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Sandip Dedhia

Sandip Dedhia

Sandip Dedhia is the founder of, he loves to write on technology, gadgets & web services. At Blogsdna you can read his Windows & freeware software related articles. He is on twitter too @sandipnd View author profile

  • Pingback: Unlock iPhone 3G 4.0.1 iOS & iPhone 3GS 4.0.1 iOS | Unlock iOS 4.0.1()

  • prince

    is it work on ipod touch 2g mc model?

  • mirsad

    it doesn’t work for 3g 4.0.1

  • Johnny

    Does this really work on Windows 7 64-bit?

  • PotLuck

    3G 4.0.1… Fail

  • Tobanna

    Does not work and makes no sense. If you have updated to 4.0.1 then there is no 4.0 IPSW… I only have the 4.0.1 IPSW.

  • It helpful. Thanks.

  • Muhammad

    dear i have Iphone 3Gs, factory unlock, with old bootrom.
    i have updated it to OS 4.0.1. how you can help me to jailbreak this one.
    is there any tool for 3Gs? i have seen all tools for 3G and previous models.


  • PatrinStar

    i have an iPod Touch 2nd Gen MC model with OS 4.0 and redsn0w 0.9.5b5-5 cant be used yet with the MC Models….. do you know of another way to jailbreak OS 4.0? or when redsn0w will be able to handle MC Models??? thank you soooo much!!!!

  • Gil

    I have an Ipod touch 3g 4.0 MC model.
    Everything works fine until i have the annoying “Waiting for reboot” problem (The second one).
    I’ve tried everything to fix it… unplugging, closing and opening redsnow… practically everything.
    The one thing that’s close is if i enter DFU mode and hold the Home button untill it starts working but then my ipod says “Connect to itunes” and then redsnow says the process is finished… But still no jailbroken ipod.

  • Happy Reader

    successfully jailbroke 3g running 4.0.1

  • Happy Reader

    BTW, Sandip, thanks for the detailed instructions!
    @MIRSAD: yo, before posting something as moronic as “it doesn’t work”, consider submitting DETAILS, describing why something didn’t work

  • jennifer r

    just did this and my iphone booted right up synced with itunes and functions as well. cydia is there. thanks a bunch!!!

  • nathan

    my 3g data thing dosn’t work now i have mms but nothing else?

  • Sandra

    It worked perfectly on my 3g ios4.0! I have windows 7.

  • luke

    when i click browse where am i suppose to find the .ipsw file? cant find it anywhere

  • HD

    It doesnt work for me. i have a 3g iphone mb model and it always gets stuck when i get to the ramdisk part and it freezes up and doesnt finish.

    i need help does anyone know what to do?

  • dorito

    It works great. If you’re on 4.01, download the 4.0 ipsw first then do it. Here’s a link to download the firmware:

    Good luck!

  • Sarn

    I have an iPhone 3G with 4.0.1 firmware mc model with baseband 5.13.04. I need help jailbreaking it

  • Sarn

    Is there a jailbreak for iPhone 3G mc model

  • Javier

    Hey can someone help me I downloaded the redsnow file and then the 4.0 file but when I go to it it doesn’t show the iPod box it just shows 5 or 6 files none saying 4.0 and redsnow works fine but the Ipsw isn’t showing up what’s wrong I have a windows 7 I’m trying it in please help!!! I need answers

  • moose

    i have an ipod touch 2nd gen. but i cant download iOS 4.0.1 on it, but i have 4.0
    what do i do?

  • roger

    iphone 3g os 4.0.1 after getting to the 30 second countdown at around 21-19 seconds left it makes a weird 3 beeps….after the countdown is over it saids it does not detect an iphone in dfu mode and that i must have done something wrong ive jailbroken my phone many times prior to this 4.0.1…..does anyone know what that weird noise is???

  • Krish

    You have to download the 4.0 IPSW first even though you have 4.0.1 and you jailbreak the 4.0 firmware instead. I did that instead of trying it on the 4.0.1 firmware and it worked so… I’m assuming it should work for everyone.

  • neon37

    I see that lot of ppl have failed to jailbreak. I have 3g and I think I made the same mistake as ppl. You MUST HOLD the HOME BUTTON until the installation starts ON YOUR CELLPHONE SCREEN not on the computer.

  • Successful on my iPhone 3G with 4.0.1 – Pointed at the downloaded 4.0 IPSW from the link above and voila…worked perfectly. Now running Multitasking, and backgrounds also which I previously didnt have access to…Sweet!

