Finally iPhone OS 3.1 is releaseĀ you can download the Lates iPhone OS 3.1 free via iTunes 9. OS 3.1 includes video editing that will allow you to keep a copy of your original film clip while saving an edited one. If you select and hold an application, as it wiggles, the phone itself will vibrate and lastly but not functioning, MMS buttons. The other features include a faster boot time for the iPhone, updated modem firmware to 5.08.01, update AT&T profile to 4.2, and a couple of SDK/development functions that should please developers.

So What are you waitng Upgrade your device to OS 3.1 from iTunes 9. or Download from these Link:-
- iPhone 3.1 download (iPhone1,1_3.1_7C144_Restore.ipsw, 241 MB)
- iPhone 3G 3.1 download (iPhone1,2_3.1_7C144_Restore.ipsw, 242 MB)
- iPhone 3GS 3.1 download (iPhone2,1_3.1_7C144_Restore.ipsw, 306 MB)

Windows 7 Tip: 





dear team, the file is downloaded as a zip filed how do i pull out the firmware
@raweya
Rename it to .ipsw
have downloaded iPhone1,2_3.1_7C144_Restore.ipsw, 242 MB) file, how do i update my iphone. after double click, it open up iTunes and does nothing
@ Sudan
If you have the Unlocked and Jailbreak Iphone, than don,t try to upgrade it, coz it will lock your Phone, and you can,t unlock it after.
BTW to install the new Firmware click Shift+restore button in Itunes and select the new Firmware.
NOTE:- Don,t update if you have Unlocked and Jailbreak iPhone
hi, i happened to upgrade without reading the warnings,
is there anything i can do rite now?
Can you tell me more detail about how you upgrade iPhone?
Hi! I have a zip file(iPhone1,1_3.1_7C144_Restore.zip) and I rename it to .ipsw, but it still a zip file. What can i do?
@Bou
let me know Which Operation System you have
OS 1.1.4 and What’s Modem Firmware? Do i need to upgrade it too?
Hi! Now i got iPhone1,1_3.1_7C144_Restore.ipsw, but i don’t know how to upgrade it. Can u tell me more detail how to upgrade it?
Hi! I got problem, when i finished upgrade my iphone. I can’t unlock my phone, why? Is it Jailbreak iphone? What should i do?
please guide me how to use iphone . i updated the software in through itunes but mobile is showing noyhing,even my sim is also not working.please please guide me the proper way to install firm ware ,OS and applicaions for iphone
dear team i recently purchased an iphone in china a 3g 16g i wana download mxit and opera bt they not working pls help me out what do i do help and my itunes is not syncing my iphone whats the nxt step pls
Hi! I have a zip file(iPhone1,1_3.1_7C144_Restore.zip) and I rename it to .ipsw, but it still a zip file. What can i do?
I have a 1 st generation iPhone with 1.1.4 Firmware.
I want to upgrade to Firmware 3.1 can I possibly just upgrade my itunes to the latest version and have the OS 3.1 downloaded as well so I could jailbreak it?
I hope I could get a step by step instruction on how I could possibly accomplish it myself.
Thank you, your immediate response is highly appreciated.
Don Buenaventura
how do i update my iphone 3g after having already downloaded the compressed file?
I have renamed the download but it’s still in the .zip format…iTunes can’t read it from the folder it’s in when i press shift+restore. What to do?
I am using iPhone OS 3.0. Can you tell me more detail about how to upgrade iPhone OS 3.1. And can you tell me how to use iPhone as Modem to my Laptop
( Windows 7 )