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

Pangu provides an iOS 9.0 untethered jailbreak. TaiG provides an iOS 8.4 and 8.3 untethered jailbreak.
Check @PanguTeam, @taig_jailbreak, @saurik, and /r/jailbreak for news and updates.
You can use Cydia Impactor if you need to un-jailbreak an 8.1-8.4 device without restoring.
Instructions for jailbreaking iOS 8.0-8.4.
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How to fix some mysterious problems.

Dear all, I am using iphone 4, version 4.21. After using greenpois0n b4, followed 3 steps (few senconds), for about 2-3 minutes, it says failed. at the monent, I try to push sleep key, but my iPhone just dead, can't even boot for one hours already. Anyone got the same problem? Thanks for help.

asked 17 Feb '11, 02:38

jjsun777's gravatar image


u still in dfu mode.. try press n hold sleep+home until apple logo comes up


answered 17 Feb '11, 03:29

rayr26's gravatar image


Do a reset and put your phone into DFU again. Then restore fresh 4.2.1, then gp. Works 100%. Ask again if you have problems with that.


answered 17 Feb '11, 04:02

http's gravatar image

http ♦

Hi, thanks for your answer, it works. Now I turn it on and off again, and try to jb, but it always goes to dfu mode, any way to jb my iphone? thanks a lot.

(17 Feb '11, 04:00) jjsun777 jjsun777's gravatar image

With goes to DFU, you probably mean USB logo. Try gp again, if not works, fresh restore, then gp.

(17 Feb '11, 04:04) http ♦ http's gravatar image

Hi, I did reset it, but how I go into dfu mode? sorry, I am new.

(17 Feb '11, 04:08) jjsun777 jjsun777's gravatar image

Hi, got it worked, lots thanks a lot for your help.

(17 Feb '11, 05:23) jjsun777 jjsun777's gravatar image
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Asked: 17 Feb '11, 02:38

Seen: 2,341 times

Last updated: 17 Feb '11, 09:41

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