Download iOS 4.0.1 Firmware iPhone 4, 3GS, 3G 2G Build 8A306

Download iOS 4.0.1 Firmware for iPhone 4, 3GS, 3G Build 8A306

Apple has released the iOS 4.0.1 for iPhone 4, 3GS, 3G and iPod Touch 3G, 2G and is now available for download. You can download iOS 4.0.1 from the links below. iOS 4.0.1 is released to fix the reception issue.

iOS 4.0.1 firmware

iOS 4.0.1 is available for download for iPhone 4, iPhone 3GS, 3G and iPod Touch 3G, 2G. To install iOS 4.0.1 on your device, connect your iPhone/iPod Touch to iTunes, new firmware availability message will appear then hit the “Download and Install” button. You can also download iOS 4.0.1 firmware from the links below.

WARNING: All the jailbreakers and unlocker MUST stay away from iOS 4.0.1 until further notice.

Download iOS 4.0.1 Firmware

You can download iOS 4.0.1 firmware (IPSW files) for iPhone 4, iPhone 3GS and iPhone 3G from the links below

Download iOS 4.1 for iPhone 4

Download iOS 4.1 for iPhone 3GS

Download iOS 4.1 for iPhone 3G

Download iTunes 9.2


Now that you’ve download iOS 4.0.1. It’s best time to save SHSH blobs for iOS 4.0.1:

How to: Save SHSH blobs for iOS 4.0.1


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145 comments… add one
Whiplash July 16, 2010, 12:01 am

Cool, I hope the iOS 4.0 Jailbreak is only days away from being released. I got a new iPhone 3GS on 4.0 and wanna JB!!!!


ppuniversal July 16, 2010, 1:22 am

i think you can still JB 3GS… just look around this website.

Whiplash July 16, 2010, 1:54 am

thanx, but it ca only been done if it was JB before and u saved some file.

Sadly it cant be done yet

Dhruv July 16, 2010, 11:42 am

i m watoing for 2 months when they releaseed 3gs jailbrake tools???????

danny May 19, 2013, 12:40 am

Click “Restore.” ITunes downloads the latest software (if a copy is not stored on your computer), erases the iPhone 3GS, reformats it and reinstalls the iOS software. When the reinstall completes, you have the option of restoring the device from a selected back-up file or setting up the device as a new phone.

Read more: How to Reinstall iPhone 3GS Software | eHow

Amin July 16, 2010, 1:23 am

4.0.1 is even wors than 4.0 on my 3GS

Brandon July 16, 2010, 1:57 am

Are you retarded? If you would’ve read. It’s for the iPhone 4! Not 3GS. Yes it’ll work on 3GS… But it’s to fix reception on the new iPhone… Not 3GS…. Damn people are dumb.

Smitty July 16, 2010, 10:30 am

Nope, the new firmware is for all iphone. According to Jobs, all the iphones display incorrect signal strength. Weather you believe it’s true or not is up to you.

Kaizoku July 16, 2010, 3:43 pm


Anon Ymos July 16, 2010, 1:42 pm

with regard to the following on top of this very page I do enjoy the tone of your post: “Apple has released the iOS 4.0.1 for iPhone 4, 3GS, 3G and iPod Touch 3G, 2G”. ROFL!

steve October 2, 2010, 10:52 am

I have a iPhone 3GS with the 4.1. Is there going to be a jailbreak for this and if so, when?

drewbocop October 17, 2010, 11:53 pm

I have this problem too. I have a friend who has a iPhone 3G with 4.1. I’ve tried every thing and can’t even roll back the firmware properly. I know what I’m doing as I’ve JB and rolled back my new iPod Touch 3. Is it even possible to hack this iPhone set up?

mike S July 16, 2010, 3:16 am

Yup, waiting for a jailbreak for the 3gs with iOS4 as well…

erikve88 July 16, 2010, 7:38 am

can i unlock the 4.0.1 os yet or not and how about the os4

vodanhz July 19, 2010, 11:32 am

i think so.


