iOS 4.2.8 Firmware is now available for download on all iPhone 4 Verizon CDMA phones . Follow the method below to install 4.2.8 firmware on your device; Alternatively you can download the 4.2.8 ipsw files on your computer to restore and upgrade later with jailbreak tools .
- Reduces the size of the iOS Tracking Data cache
- No longer backs the data to iTunes
- Deletes the database entirely when Location Services is turned off
Upgrade to iOS 4.2.8 via iTunes :
Connect your device with the USB cable and launch iTunes 10.2.2 on your computer . Select Help in the top menu bar and click on “Check for Updates” as shown in the image below .
iTunes will automatically detect your device and show the available update . Click on Download and Update to proceed .
Direct Download Links – iOS 4.2.8 IPSW : iOS 4.2.8 ipsw files here