Download iPhone OS 4.0 beta firmware

Apple has announced the major firmware iPhone OS 4.0. The iPhone OS 4.0 comes with more than 100 new features for the user. Top features include Multitasking, Folders, Enhanced Mail.app, iBooks, Enterprise, Game Center, and iAd. Checkout the complete list of iPhone Firmware 4.0 features.

Now all of you would be looking for a way to download iPhone firmware 4.0.

download iphone os 4.0 Apple has made available iPhone OS 4 beta to registered developers only. Registered developers can download iPhone OS 4.0 along with SDK 4.0 from the iPhone dev center. But a normal user will be able to download iPhone OS 4.0 later this summer.

If you cannot wait that long and want to try iPhone firmware right now, then you’re at the right place. You can download iPhone firmware 4.0 beta from the links below:

IMPORTANT: you’ll need your UDID on a dev’s account in order to activate the beta. Links will be live as soon as they are uploaded.


Download iPhone OS 4.0 Beta













If the Link is Dead or not working(Since the site is being overloaded) just let me know and I'll re-activate it.


Download iPhone OS 4.0 beta (iPhone 3GS)

iPhone2,1_4.0_8A230m_Restore.ipsw

iphone_os_4_beta_iphone_3GS_8a230m.dmg (364 MB)

Download iPhone OS 4.0 beta (Phone 3G)

iPhone1,2_4.0_8A230m_Restore.ipsw

iphone_os_4_beta_iphone_3g_8a230m.dmg

Download iPhone OS 4.0 beta (iPod touch 3g)

iPod3,1_4.0_8A230m_Restore.ipsw

iphone_os_4_beta_ipod_touch_3rd_generation_8a230m.dmg (354 MB)

Download iPhone OS 4.0 beta (iPod touch 2g)

iPod2,1_4.0_8A230m_Restore.ipsw

iphone_os_4_beta_ipod_touch_2nd_generation_8a230m.dmg (306 MB)


iPhone firmware 4.0 will be available to general public in summer when the iPhone 4G aka iPhone HD will hit the shelves. iPad users need to wait till Fall 2010 to install iPhone OS 4.0 on to iPad.

Note: Only iPhone 3GS and iPod Touch 3G are fully compatible with iPhone OS 4.0. Multitasking and some other features won’t work on iPhone 3G or iPod Touch 2G. iPhone 1G and iPod Touch 1G aren’t supported with iPhone OS 4 at all.


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Getting an iPhone’s UUID number for ad-hoc app deployment

Deploying iPhone applications to testers involves creating an ad-hoc distribution package that they can install through iTunes, rather than the App Store. To do this, you need to get each iPhone’s identifier or UUID code.

There are two steps to this – the first is to get your guinea pig to connect their iPhone and fire up iTunes. Then on the iPhone Summary page, they’ll see their phone’s serial number, like this:









The serial number isn’t the one you’re after – clicking on the Serial Number will flip the display so that it shows the eleventy-billion digit UUID, like this:







Thankfully, you can copy the number even though it looks as if you can’t select it on the screen – just hover the mouse pointer over the number, and Cmd-C / Crtl-C to copy the number onto the clipboard.