Download RedSn0w 0.9.9b1 - iPhoneHeat

Download RedSn0w 0.9.9b1

iPhone Dev-Team has released the promised major update for the RedSn0w jailbreak. RedSn0w 0.9.9b1 is now available for download. You can download RedSn0w 0.9.9b1 for both Windows and Mac from the links below. Hit the jump to see a detailed list of new features…

RedSn0w New Features

  • Uses DFU mode to try to automatically determine which device and FW you have
  • NO IPSW Required: Fetches pieces of public IPSWs from Apple (once). Non-public IPSWs must be provided manually (once). It then caches those pieces for future use.
  • “Just boot” is a tethered boot. Uses whatever “Preferences” you’ve set for boot logo and kernel boot-args
  • “Pwned DFU” puts your device in a pwned DFU state for some of the iTunes stuff detailed below
  • “Recovery fix” gets past 1015 types of errors (when baseband portion of restore fails). Should work on iOS5 beta too
  • “Select IPSW” is for picking non-public IPSWs, or overriding auto-detection
  • “SHSH blobs” has a bunch of options…
  • “Fetch” – fetch current PARTIAL blobs on device. Should complete in under 10 or 15 seconds. Puts the set of PARTIAL of shsh blobs on your computer as a plist. Checks if Cydia already has a full set for this device and build. If not, it submits this PARTIAL set and returns Cydia’s acknowledgement or rejection
  • “Verify” – cryptographically verifies existing blob files from either redsn0w, TinyUmbrella, or Cydia server. You can select a whole bunch of blobs to verify at once if you want (like the TinyUmbrella directory)
  • “Submit” – both verifies and submits one or more blob files to Cydia. This lets you copy your entire TinyUmbrella cache of blobs up to the Cydia server
  • “Query” – queries the Cydia server for all available FULL or PARTIAL blobs for a given set of ECIDs
  • “Stitch” – stitches either FULL or PARTIAL blobs to a STOCK or CUSTOM IPSW
  1. Stitching is NOT yet supported on iPhones! Need to work out the baseband part of the restore process.
  2. FULL blobs stitched to a STOCK IPSW gives you a completely self-contained signed IPSW that iTunes will accept without any tricks (no need to go into pwned DFU mode, no need to start TinyUmbrella TSS server, no need to redirect to Cydia server for blobs)
  3. PARTIAL blobs stitched to any IPSW requires you to go into pwned DFU mode before running iTunes. No need to start TU or use Cydia though.
  4. Stitching either FULL or PARTIAL blobs to a CUSTOM IPSW also requires a pwned DFU start before iTunes restores. No need to start TU or use Cydia though.
  5. Will eventually support fetching the blobs directly from Cydia instead of a file on your computer

redsn0w 0.9.9b1

Supported Devices/Firmware

RedSn0w 0.9.9b1 supports

  • All devices except iPad 2 (which can jailbroken on iOS 4.3.3 with Jailbreakme 3.0)
  • Untethered for 4.1, 4.2.1, 4.3, 4.3.1, 4.3.2, 4.3.3
  • Tethered for iOS 4.3.4, 4.3.5, and all iOS 5 betas

Download RedSn0w 0.9.9b1

Update 1: RedSn0w 0.9.9b9 is now available for download. Supports iOS 5.0.1 and Custom IPSW feature comes to Windows.
Download RedSn0w 0.9.9b9

RedSn0w 0.9.9b1 is available for both the Windows and Mac OS. Download links:

  • Download RedSn0w 0.9.9b1 for Windows [Mirror 1]
  • Download RedSn0w 0.9.9b1 for Mac [Morror 1]

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36 comments… add one
ken September 19, 2011, 5:17 pm

hi, i have an ipone 4g ios 4.3.5 can i downgrade to 4.3.3 without shsh.

iPhoneHeat September 19, 2011, 9:22 pm


rajhere September 20, 2011, 8:46 am

Yes you can donwgrade back ios 4.3.5 to 4.3.3 without shsh blobs

Birdman007 September 20, 2011, 9:22 am

How? How do u downgrade from a higher version than 4.3.3 without having an SHSH blob? I messed up and upgraded to 4.3.4 months ago, & I’ve been paying for it ever since. I can’t STAND having to always be near my laptop. I’M TETHERED! GOT DANGIT!!!

