I have just read that apple may be releasing a new update for the iPhone.
If you have unblocked yours, then DO NOT update. It may cause your iPhone to brick (or lock up).
Apparantly there will be a fix for this update sometime soon, so wait for it rather than taking a risk and having an expensive and useless phone.
You do not have to update or use any that are sent to you. Apple don't enforce updates.
So again, don't risk it and wait. !!!!!!
The 1.1.1 firmware revision that bricked some unlocked iPhones a couple months ago had to do with buggy unlocking software. Versions of the 'AnySim' package prior to 1.1 corrupted the SecZone which would cause the phone to turn into an expensive iBrick when the 1.1.1 firmware was applied. I don't believe phones that were IPSF or hardware unlocked were affected. Regardless..if you have an unlocked iPhone in the US, definitely wait until the iPhone Dev teams figure it out. If you are like most people and have a locked or 'virgin' iPhone, you shouldn't have any problems with upgrading.
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Try to restart the iPhone: Press and hold both power button and home button together until iPhone turns off and starts again (Apple logo appear on white screen). Release both buttons when you see the Apple logo. Let the phone boot up. It should be ok. If not,
You can update/restore your iPhone using iTunes installed on a Mac or Windows computer.
Steps to follow:
1. Please turn off the phone.
2. Press and hold the home button and connect the USB charging cable to your phone and to Mac/PC running iTunes.
3. When iTunes connect logo appear on iPhone screen, release the home button.
4. iTunes will detect your phone and prompt you to update/restore your phone.
5. Click on update.
6. Let iTunes download and install iOS update on your phone. It will prompt you once finished.
If the update is failed, iTunes will prompt you to restore (this process will erase all data from your iPhone), select restore and wait to finish.
After restore process is done, you may restore your iPhone backup (if you have backed up your iPhone before).
There are some security fixes in this update along with some new features such as Night Shift so it is recommended to update your devices. You can learn more about what the update contains by visiting:
Thy restoring the latest backup you made on your computer, with iTunes. The try to update again.
You also can ask for support on this page. (most is free) They even helped me in the Apple store (genius bar) for free with an 3 year old iPhone 4 iPhone Apple Support
Update your iPhone by Settings > General > Software Update.
Update your Carrier setting by Settings > General > About and If an update is available, a prompt will appear. If need more help on message problem then read http://support.apple.com/kb/TS2755 and still require guidance on any iPhone problem follow Mac Support .
ur iphone is not starting it is the problem of ur previous ios tht u r using u have to update ur iphone it would worlk normally
for updating iphone
put ur cell phone into recovery mode
than it would be connected to itunes
go to summery pannel and restore and update iphone
Here is simple guide for those Users who will be first time upgrading their iPhone 2.2 or 2.2.1 to firmware 3.0. The guide is applicable for Upgrading iPhone 2G/3G 2.2 or 2.2.1 to OS 3.0 and also for iPod Touch. Please note in order to upgrade iPhone to firmware 3.0 you must have installed iTunes 8.2.
How to Upgrade iPhone 3G 2.2/2.1 to 3.0 firmware
1. Connect your iPhone 3G to computer
2. Open iTunes 8.2
3. Select your iPhone under Devices in the Source List on the left.
4. In the iPhone Summary pane, click Check for Update.
5. Click Download and Install. Do not disconnect your iPhone until the update has finished
That’s it, Once update is finished your will have iPhone 3G running latest firmware 3.0.
Press and hold Sleep/Wake and Home until the iPhone resets. When the Apple logo appears release Sleep/Wake, but do not release Home until you see the prompt to connect the iPhone to iTunes.
to restore the iPhone’s firmware, all your settings, all your media, and all your Apps. I don't recommend you to do the offered backup, I've seen a few things more reliable then this backup, to say the least...
To avoid the screen of death, do not update all the features with the "Update All" feature, updates your features one at a time, avoid performing other tasks while updating your iPhone.
you cannot log on itunes through the unlocked phone itself,to download music.instead,you must download itunes to your mac or windows vista pc and sync phone through pc to download music. if you update iphone with itunes through the phone it will auto update firmware on the phone ,and your iphone will work no more. h A ck T & T USER