In addition to iOS 4.3.2 for iOS devices ( such as iPhone 4, iPhone 3GS, iPad 2, iPad and iPod Touch 4G/3G), iOS 4.2.7 for CDMA iPhone 4 is also now available for download for Verizon users. The previous major update for Verizon iPhone was iOS 4.2.6, announced in February, 2011.
In order to update your Verizon iPhone 4 to iOS 4.2.7, connect your iPhone to computer through a USB and launch iTunes 10.2.1. You will be prompted showing a dialog. On the dialog box, click ‘Download and Update’ for (Windows) and ‘Download and Install’ for Mac to install iOS 4.2.7 onto your Verizon iPhone 4.
Download iOS 4.2.7 for Verizon iPhone 4