Apple has already released iOS 4.3.2 for iPhone 4, iPhone 3GS, iPad 1, iPad 2, iPhone Touch 3G and iPod Touch 4G. Beside this Apple has also released another firmware update that is iOS 4.2.7 specifically released for Verizon iPhone 4. Build number is 8E303. Previous firmware for CDMA Verizon iPhone 4 was iOS 4.2.6.
To update to iOS 4.2.7, all you need to do is to connect your iPhone 4 with your computer via USB and start iTunes 10.2.1. You should now see a message prompt. Simply click on “Download and Install” (Mac OS X) or “Download and Update” (Windows) button to get on to the new firmware 4.2.7.
Download iOS 4.2.7 for Verizon iPhone 4.