Omar September 20, 2011, 12:10 pm

How can you do it ?
I wish if I can downgrade mine to 4.3.3 ..
Please do tell.

ken September 20, 2011, 1:07 pm

how please,i will like to how it will be don

iPhoneHeat September 20, 2011, 2:28 pm

No, you can NOT downgrade without SHSH Blobs. (Deleted the link from your other comment)

3eboz September 20, 2011, 3:31 am

What can i do to downgrade to 4.3.3 if i dont have shsh
can i get shsh for the 4.3.3 by any other way or should it be from my device that ill downgrade

Z!G October 20, 2011, 9:10 pm

there will never be a way to downgrade w/o SHSH blobs. Whenever you see a site that claims to do so dont do it. all it does is mess your phone up. unless the Dev-Team releases a way to do so then there is no hope for that. sorry. trust the Dev-Team, i0nic, and MuscleNerd only. No one else.

iapplecenter September 20, 2011, 4:23 am

very nice work!!! all clear

kitty September 20, 2011, 9:19 am

i would like to know can i re-jailbreak with redsn0w 0.9.9b1 for iphone 4 4.3.3 bb 04.10.01 does this upgrade the bb.

iPhoneHeat September 20, 2011, 2:26 pm

There’s no need to re-jailbreak.

saiganesh September 20, 2011, 11:09 am


i’m having iphone4 32gb with ios 4.3.5 n latest baseband
i want to jailbreak my iphone 4 with redsn0w. i have done the steps as it shown & later
its says
uploading first stage of data

later its displaying “no identifying data fetched”

can u say me what i have to do to resolve it

leeheff September 30, 2011, 1:12 pm

did you ever find a solution? cant seem to figure it out.

Sandeep September 20, 2011, 8:46 pm

When i try to jailbreak my 3gs on BB 6.15 , Redsnow throws an error which says “Blobs are corrupted”

Jesus September 21, 2011, 9:54 am

How can I update my jailbroken ipod touch 4g (iOS 4.3.1) to a 4.3.3, since I dont want the 4.3.5. I tried to download an .ipsw for ios 4.3.3 and I did shift click and update on itunes but a error pops out “The iPod JESUS4 could not be updated. An unknown error occurred (3194)”
please help me with this, Thank you

MAX September 21, 2011, 12:04 pm

i was using a jailbroken unlocked iphone 3gs 16GB my friend bought me from singapore after 3-4 months one morning it suddenly shows connect to i tunes ,so i connected it to itunes then it prompted me to restore so i did but nothing happening it still displays connect to i tunes, please help please .

soel September 21, 2011, 7:27 pm

can i unlock iphone 4 4.3.3 bb 4.10.1 using this???

Sai Ganesh September 25, 2011, 1:32 am

No u can’t unlock with dis for bb 4.10.1

youness September 22, 2011, 3:23 am

Uses DFU mode to try to automatically determine which device and FW you have,,,,,how I can know that?

Ken September 23, 2011, 7:04 am

If i jailbreak my iphone 4g ios 4.3.5 tethered can still go back to untethered .

MAX September 27, 2011, 1:40 pm

i tried restore it worked but now it shows emergency calls only what should i do now ?please help (iphone3gs,16gb)

Tamoor Haidar October 2, 2011, 2:27 am

I am trying to jailbreak my iPhone 4.3.5 teathered but it keeps on saying ‘No identyfying data fetched’.

Someone please help me asap.

thesaipankid October 3, 2011, 6:07 am

I have an iPhone 3GS 4.1 running on baseband 6.15.00 and I’m trying to update to 4.3.3 bur I’m getting error 3194 on iTunes. I’m using a 4.3.3 custom firmware to update but i’m still getting this error is there a way to update without error?

Z!G October 20, 2011, 9:26 pm

You will need 4.3.3 blobs. if you dont have them then it is not possible

rabindra lamsal October 19, 2011, 10:37 am

Thanks….really helped me alot..

mado November 8, 2011, 12:42 am

no service on iphone 3gs

mado November 8, 2011, 12:45 am

how can i fix a no service problem on my 3gs iphone

wooo November 22, 2011, 11:36 am

It doesnt fucking work!

Donat January 7, 2012, 3:05 am

hi, i booted my iphone(4.3.5) mistakenly with redsn0w_win_0.9.9b9d. now my iphone dosnt work , even I try boot now with redsnow 0.9.9b1. it wont work. please help me, I dont know what to do?! December 3, 2014, 2:48 pm

Thanks for sharing your thoughts about cydia repos. Regards

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