Obviously avoid today’s 4.0.1 update until JB tools are updated. Luckily, no baseband change so ultrasn0w lives on 🙂 5:48 AM Jul 16th via web

blump July 16, 2010, 2:14 pm

“iOS 4.0.1 is released to fix the reception issue”

You can’t fix a hardware fail with software. You can check in detail the proof of the obvious at

Smitty July 16, 2010, 7:51 pm

I agree, it’s hardware problem and can’t be fixed on iPhone4. Just don’t hold your phone in a normal way or use duct tape like Consumer Reports recommends.

congchuaso1 July 21, 2010, 7:19 am

just want to jail break iphone

Smitty July 23, 2010, 12:55 am

Anyone else experiencing issues with Ios4?
Upgraded my 3GS to 4.0 a few weeks ago and occasionally the phone suddenly restarts and goes to apple logo for a long time, then finally homescreen appears.
Also phone has called people on it’s own. Never had that happen before in the last 4 years owning iPhone.
Wifi icon dosent always show when connected to wifi.
The phone uses much more memory and can be slow at times.

tarekelmalah July 24, 2010, 7:24 pm

i have 3gs ios4 and ive never had any problems with it since the day it came out and im the wifi all day long !
u should try to restore ur iphone that should do the treat im guessing it did not install completely or correctly on ur iphone !

Smitty July 27, 2010, 12:24 pm

Good to know it’s not IOS4. Love it except an occasioal glitch. Think you’re right that something went wrong on install, gonna reinstall. Thanks

Ipad Touch August 3, 2010, 2:55 pm

what is with my ipod touch isnt there an update ??
only for iphone ???

Smitty August 4, 2010, 2:59 am

What iPod model, and what firmware?
Check this chart, you will find your answer at

wayne October 1, 2010, 10:57 pm

how about ipod touch 3g?

FLat August 3, 2010, 6:46 pm

I downloaded IOS 4.0.1 firmware from this site – how do I use this to upgrade my phone?
My phone is currently running on 3.1.3 with spirit jailbreak.
I saved shsh with Tiny Umbrella – it shows as 4.0.1.shsh – is that correct? I thought it would show as 3.1.3

Smitty August 4, 2010, 12:59 am

There is no need to download this firmware. Upgrade to 4.0.1 from iTunes, then use or to jailbreak from your iPhone. Then unlock with ultratrasn0w from cydia. Good luck.

FLat August 4, 2010, 1:55 am

Thanks for the reply Smitty. I already downloaded the ios 4. Do I have to download it through iTunes again or is there another way to install the already downloaded ios. I’m a little short on bandwidth and would prefer not downloading it again if at all possible.

Smitty August 4, 2010, 2:51 am

I had some major issues with the iOS4 downloaded from above so can’t recommend using it. It’s always best to use the latest firmware, there are some bugs that were fixed. I think it would be worth the time to download the new 4.0.1 direct from iTunes, then from iPhone browser.

FLat August 4, 2010, 6:59 am

Thanks again Smitty, I’ll follow your recommendation

speed_manan August 5, 2010, 12:48 am

hello smitty
dear i upgraded my iphone 3gs as told by you,i used itunes to upgrade it to 4.0.1 from 3.1.3. Now i’m stuck at Emergency Call Screen! (I’m not blaming you 🙂 ) i have a new bootrom 3Gs and i don’t have official carrier sim with me and i’m completely unaware about my official carrier! how can i by-pass it now? this happen when we upgrade the iphone using itunes..i have one more 3GS with me,same type,new bootrom etc but its on 3.1.3..can i upgrade it with some custom firmware so i don’t have to activate it afterwards,is it possible?

kind regards

Smitty August 5, 2010, 7:53 am

I’m sorry for your situation. Try this method using phonebook sim to hacktivate the phone. Hope it helps.

speed_manan August 8, 2010, 1:50 am

well i did it like that. But now what i’m facing is even more strange, i don’t know why its doing like this now. I activated my phone using the PHONEBOOK sims,it got activated. Then,when i inserted my sim in it and unlocked it…a screen of emergency call is back saying A Different sim is detective,connect to itunes. And Itunes is again saying to insert official carrier sim. Again whole process again,but still when i insert my sim it goes back to activation.

i hope you have some solution for this too.

Kind Regards

Raven August 7, 2010, 5:22 am

hi speed,

you can activate your iphone using phonebook sim cards like Onesim. this video might help:

speed_manan August 8, 2010, 1:51 am

well i did it like that. But now what i’m facing is even more strange, i don’t know why its doing like this now. I activated my phone using the PHONEBOOK sims,it got activated. Then,when i inserted my sim in it and unlocked it…a screen of emergency call is back saying A Different sim is detective,connect to itunes. And Itunes is again saying to insert official carrier sim. Again whole process again,but still when i insert my sim it goes back to activation.

i hope you have some solution for this too.

