iOS4 Crashed my iPhone?

Try Recovery and/or DFU Mode... http://www.timog.com/forum/showthread.php?t=130265

Reset your phone & try again. Make sure your internet connection is good, no firewalls or anti-virus running:

Press the sleep/wake button & home button at the same time, keep pressing until you(hopefully see the Apple logo or the phone reboots, then release.

As wjosten posted earlier, make sure your anit-virus, firewall, spyware, etc are temporarily disabled.

I believe I've tried ALL that & still can't get my phone to work 😟 I'm so frustrated with this....

I tried updating my 3G to 4.0 OS and it has also crashed my phone!
I can get my phone to the recovery mode and it will attempt to restore but all it will do is stay on the screen " preparing to restore iphone" and then my computer will not recognize the device and in the end i get an error either 1603 or 1604

I've tried two computers and same thing =(

helpppppp

tried it in the DFU mode as well but once the phone goes with the apple logo and the status bar the computer no longer recognizes the device ( both computers in the house)

same for me

any solution anyone?

This has happened to me too when I tried to update it; the silver apple symbol, the loading bar underneath filling up to 1/3, crashing, and starting all over again.

I noticed the reason why itunes is unable to detect your phone is because when the phone restarts itself when the loading bar reaches a certain point, hence disconnecting itself. The only time itunes detects the phone is when the loading bar is in the process of filling. However, the phone doesn't give itunes enough time to prep for the restore and restarts itself.

I have the 2nd gen iPhone and I updated my phone overnight because of the long backup process. I awoke up 6-7 later to find it wasn't done. I found it just doing that circle "thinking/loading" sign spinning over and over. I disconnected it and took it to class thinking it'll finish by then. 3 hours later, it's still spinning. I did a hard reboot by holding home and the power button. When I turned it on again was when the apple symbol-loading bar-crash started to happen.

I tried the Try Recovery and/or DFU Mode also; a person walked me through doing it when I called 1800myiphone. It help fixed the apple-loading bar-crash...BUT and it cause a new problem. When the phones goes into sleep mode it completely turns off. The only way to turn it on is by hold both the home and power button. I did notice that if you leave it charging it won't turn off completely. But if you unplug it and it goes to sleep, it turns off. In fact, if you tap the power button and home button a few times it'll turn it off that way too.

I then tried Recovery mode 4 times after without backing up or syncing it but it still turns off when it goes to sleep.

Next I tried "Reset All Settings" (may not be exactly what it says but something like it). All that did was display the circle "thinking/loading" sign spinning over and over. I left it for 6 hours and it didn't stop.

Next I took it to the Apple store. All they did was what the person at 1800myiphone told me to do which didn't help it at all. Then they told me you're out of warranty and my only option was to buy another one for $199.99.

My only guess as to what caused it is that I updated it on my laptop and maybe it going into sleep mode when I left it updating caused some problems..? I don't know. Either way, this blows. If anyone knows how to fix this please share...

I'm having the same issue with my 3GS crashing after trying to update to 4.0.1. I ended up restoring to what I thought was my recent backup, but it did not take (I think). I have my pictures, and most of my apps, but my contacts and notes are gone! Am I doing something wrong? I have another older backup that I can use, but I don't want to lose it since this one did not go so well. Thanks!