Note: IOS8 Beta5 cannot be upgraded on the phone now because IOS8 is not yet out of the official version and is now a beta version, so if you want to upgrade you will need to download iOS8 BETA5 system installation files on the Internet and then use itunes to upgrade.
At the same time, this upgrade will remove the data from the iphone, so it's best to back up the data before we upgrade IOS8 Beta5.
IPad 4 upgrade IOS8 BETA5 Tutorial
1. We go to Baidu to search the relevant version, and then download to the computer.
2. The ipad 4 is now connected to the computer to open itunes. (It's best to ensure that itunes is the latest version)
3. Wait for itunes to connect to the computer after the success we hold down Shift (up button) + left mouse button click on itunes Update restore function (figure)
4. Then know the open window we choose to download the good installation file and then click-click Update-Wait for itunes to run.
5. In the end, just wait on it, but the system is ready to be activated OH.