Kind Regards

Raven August 8, 2010, 9:52 pm

Hacktivation app is now available in cydia. Try this link:,com_kunena/Itemid,49/func,view/catid,54/id,1073797507/
It worked for me 🙂

garlicb1 August 10, 2010, 3:34 am

I used jailbreak 2.0 on Saturday and it worked fine on my 3gs 4.0.1. I came to work to help a coworker do the same and after we enter the url in safari and slide to jailbreak it just times out. Is this a problem with the load on the server or is there a problem with my coworker’s iPhone?

Thanks in advance.

garlicb1 August 10, 2010, 8:21 pm

It must have been the server because he went home and tried it later in the evening and everything worked fine.

Thanks for all the hard work.

SteveT August 13, 2010, 7:49 pm

Just a quick question, a work mate has updated to 4.0.2 and wants to drop back down to 4.0.1. He has downloaded the 4.0.1 firmware and done the whole shift+click restore but iTunes tells him he firmware is not compatible.

I am assuming it’s too late for him to jump back down to 4.0.1? Is this because Apple is no longer signing 4.0.1?

Neil October 10, 2010, 5:52 am

steve t did your work mate save the SHSH file in tu, if it was save you should be able to downgrade back to 4.0.1

Larshara August 16, 2010, 5:09 am

I’m pretty poor at anything technical and I’m trying to downgrade from the 4.0.2 to 4.0.1, but the 4.0.1 I have downloadedting to be restored in iTunes. What am I doing wrong?

iPhoneHeat August 16, 2010, 11:21 pm
Larshara August 17, 2010, 2:53 am

I have done all of this. But when I try to restore to 4.0.1 download, iTunes is not able to open it.

Neil October 10, 2010, 6:14 am

Larshara, d/l the 4.0.1 firmware for your drvice from flexiburn (goggle it) if its an zip file you must rename with the extendion .ipsw and save it in your desktop, connect your device, open tinyumbrella (google it) it will open if u have Java envir. loaded if itune opens close it, see if tu sees your device, click on options and select verison for your device, click Start TSS, and then open itune and enter “DFU” mode by hold down power button and home key together, up to 10 seconds or more, when the apple icon pops up let go the power button but keep pressing the home key until itune indicates u need to restore. let go the home key… hold down shift key on ur computer and click on restore. new screen pop up slect the 4.0.1 firmware u’ve d/l if all goes well it should downgrade to 4.0.1 good luck.

Neil October 10, 2010, 6:24 am

forgot to ask u did u save ur SHSH always save ur SHSH for each firmware u use, this way u can always go back should something goes bad.

saad823 August 19, 2010, 2:50 am

how do I put the firmware on my iPhone 3G now?? I have a MacBook Pro if that helps

DAVID August 19, 2010, 11:34 pm

i have a problem after upgrade to 4.0.1 version it goes apple logo for to long .. anyone can help me ?

DAVID August 19, 2010, 11:50 pm

is still the same the apple logo is there .. can someone help me pls .. thanks

speed_manan August 20, 2010, 7:47 pm

Can somebody help me creating one IPSW file (which has to be run later on itunes for a restore) I just downloaded 4.0.1 from this site..and now what i see in the folder is 2 subfolders and 3 DMG files :S there’s no IPSW file in the folder. what to do with these file?how to restore with these file?
your guidence will be appreciated alot!

David August 23, 2010, 5:56 am

i am having same problem. pls help

speed_manan August 24, 2010, 2:07 pm

Anyone? HELP!!!!

Smitty August 25, 2010, 11:30 am

Simply rename the file from .zip to .ipsw

speed_manan August 26, 2010, 2:22 am

now that something really weird! there’s a zip folder having 3 dmg files in it. I’m looking for one IPSW file of 4.0.1,anyone know from where i can get it? or someone help me with these 3 DMG files,how to restore with these files! regards

ter2001 August 26, 2010, 5:05 pm

I’m having the same problem. I’ve downloaded the firmware file but only see .dmg files. I tried to rename the name zip file to a .ipsw but there is nothing in those files when I go to redsn0w

Smitty August 28, 2010, 9:55 pm

Can you restore the ipsw to your phone with iTunes using shift+restore?

speed_manan August 28, 2010, 10:37 pm

hey i got the solution.for your info…download it on mozilla firefox 🙂 i just did it and saw ipsw in the folder this time

Iman August 20, 2010, 8:59 pm

I upgrad my iPhone 3GS to the 4.0.2 where can I get the jailbreak . Help me

Smitty September 1, 2010, 8:06 am

The method I linked to may be fake, people are not having success with it, don’t waste your time. Not possible to downgrade without shsh saved.

