Iphone stuck hi i accidently upgraded my unlocked iphone from 1.1.2 to 1.1.3 it was then things started to go wrong so i decided to downgrade to 1.1.1 and then upgrade back to 1.1.2 after doing this my iphone got stuck it now shows an apple logo that goes on and off i have tried to reboot it but the computer dosent recognise the phone any help on this thanks chris.

Hi Karin, to best of my knowledge you cannot update a 3G much beyond iOS 4.2.1 or so. I think even the 4G does not allow newest iOS 8.1.2 - the 4S does.
Even if you mean Mac OS the newest version is 10.10 - 11.1 may be in beta, but not anything that would effect your 3G.

Good luck!

You can get your iPhone unlocked from Network lock using Remote unlocking method. Which is the safe and secure method to unlock iPhone. You can get this service at low cost from SimpleUnlocking.com here you need to specify your country, Network name to which it is locked, IMEI number of your iPhone. Here they unlock your iPhone using latest versions of iTunes. This is permanent unlocking solution iPhone. Both upgrading and downgrading will not lock your iPhone again.

Hi Dinesh,
Please visit this site where there is step by step procedure on how to unlock your device. Hope it helps.

How To Unlock iPhone 5 5S Expert Advice get expert opinions on factory...

as arule you cant downgrade only upgrade on i-phones.

restore phone and reinstall software

Updating to official 3.1.3 will lose your unlock, possibly forever.
You can't downgrade. Lesson is never upgrade the iPhone without checking that the unlock works on the new version.

Your stuck with a locked iphone

my iphone touch pad in not working..

If you accidentally upgraded to 1.1.3, then downgraded, your phone is going to be in a funky state. Here's the fix:

Restore your phone to 1.1.3 to get the latest features
Download ziphone from http://www.ziphone.org/
run ziphone -j at the command line (with your phone plugged in and itunes shutdown)

Now you'll have a working, jailbroken phone, at v1.1.3

restore the phone to 1.1.3
ensure it is in working order
download ziphone http://www.ziphone.org/
there are several baseband upgrade\downgrade options (research these)
run ziphone -j to jailbreak your phone
plug into itunes to activate

downgrade with 1.1.1 version