Help: Cannot upgrade to iOS4

[Yoh]

I am currently using iphone 3G with 3.1.3 version

I downloaded itunes 9.2 and iOS4. When i go to update it in itunes, it asks for me to backup my data, and i want to... then the bar for backing up comes up... realllly slowly. Then suddenly it shoots to like 99%, then a few minutes and it says that it cannot connect to the server and then the backup is aborted.

what should i do?

 

[bamafever09]

I am currently using iphone 3G with 3.1.3 version

I downloaded itunes 9.2 and iOS4. When i go to update it in itunes, it asks for me to backup my data, and i want to... then the bar for backing up comes up... realllly slowly. Then suddenly it shoots to like 99%, then a few minutes and it says that it cannot connect to the server and then the backup is aborted.

what should i do?

if i were u i wouldnt do it. i put ios4 on my moms 3g and it runs like crap now... just a warning haha

 

[Yoh]

i need to unlock it... and i dont think i can unlock 3.1.3.... but theres a way to unlock 4 already... unless theres a way to unlock 3.1.3, which I will greatly appreciate... then i need to do this

heres the msg

 

[SFStateStudent]

Go to the appropriate FORUM = iPhone HACKS

 

[Figbash Acrobat]

if i were u i wouldnt do it. i put ios4 on my moms 3g and it runs like crap now... just a warning haha

+1
Don't do it! I upgraded my 3G when 4.0 came out and it was awful...lagged, dragged, bugs, etc. I just downgraded back to 3.1.3 and feel like I actually upgraded, it's so much more responsive. I almost forgot how the phone should work. Much better now/again. So, I can now (soon) move up to iPhone 4 and hand down my 3G to my girlfriend with a clean conscious.

 

[Yoh]

this is not hacks or anything.... i just need to update my iphone... and pls dont say dont do it, since im trying to do it...

so, why is that error occurring? how to fix...

 

[Jomni]

You could do an itunes uninstall/re-install, etc, etc,

But as most have said ios4 on the 3G will depress you!

 

[chaleyer]

+ another one. Am just going through a downgrade on my 3G at this moment because of how slow it turned out to be. Fingers crossed that it goes well.
As to unlocking the handset.. I am with Optus in Australia. I called them six weeks ago to prep for using foreign sims in the UK, France and Italy when travelling in September, and they sms'd me a code a code a couple of days later; backup/restore in iTunes and I had an unlocked 3G on 3.1.3. Hopefully AT&T will do the same for you.
Now waiting for the 4 to come to Oz...maybe August??

 

[FSUSem1noles]

Did you change your hosts file? If you did you need to change it back to the original and try again...

 

[maflynn]

Is this a stock iPhone or has it been JB'd/unlocked? If its the former, then take it to an apple store and have them resolve it. If its the latter then you'll probably need to undo what ever action you undertook.

 

[bowlerman625]

I would not put iOS4 on a 3G phone.