Neil October 10, 2010, 9:24 am

opps, sorry to hear that… first u may have lost the unlock, second there is no j/b for 3GS 4.0.2 as of yet! what u can try is downgrade to 4.0.1,4.0 or 3.1.3 using tinyumbrella, did u save your SHSH before? if u did then shouldn’t be a problem to go back! d/l all 3 firmwares and save then to your desktop any firmware that is in zip format must be rename to .ipsw otherwise apple will not recon. d/l tinyumbrella if u don’t have it, make sure u have java envir. loaded on computer. open tu, connect ur device (makesure the files u’ve d/l is for your device). if itune opens up, close it!! see if tu see your device,click “save SHSH” if its sucessful click option select one of the three files u d/l then click Start TSS open itune and put the device in DFU mode by pressing both the power and home key together wait until apple icon shows up then release the power button but keep pressing the home key until itune say restore release home key!! hold down shift and click restore together, new screen opens up locate the file that matches the file u selected in option of tu if all goes well here u r on ur way back. if this file don’t work u need to repeat the steps with the other files hopefuly one of those files will work for u. if none of the files works then just kick out with tu and let the device reboot it self and ur back to the begining. good luck

David August 25, 2010, 6:00 am

Where is the file for iPod touch 2g MC model?

Aley August 31, 2010, 8:28 pm

I DONT HAVE THE SHSH! Just got my iphone 4! What do i do?

iPodalot September 12, 2010, 2:19 am

Wait until the ios 4.1 firmware jailbreak or downgrade to 4.0

Songwut September 11, 2010, 6:36 am


3stan September 13, 2010, 12:31 pm

hey im currently on iphone 3G ios 3.1.3 and want to upgrade it to 4.0.1 and then jailbreak it with jailbreakme…this works with the link right?

Siem September 13, 2010, 5:33 pm

I have iPhone 3G runing Os 3.1.3 and i couldn’t update it to iPhone1_2_4.0.1_8A306_Restore. It responds with “Not eligible to update” Message.
Can any one help me. 🙂

Vikas September 19, 2010, 4:27 am

I have iphone 4 ios 4.0.2, can you help me in unlocking it?

mendel September 20, 2010, 11:57 am

bonjour g un 3gs 4.1 mc modoel et je ve le jailbreaker
merci d avance (ge ne pa enregistrer le fichier shsh)

mendel September 20, 2010, 3:29 pm

g un 3gs mc model 4.1 je ne pa le shsh coment faire pour le jailbreker MERCI D AVANCE

shan September 22, 2010, 10:25 pm

i tried the jb on my iphone 4 it says the version is too new can any one help me with it

wayne October 1, 2010, 10:53 pm

Where can i download iso 4.0.1 for ipod touch 3g?

steve October 3, 2010, 7:26 am

does anyone know when the new jailbreak will be coming out for the 4.1 iphone 3gs?

Nunn October 5, 2010, 5:55 am


Neil October 10, 2010, 6:20 am

tone down, and maybe someone just might help you….you are “ASKING” for help, don’t need to be vulgar please.

saad823 October 11, 2010, 10:59 pm

Hey, Can someone please help me jailbreak and unlock my iPhone 3G 4.1 Firmware?? I have a Mac if that’s any help and is blocked in the country I currently live in :o.

iPhoneHeat October 12, 2010, 12:39 am

blackra1n works for iOS 3.1.2 only

Benjamin October 14, 2010, 3:45 pm

My iphone 4g with firmware 4.0.1 dont reboot(i TUR ON MY PHONE AND THE LOGO APPLE STOCK ) I try to restore with itunes 10 and these firmwares 4.0, 4.0.1 and 4.0.2 an igot this error 3194
please help me? I dont know what to do o maybe I have to restore with firmware 4.1 but i have a problem couse i use cydia sand my iphone also was unlock

iPod or not? October 16, 2010, 7:07 pm

It’s very interesting that NOBODY ANSWERED the question: “Where is the downloadlink for iPod touch 2G?”
I’ve an iPod touch 2G and I try to ask again for all who have asked and recieved no anwer:
Please can someone tell me why there’s no downloadlink for iPod touch 2G? And where can I get the firmware?

