. Please help me with trying to fix this. Thank you!

asked 04 Apr '13, 21:43

twisteraml's gravatar image


edited 04 Apr '13, 21:52


Are you pre-selecting the correct 6.0 ipsw?

(04 Apr '13, 22:05) spockers ♦♦ spockers's gravatar image

What is the exact filename, and how old (approx) is your phone? Is it GSM (uses a sim card)? Also, you want 6.0 (six point zero), not any other version, regardless of what the phone is actually running.

(04 Apr '13, 22:27) spockers ♦♦ spockers's gravatar image

It is a iphone 4 gsm 16 gb. the exact file name looks like the iphone3,1_6.1_10B144 restore.

(04 Apr '13, 22:30) twisteraml twisteraml's gravatar image

i fixed it ;) thank you for your help. I had the wrong ipsw

(04 Apr '13, 22:34) twisteraml twisteraml's gravatar image

No prob. :D

(04 Apr '13, 22:35) spockers ♦♦ spockers's gravatar image

im on 6.1.3 i selected 6.1.3 but it says failed to decrypt kernal

(12 Jun '13, 23:10) shadowowolf shadowowolf's gravatar image

@shadowowolf READ the above comments. No-one said to select 6.1.3.

(12 Jun '13, 23:12) spockers ♦♦ spockers's gravatar image

but why would i select 6.0 its not 6.0 its 6.1.3. what.

(19 Jun '13, 04:44) shadowowolf shadowowolf's gravatar image

Redsn0w has not been updated to recognize anything higher than 6.0. You select 6.0 to trick redsn0w.

(19 Jun '13, 06:39) justinred ♦ justinred's gravatar image

@spockers even if i'm on 6.1.2 i should choose 6.0?

(13 Mar '14, 11:28) xSulo xSulo's gravatar image

When ever I try to jailbreak my iphone 3 running on ios 6.1.2 I always get the message failed to decrypt kernel. Please help me with trying to fix this. Thank you!


answered 05 Apr '13, 09:36

curlo's gravatar image


hola cada vez me dice failed to decrypt kernel tengo ios 6.1.3 y el iphone 4 es del 2010 gsm por favor ayuda.


answered 14 May '13, 04:50

carranc's gravatar image


habla englais por favor

(14 May '13, 05:22) theiphoneguy ♦ theiphoneguy's gravatar image
Your answer: (please use the "add new comment" button unless you are actually answering the original question)
toggle preview

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text]( "Title")
  • image?![alt text](/path/img.jpg "Title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported



Asked: 04 Apr '13, 21:43

Seen: 71,342 times

Last updated: 13 Mar '14, 11:28

JailbreakQA is by chpwn and comex.
About JailbreakQA. Powered by OSQA.