iphone 4 has stopped working HELP!

Have you tried a hard reset? Hold Sleep and Home buttons down simultaneously for about 8 seconds and see if the phone resets.

I have a similar problem. If I leave the phone alone and locked for a period of time, when I push the home button, nothing happens. You call, nothing happens. Text, nothing.
I tried holding down home and power, nothing happens.
Connected to itunes, it says the phone is in recovery mode. Hold down home and power again until the apple logo comes up, and everything is normal. Until you lock it and leave it alone.
Just now tried not even 10 minutes after locking it from the above procedure, and it is doing it again.

I've found that holding the home and power button for 10 seconds, releaseing, and then holding them again for 10 seconds finally gets it to reboot, and it comes up normal. But after locking again, same problem.

I'm restoring from a fresh copy of itunes, and fresh copy of iOS4. Hope that helps.

Anyone else having this issue?

Hold down power and the home button for 10 seconds and the apple logo should come up, and that will at least get you to a point where you can load software.
Past that, I still dont know why it is happening.

Be careful though, once you lock it, and leave it alone for 10 minutes or so, it will probably stop responding again.

Message was edited by: lazer310

My iphone locked up tried a restore but i keep getting error 1004 every time tried reinstalling itunes dfu mode nothing error 1004 every time anybody able to do a restore

After doing a fresh restore from a newly downloaded copy of iTunes, the phone is still locking then not responding. What good is a phone that locks and doesn't come back on?!
Serious problem here.

it only locked up once in app and lock up the phone i tried to restore but never completes just gets error 1004 right at the end

same problem here, error 1004 everytime i try to restore.. frustrating 😟

Still having this issue. And it seems to happen at random. I thought it I let the phone lock itself after one minute, it would respond when I pushed the home button. It did not.
I did another fresh restore, still happening. I think I'm going to take it back.

Mine doesn't work period. It did the same thing the first post said about just shutting off. The reset technique does not work as I still have a black screen. iTunes doesn't recognize it and the apple logo doesn't come up. I thought I was the only one.

same issue 1004!

I had this problem this morning just after I picked my phone up from my local Apple store. It seemed to be working fine and then just died. I couldn't get it to respond no matter what I did. I went right back to the Apple store and they couldn't get it to respond either. They swapped it out for a new one. So I'm on my second iPhone 4 in less than 12 hours.
So far so good with phone #2!

I am having the same issue. The iphone stops responding and I have to hard reboot the device. THis has happened 4 times since I picked up the device. Very frustrating

im getting the same error 1004 my phone is stuck in recovery mode, anyway find out anything on how to fix it?