Sohail October 21, 2010, 7:55 pm
James October 26, 2010, 1:28 am

can someone help me please? i have just updated my ipod touch to 4.1 but i want to jailbreak it and i dont no what do plz help me

iPhoneHeat October 26, 2010, 6:46 am

use limera1n or greenpois0n.. checkout iPhone jailbreak category

portia October 29, 2010, 5:08 am

with my iphone 3gs it has itunes 10 on it for a 64 bit. does the ios 4.0.1 have a b4 bit for it to download

david5498 December 5, 2010, 6:43 am

i have ipod touch 4 with 4.2 software and i wanna jailbreak but it wont work cus its too new

Frank January 2, 2011, 8:33 am

I downloaded the 4.0.1 so I can restore but after I download it how do I use it?

danni January 4, 2011, 4:25 am

will it work for ipod touch 4.2.1 im a bit stuck and dont know what to do?

Titoakagio January 26, 2011, 8:15 am

I actually updated to 4.2.1 and I’m not sure if I should just wait till new jailbreak or downgrade, which I don’t want. If anyone knows when they’ll make a new jailbreak for 4.2.1 or if they will please email I really want to jailbreak. [email protected]

Ashraf February 13, 2011, 4:27 pm

I like this

Ganesh March 31, 2011, 7:18 pm

Hi iphoneheat…!

I am having iPhone 3gs (Dont know whether it is old r new boot rom)

Basically in my iphone 3gs i’m using version 3.1.3 & Baseband 5.12.01… now i would like to update it to version 4.0.1…!

now my problem is that will it be able to unlockable ?

also how to find the iphone is old r new bootrom..?
what is the baseband of 4.0.1 ?

if its unlockable what tool i have to use…?

Marmar March 7, 2012, 11:27 pm

Sory i have a iphone 3g but the wi fi not working it was working but the. 2 last day i have a connection in my home but i cant connect the wi fi in my phone why

Carmina Niedermeyer March 9, 2012, 7:34 pm

You could invest in a good editor as well.

Rajesh Bhadani July 13, 2012, 3:17 pm

i like your site…. but

i am waiting for iOS 5 for my iPhone 3G

assem September 30, 2012, 4:01 pm

i have iphone 3g software version : 5.1.1
most system icon are gone now cant use it
if i install IOS 4.1 For IPhone 3G .. is it fix ??
or what can i do??
plz help

AHMED October 12, 2012, 12:40 am

how can i upgrade iphone 3g 4.2.1 to 4.3.3 or ios 5XXX

Shivakumar October 17, 2012, 12:48 am

Hai how can I upgrade iOS 4.0.1 to my 3GS iPhone

Florjan January 15, 2013, 9:16 pm

Software for iphone 3

sewe February 21, 2013, 6:41 pm

iOS 4.0.1 is the best for 3G,considering compatibility issues

gordon January 18, 2013, 10:49 pm

hi i have iphone 3g .version 4.2.1 . everytime try get Apps says i need more version but cant seem update too higher one . just cant get please help

Danny May 19, 2013, 12:56 am

hi guys , sorry for the reply .I have a problem with the charging of the battery Very slowly charge. Spend good time when use the energy 1% on 10 minutes playing music so, the battery is OK .whether any from thees updates will work about this case ,the phone is 3GS. .THANK YOU.

atamirko June 13, 2013, 10:57 am

Have iOS6 on iPhone 3GS and all updated but lost wi-fi possibility. Why? How can i restore wi-fi?

arslan July 21, 2013, 3:27 pm

i install software on iphone 3g but half software become left it gives a erorr.plz tell me solution

Kennedy August 18, 2014, 3:13 pm

i have a iphone 3g ios 4.1.2 and my apple logo stuck
my version is deleted because i erase all setting on my iphone
how to restore it pls help me

Alisha Ross July 20, 2020, 9:07 am

Why users still make use of to read news papers when in this technological world the whole thing is presented on net?

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