Apple released its latest iOS 8.1.3 update to address a range of bug and issues since the release of iOS 8. However, some bugs like installation issues, poor battery life and app issues remain and here are the possible fixes.
Many iPhone 6 and 6 Plus users experienced installation issues where the update fails to install or a failed installation after the download. The iPhone needs to be restarted by holding the power button and the home button at the same time. Either the latest update gets notified again in the Settings or the updates starts to install again.
The issue is mainly caused by older app version and is mostly solved by the third-party app developers if the issue is reported. However, it is advisable to turn automatic Updates On in Settings to keep apps updated at regular intervals.
iPhone users can monitor the power usage of apps by accessing Settings > General > Usage > Battery Usage and limit apps that drain battery when not connected to the power supply. Idle apps which are not used for a long time can be removed to increase battery life. For severe battery drain issues, the app settings need to be restored by accessing Settings > General > Reset > Reset All Settings. The setting returns to default after the passcode is entered.
An iPhone 6 user posted that the device was facing heating and freezing issues and the possible fixes are either a device reset or restoring the OS via restore mode. iOS 7 which was recently reported to be a table OS among iOS versions can be installed after a jailbreak though Apple does not support the method.
Other battery life fixes include deactivating auto-brightness mode, iCloud keychain and background refresh that solves the issues for most iPhone and iPhone 6 Plus users.