iPhone 3.1.2: iTunes Update
iPhone, iPhone 3G S, iPhone OS 3 | Hans | October 8, 2009 at 12:30 pm
Almost a month ago, Apple released the iPhone 3.1 update. Today Apple has released the iPhone 3.1.2 update for iPhone and iPod Touch users. This update does not really add anything new, but it does fix important bugs so iPhone and iPod Touch users should update.
The iPhone 3.1.2 software update includes the following:
- Resolves sporadic issue that may cause iPhone to not wake from sleep
- Resolves intermittent issue that may interrupt cellular network services until restart
- Fixes bug that could cause occasional crash during video streaming
How to update to iPhone 3.1.2
1. Connect your iPhone or iPod Touch to your PC.
2. Launch the iTunes application and click the Check for updates button.
3. iTunes will show you the above window saying: “iTunes will update your iPhone to iPhone 3.1.2 software and will verify the update with Apple“. Click on the Update button.

4. An iPhone OS 3.1.2 software update window will show up, click on the Next button. Read and and accept the license agreement. Once you’ve done that your download will start.
5. The file size of this update varies depending on which device you’re updating. Once the iPhone 3.1 firmware update is done downloading it will start the installation process on your iPhone.
iPhone 3.1.2 Download Links
If you are having trouble downloading the iPhone 3.1.2 firmware through the iTunes Application then you can directly download the appropriate firmware for your device using the below links:
- iPhone 3.1.2 download (iPhone1,1_3.1.2_7D11_Restore.ipsw, 241 MB)
- iPhone 3G 3.1.2 download (iPhone1,2_3.1.2_7D11_Restore.ipsw, 242 MB)
- iPhone 3GS 3.1 download (iPhone2,1_3.1.2_7D11_Restore.ipsw, 306 MB)
Note: Don’t use Safari to download iPhone 3.1.2 IPSW files, instead use another browser. Safari downloads this as a .ZIP and iTunes is not able to recognize the firmware that way.
iPhone 3.1.2 Jailbreaking information
You can jailbreak your iPhone, iPhone 3G, iPhone 3GS, or iPod Touch on iPhone 3.1.2. I will update this post once an iPhone 3.1.2 jailbreak is out.
Tags: iPhone 3.1.2, iPhone 3G 3.1.2, iPhone 3G S, iPhone 3GS 3.1.2, iPod Touch 3.1.2, itunes

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Where are the 3xxx IPSW files for the iPod Touch 2nd Generation? The only ones I can find are for the iPhones.
you can download in safari. just rename the extension from .zip to .ipsw and it works just fine.
after download this files how will i upload it to my iphone??can you help please….
hi there , i need a little help about updates , how can i update my iphone 3g S unlock & jailbreak 3.0,1 to 3.1.2 ,also after download is complete should i jailbreak it again , i need a little advice pls thanx for u time , happy holidays !!
So if i jailbreak my iphone, and there’s an update from apple, i update it with your link, right? Just to make sure:D
now if i already have the 3.1.2, and i wanna jailbreak it, i use blackra1n? What about purplera1n? Is purplera1n untethered?
i downloaded and installed this update and now none of my apps will open!
All applications downloaded after upgrading to 3.1.2
i had upgrade my iphone 2g frm 2.2.1 to 3.0….and now i want to upgrade it to3.2.1…..hw can i do it
i downloaded the 3gs version of the iphone software because i had trouble doing it from itunes. i now have the large file but how do i get it in the iphone? when i try to open the download itunes wants to download it again
Connect the Iphone and open I tunes. If phone is in recovery mode, hold both buttons for 10 secs and then release the power button.
Device should pop up in I tunes.
Before clicking restore hold the shift button on the keyboard. A window should open. Go to where you saved file and then restore. I’m no expert but i hope this helps.
Fredo
my iphone lose the network automaticaly .. and i cant fix that.. can anyone tell me what to do , to fix this problem , plzz
I believe you can simply restore your network settings.
Go to Settings/General/Reset/Reset Network Setting.
You will not loose any apps but will have to re-enter passwords for Wi-Fi Networks previously saved.
Hope this helps.
Fredo
could you tell me how to update to 3.1.2 with the do and donts, i’m presently with 2.2 firmware
oh ya . . just download the 3.1.2 firmware from the following site . . . http://www.quickpwn.com/2009/10/iphone-3-1-2-itunes-update.html and . . open your itunes then connect ur itouch . . and here click the update button with shift key from your keyboard . . then locate the update file . . . DONE !
Enjoy !
What happens to you guys who accidentally upgrade is that you click check for updates in your iTunes and you leave the phone plugged in. If you do upgrade this way “always, always, always, always” unplug your phone form the computer when starting the upgrade download and don’t plug it in until you restart iTunes. This will prevent accidental upgrades as iTunes will do it automatically this way. It happened to me once, thank god someone came out with an unlock for that firmware version I upgraded too. From now on I am using Custom IPSW upgrades.
Hi Everyone,
I backed up my iPhone 3G on my WinXP PC approx 3 days ago, because I was worried that my Categories app might crash things somehow.
Then my Categories app crashed things somehow. I’m not able to see the contents of any of those folders.
It looks like I’m going to have to restore, but I don’t know whether I ought to upgrade and Blackra1n again, or if I can restore without upgrading from 3.1.2, or what. I’m a little confused, and I feel like I could do something terribly unnecessary if I don’t ask someone — so here I am.
Thanks in advance for any help/advice.
-Seamus
Please assist. I have a jailbroken and unlocked iPhone3G. How can I upgrade the firmware to 3.12 without affeting the jailbreak and unlock.
which itunes version to update 3.1.2
i have itunes 3.1.3 so i cant jailbreak it can i go back from 3.1.3 to 3.1.2 if so how
when i try to restore it itunes says it can’t be restored because theres a problem 1015. how do i fix that?
I downloaded 3.1.2 – at end of installation, got an error message, cannot update Iphone now. Phone would not work, message came through Itunes, you must restore this phone, went with restore, restored to factory settins, all data lost, did a restore from back up, calandar and Contacts, and pictures restored, but lost all applications.
How bout a fix on Wifi Dropping on the 3gs not sure if anyone else is having the same problem but i find that i lose bars and sometimes signal even if i am less then a foot away from my linksys 610 router.
I’m having problems accessing the .dmg’s. The keep asking for a password. What’s that about? What is the password?