Depending on where the compass is located on the surface of the Earth the angle between true north and magnetic north, called magnetic declination can vary widely with geographic location. The local magnetic declination is given on most maps, to allow the map to be oriented with a compass parallel to true north.
2] KB2939087 recommends in case you are unable to install the Windows 8.1 Update package KB2919355 via Windows Update, then you should download and install the package manually. 3] If you receive Error 0x80071a91 when installing KB2919355 on Windows 8.1, Microsoft has released a patch to fix this issue.t should therefore first be installed on your system before your attempt to install Windows 8.1 Update or KB2919355. Go get it here if your computer does not have it. 1] If your Windows 8.1 Update has failed to installed, you need to clean up the corrupted installation.
Step 1: Step 2: Select âiOS 8.0.1.â Because it is over 1GB, it is probably towards the top of your list. Step 3: Tap Delete Update, and tap Delete Update again to confirm. This will effectively remove the downloaded update from your device and prevent you from accidentally installing it.1  Share:2  Tweet.his sort of worked. It deleted the update, but the settings app still shows a â1â in red. When I open the app, the software update entry shows a one as well. When I tap software update, it searches and informs me that I have iOS 8.0 and my software is up to date. But the â1â doesnât go away.