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


I upgraded my iphone 4 to 6.1.3. the BB and SN are 04.12.05 and 5K101XXX with carier Softbank, Japan. Tinyumbrella detected several SHSH like 6.1.2, 6.0.1, 5.1.1b and 5.1.1 on my iphone. I just know, the BB 4.12.05 cannot be unlocked. But, there is any possibility to downgrade and unlocked as well on this iphone? I have tried to downgrade using redsn0w and snowbreeze but both of them field. please your advice. thank you.

asked 12 Aug '13, 03:06

aldi's gravatar image


There's no way to downgrade the baseband on an iPhone 4.

If those 6.x SHSH blobs were automatically saved by Cydia, they are invalid and cannot be used to downgrade your iOS version. You can use iFaith to verify the blobs you have to see if they are usable.


answered 12 Aug '13, 03:09

0x56's gravatar image

0x56 ♦

only 5.1.1 and 6.1.3 are stable. how about possible or not.. Thank you??

(12 Aug '13, 03:21) aldi aldi's gravatar image

The only option is an IMEI unlock. You may try contacting SoftBank to see if they will perform the unlock for you (I have heard that they do not readily do this for customers). Another option is to pay a 3rd party service, however SoftBank is a particularly costly one. iProService offers this service.

(12 Aug '13, 03:41) 0x56 ♦ 0x56'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: 12 Aug '13, 03:06

Seen: 1,673 times

Last updated: 12 Aug '13, 03:41

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