Error 4000: Installing iOS 7 Renders iPhone 4S Useless - Frozen Boot Screen at 0%

I am having this exact problem on my iphone 4s which has never been jailbroken.

Firstly I got error 4000,

Then after trying again my phone says connect to itunes

and 'preparing iphone for restore' get stuck after the firmware has been extracted.

I am really worried now, I have looked after this phone and it has been working perfectly for 2 years and now I try updating to Ios 7 this happens. Really upset as my phone is my life!

Any suugestions? is my phone totally useless now? :-(

i had this error too after i quit latest itunes cause updating to ios7 seems stuck.

maybe apple servers are not reachable? i am not sure but i managed to update to ios 7 later.

i did my update on windows 8. Unplugged all usb cables and used another usb port. Set my phone in recovery mode. Make sure the Apple Mobile device usb driver is showing in device manager under usb devices (http://support.apple.com/kb/TS1538)

Afterwards i could install ios7 through itunes. I was scared as **** too before, thought i lost my phone.

Good luck!!!!

OK guys and girls, I have fixed mine...

Well it's back on ios 6.1.3

What I did was used a program called iReb and clicked on iphone 4 (there was no option for iphone 4s)

And then I clicked 'Set auto boot true' and then my phonme rebooted and was runnin what I had installed before ios 6.1.3

Later today I am going to try to update to ios7 over wifi with the iphone and i will not be using itunes!

I guess there is a bug with this new itunes and new ios7 which is happening with a lot of us.

I am so happy my phone is back because after a sleepless night I thought it was fried!

I wouldn't go to apple at this time as they're probably too busy and not bothered. Try ireb fix auto boot first.

;-)

How did it go Riz?

I'm about to try updating again to ios 7 with my phone and not via iTunes. Chris

I also successfully downloaded ios7 via wifi, the only known problem is iTunes Store won't open - but I can live with that!

I ran into this problem and come across this article - having already tried most of the mentioned things I wondered what it could be...

I ran iTunes as administrator (hold down shift key and right click on iTunes.exe - select "Run as administrator")

You might get prompted by UAC, just click yes.

Then - success!

Cheers

IREB! Great idea, perfect solution. Fixed us right up! Thanks so much for the help.

I had the same problem with iphone 5. I downloaded itunes on another computer, connected, upgraded and problem was fixed.

Here is my Way to fix this 🙂

Steps:

1. Put in DFU
2. Exit everything (Skype ,Steam etc...)
3. Change USB Port
4. Try and Restore

HOW TO DFU:

1. Hold Power & Home Button for about 15sec

2. Release Power keep holding Home button

3. Once it has connected (iPhone will have a black sceen) ,iTunes will detect the iPhone and say u must restore it.

4.Release Home Button

Why Exit Everything:

- Because applications like Skype , Steam , Messenger and other run in background and some of them May or May Not cause problems while restoring and you will get Errors in the process ( Confirmed )
Change USB Port:
- I don't know how to answer you this exept with this "A New Beginning" ( Just In Case )
Try And Restore:
- After you restore from iTunes your iPhone will:
1. Lose All Data (Photos, Contacts, Apps, Music)

2. Get Updated To The Latest iOS (Those who Jailbreak.. Check If That iOS is Jailbreakable)

Make sure that you backup your Data before this , Just reminding those who have 3GS .. iOS 6.1.6 is NOT Jailbreakable Yet! , however iOS 7.0.6 IS 🙂

Hope This Helps 🙂

I've just had the same error 4000, updating an iPod touch from IOS7 to IOS9. ITunes on Windows 7. Solved when I changed USB port. Had it plugged in to a USB 3 hub off a USB 3 port, so I switched to USB 2 port, no hub, and the update then continued without error. No loss of data.