Redsn0w Unable To Recognize Specified Ipsw

[Florio Bessinger]

Hereare few simple solutions to fix "Unable to recognize specified IPSW" error while jailbreaking Apple iOS using popular "redsn0w" jailbreaking utility from iPhone Dev Team.

While there can be more than one possible reasons for "Unable to recognize specified IPSW" error the most common one would be either the wrong redsn0w version (Fix by updating to latest version) or the wrong iOS Firmware IPSW file, if not, here are few other possible solution to get around the error message :

After an entire day and night of Google searches and constant failures, I have finally found the solution. I know you've posted this 5 years ago, but you've just saved my day and a poor old iPhone 3G.

The trick was to point redsn0w (0.9.4) to iOS 3.1.2 even though I was running (I downgraded to) iOS 3.1.3.

Redsn0w 0.9.6b5 jailbreaks iOS 4.2.1 but also provides the added ability to install baseband firmware that can be unlocked for the iPhone 3GS and iPhone 3G. For other iOS devices, redsn0w 0.9.6b5 will simply jailbreak the device but some models will be a tethered jailbreak.

If you are wondering how to use redsn0w to jailbreak and unlock, you are at the right guide. This is a two stage process, first you jailbreak your iPhone with redsn0w and update the baseband, and then you unlock the iPhone 3GS or iPhone 3G with ultrasn0w 1.2 unlock.

If you followed the guide correctly, you will now have an unlocked iPhone and you will be able to use it on other carriers. Devices that can not be unlocked will simply be jailbroken, some of which may be tethered. You can read the difference between tethered jailbreak vs untethered jailbreak, but essentially a tethered jailbreak requires you to connect your iPhone to boot the jailbroken device and use things like Cydia and Safari.

iphone fully jailbroke but ultrasn0w dose nothing for it at all done the ipad BB nothing i can even downgrade my BB to 05.13.04 still nothing i do not know how you managed to do this i followed every step 1000 times over and still no signal no service searching when i finally get 1 signal bar i hit the phone icon and as soon as i do signal gone back to searching then no service i dont get it at all.

3) Close DiskAid and reboot your iphone twice and be patient to wait up to 5 minutes to see the network carrier

of your iphone appearing.

4) restore your iphone from the back-up on your itunes.

Several days after posting about jail breaking a 3G on an xp machine, I was approached by somebody else needing to jailbreak a 3G who was unable to do it with Win7. Once again, using an xp computer with iTunes (iTunes provides essential drivers) and redsnow, everything went perfectly the first time.

I was having IPHONE 3gs with 4.1_8B117 iOS and Baseband 06.15. make sure you select the IPAD base band while jailbraking. I followed above steps and it works for me. couple of things to note:

1. remove SIM card while jail braking.

2. Once Jail break done put your phone in Air plane mode and restart it.

3. after it got boot up make sure you insert a SIM and get out of Airplane MODE and wait for 5 mins.

4. there you go !!! done

I just followed your instructions to jailbreak my phone and it worked perfectly! Thanks for that cause I have tried others with my 4.2.1 ios and none of them ever worked till now. Thanks again for the easy to use instructions

restored & updated via itunes

inserted a sim card to unlock

opened up redsnow (running as admin, im not sure if this helps)

selected my downloaded file of iPhone1,2_4.2.1_8C148_Restore

I did not turn the phone off until redsnow told me to

then put it in ftu mode when redsnow told me to

when redsnow accepted the Iphone the process took about 2 minutes before redsnow let the phone do the rest. The iphone rebooted about 3 minutes after that.

Hi there i have the done everything possible on the net to try and fix my iphone 3gs the problem i have is that everytime i try and reboot or jailbreak my phone turns on but has a white screen and its starting to send my insane god had i known this would have caused me this much stress i wouldnt have wasted my money PLEASEEEEEEEEEEEE HELPPPPPPPP me thanks x

hello i have a iphone 3g on os 4.2.1 with the bb 5.15.

i tried this an its good till the jailbreaking prossess were it attempts to get the ipad bb files then the entire applications shuts down. my system specs are win vista, 2.66 single core p4, 2 gig ram please help my wifi dont work an i want to jailbreak

hi all i followed this guide step to step last week and confirms that it works, unfortunately there is a downside, my iphone 3g on 4.2.1 8c148 now has developed a gps fault due to the unlock phase it barely works and when it does it places me 100 miles out.

BY ALL MEANS YOU GET A FREE UNLOCK BUT BE AWARE THAT THIS HAS AFFECTED MOST USERS WHO HAVE CARRIED OUT THE ULTRASNOW 1.3

hi,

i updated my iphone 3g to ios 4.2.1 and jailbroken it using redsnow 0.9.6b6.now i erased my iphone content and settings from settings menyu.now i try restore the same version using itunes and restored but i unable jailbreak it.during jailbreaking process everything going fine but jailbroken.help me.