  • Marti

    it works fine!

  • kupilot

    it doesn`t work for ipod touch 2g 8gb mc model.
    have to wait for spirit or similar JB

  • CC

    Thanks Sandip.

    Tested and working fine on 3G.

    It jailbroke my phone and I didnt lose anything off the phone so no need to re load all appps and music etc.

    Once it was finished running Cydia is on the springboard and background wallpaper is enabled and multitasking.

  • Steve

    can anyone help? i am trying to jailbreak iphone 3g 4.0.1 using redsn0w i downloaded old version 4.0 but it will not save as an ipsw so that redsn0w can find it any suggestions

  • Raphael

    Worked for my 3G OS4.0.1, just had to as discribed to download the 4.0 IPSW

  • Josh

    Jail Break 3G with 4.0 firmaware and redsnow.

  • Justin

    Success on iPhone 3G. Had already updated to stock 4.0.1 from a previously jailbroken 3-Point-Whatever-Was-Before-4. Now running jailbroken 4.0.1 just fine, including homescreen wallpaper (which is all I really wanted out of stock iOS4 anyway, and it turned out that that required 3gs.)

  • David

    From safari (by iphone and other apple devices) on


  • Vinek

    Iphone 3G 8 Giga 4.0.1 jailbroke Fine run smoothly. Thanks

  • Nick

    It does work, just follow the guide. 3G 4.0.1 success!

  • Andrew

    Works perfect! Thanks a lot ;)

  • Ahmed Almoola

    Its working great for me, my iphone is 3g ios 4.0.1
    thanks alot bro for this info
    if some one need help plz let me know, send me email i will try to help u with anything that i can.
    my email is:

  • riyaz


    i tried to jailbreak my iphone3g using reds0.9.5 but every step had over but after completing the instalation the phone not getting restarted

  • steve

    i was operating 3g on jailbroken 3.1.3 didnt update to 4.1 software just continued from step 2 and all worked fine!!

  • Robs

    does it work on ipod touch 3g won´t lose mine jailbreak

  • joe

    I have a jailbroken and unlocked iphone 3g I have not updated my firmware yet but want to…. I have no contract on this phone with att for service as an iphone. I do have them for service but took my sims card out of my old phone and put it in my iphone… So now months later they are telling me I have to pay an extra $15 every month because they see i’m using an ipone and it’s required regardless they charge me that for a data plan even though I am not getting anything more for that money?????? Any help please……. email me to help!!!

  • hfpardee

    Ok I went back to the top and read the 5beta is now recognizing the ipsw so it should work on jailbreaking.

  • Brett

    When I download the 4.0 software it downloads it as a compressed zip file so when I use redsnow and browse it doest find the software. Can anyone help me Please!

  • Manish Chhari

    Thanks so much whoever have uploaded this its really helpfull…thanks i finally jailbroken yeehawwwwwwwww..thanks thanks thanks

  • Joe

    I did it with 3g 4.0.1, now i cant make any calls or text anyone how do I remove this?

  • NM

    i tried to jailbreak my 3G that has the 4.0.1 software on it. i used the 4.0 firmware and it went thru, everything was fine, but when i finished with cydia i put my simcard in, it let me write in my pin code but it doesnt see the card… im so confused… any help?

  • My iphone is now ipod. No phone contact, no way to call
    and Cydia icon is showing white.

  • jack

    Great! thanks man…. i jailbreak my iphone 3g 4.0.1 on 5.13 BB i even UNLOCK it using ultrasn0w…no problem occur..

  • Bishart

    thanks so much…
    u saved me from a nightmare….

  • arinder

    am tryin with my 3g phone on 4.0.1 it works with 2 of my phones but it wont one of my frnds phone it wont reboot while in the processof jaibreaking any clue guys

  • hey guys i updated my iphone 3g 8gb to 4.0.1
    and i tryed to jailbreak it
    with the steps mentiond everything goes fine
    after the jailbreak and everything the iphone restarts and
    gose back to it original locked mode ( insert a valid sim card bla bla )
    pls guys help
    this i didnt use the phone for two days :P

  • Brandon

    I did all the steps and my phone is jailbroken but when i got done i lost my phone icon and cydia is a white box,i need my phone back how can i fix this?

  • gayathri

    Awesome!! I had iphone 3g 4.0.1. Went thru pretty smoothly. Thanks a lot!!

  • Jashanr

    works well thanks Jashan