Hey

I have iPhone 3g, 8GB (Jail broke & Unlocked) version 4.1 and baseband 6.15.00 and Windows 7 and now i want to update it to version 4.2 so can anyone tell me whether i first have to update it from itunes or not?

from where i can get custom ipsw 4.2?

i have a iPhone 3Gs iOS 4.1 jailbreak with l1mera1n. but now i wanna upgrade to 4.2.1 and jailbreak it using redsnow. will it be the same? and also. if i jailbreak with redsnow. will it definitely be a tethered jailbreak?

Hello, please could you help me?

I have an iPhone 3GS in the firmware 4.2.1. It was in the 5.12.01 baseband.

I tried to jailbreak and unlock it using redsn0w. After ir I entered in Cydia and installed ultrasn0w. After rebooting the system, my iphone keeps locked in apple logo and then after a few seconds it turns to recovery mode!

I am using Tinyumbrella but it is not working! Every time my iphone goes back to recovery mode!

i tried redsnow 9.6b5 to jailbreak and unlocked and unlock my iphone 3g, its working fine upto boot-up then my iphone is not bootup forever. i dont know whats going wrong. i tried all posible way but could not succed. it only shows apple logo.can anyone help please.

I am writing from Africa, bought an unlocked iphone 3g in the UK, i am now back in Africa. Silly me, i tried to update IOS to 4.2, had to revert and jailbreak 4.1, However, repo666.ultrasn0w.com is not loading in Cydia, the massage i get is:

I have read through all the questions and responses and have tried everything including renaming the apple firmware file with a ipsw extention, but I have no luck. When running the redsnow program, it does not recognize any apple firmware. I am trying to jailbreak an Ipad with a 4.2.1 IOS system. Please help.

Thanks!

hello im really stuck and would appreciate any help!, i just got this iphone 4 for christmas and its was running firmware 4.2.1 i needed to unlock it so i searched on google and found this, i jailbreaked and unlocked it and was installing something on cydia that required a reboot, i rebooted once and then on redsn0w selected right option ( boot to something) and it worked, then i did this again, but now my iphone is stuck in an apple logo/recovery mode loop, is not recognised by itunes and ive tried 1 million ways im desperate for help!! (i think my baseband is the 6.15.00) thanks!!

Hey i got ios 4.2.1 on my ipod touch4g. I jailbreaked it without errors and opened cydia. It said that i had to do some updates so i did. Then my ipod rebooted but it is a tethered but i didnt have to libk with my pc. I opened cydia again but it closed immediately. Safari wont open also. Can someone help me plzz?

hey got a iphone4 the other day and it wont turn on at all. Screen is completly black. The person i got it off had it on aplan but let it run out. new to this so if someone has had this problem and could help???

i was so sick of my 3g running slowly, followed instructions worked flawlessly! nice to have it operating properly with no crashes. and being on the up and up with the new ios is nice too. THANX GUYS AWESOME WORK ON THIS ONE!

I jailbroke my iphone 3gs using redsn0w and was successful.

when I went to unlock it with ultrasn0w i accidentally rebooted it without using redsn0w. it has been stuck on the apple logo ever scene.

I tried the tips for re-jailbreaking iphone 3gs 4.2.1 with 6.15 base band, but its a no go for me. I keep getting a white screen when I try rebooting it with tethering, and it goes no where. I hard reboot it and try again. I tried re-doing the jailbreak, still no go, got the white screen when it tried starting up.

Hey guys with the white screen stuck while installing Custom Firmwares or similar.

I am so happy to be having Tinyumbrella saving my old SHSH. So I could downgrade to 3.1.3, which was saved actually.

And then it worked and I could install my 4.2.1 again!

Great!

And for those who have just a white icon as cydia on their screen just open redsn0w click on just boot and after the phone reboots you should have the normal cydia icon on your screen!

Good luck, i just got mine working after two days of recovery mode!!!

1. open Redsn0w use 4.2.1 original firmware

click on just put into DFU mode wait till the process is over

2. Launch Itunes, shift/option restore choose the 4.2.1 custom firmware (you can make it using pwnage tool or i can send it to you), the phone should restore without a problem from there!

I jailbroken and unlock my 3G iphone and it was working fine. I reset my iphone with erase all content and i am unable to use my iphone now. It does not restore using itune now. Please suggest how can i make my iphone usable. Itune gives restore error with error code 1015,

If you are stuck on waiting for reboot your iPhone is not yet onto the iPad firmware. Just hard reset your iPhone by holding down power and home for about 30 seconds and you will exit from DFU mode where you can reboot and try again.

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