page 3 of 3
Installing iOS 9
If the aforementioned bugs haven’t scared you off, let’s look at how to install iOS 9. Keep in mind, this is a “.0” release. Do not install this on a mission critical device. If you require a working iOS device for work, school or life, wait for the next release and research it before upgrading.
The iOS 9 update size varies depending on your device. It was only 740 MB on my iPad 2. At most, iOS 9 will take up 1.3 GB of free space. Make sure to leave 1 GB of free space available to keep your device running quickly and smoothly. The extra free space is needed for virtual memory swap space.
Before you install, make sure to backup any critical information. You can do this using iTunes or iCloud backups. For more information on best practices for upgrading iOS, please read “How to Upgrade iOS“.
You can start the iOS 9 upgrade by tapping Settings > General > Software Update. Next, tap on Download and Install. You are presented with the legal agreements. Read and accept the legal agreements to proceed. iOS 9 will begin downloading and installation will start automatically if you leave your device unattended.
The installation process took about 90 minutes on my iPad 2. This is because I upgraded on the first day and Apple’s servers were overwhelmed. The actual download took a long time. The install is also a lengthy process on older devices. Unlike previous iOS releases, the installation process seems to re-indexing Spotlight before iOS 9 is up and running. I didn’t experience the abnormally slow performance that occurs after most major iOS updates. Typically, iOS updates run a re-indexing process for Spotlight and iCloud syncs after the installation process, resulting in slow performance for a few hours.
After the installation process, users are greeted with a multi-lingual welcome. There is a small, one-time configuration process. Users are prompted to turn on Location Services, create a Passcode, login to iCloud and activate sending data to Apple. I don’t recommend the latter, unless you have a fast internet connection. I have found that sending data to Apple can slow down a device significantly. They rely on this data to fix defects. If you have a fast device and Internet connection, go for it.
Make sure to turn off Bluetooth after upgrading, if you don’t use it. iOS updates always turn on Bluetooth. They should persist the Bluetooth setting between updates. I think this is why so many people report poor battery life after upgrading iOS.
iOS 9: Worth Upgrading
iOS 9 is a “.0” release — the first version of a major operating system. Despite notorious problems, this is one of the best initial releases in years. It is still a “.0” release and will have more defects than upcoming iOS 9 releases. I would only recommend iOS 9 to people with nothing to lose. If you upgrade, expect app crashes, buggy browsers and an even worse Apple Music experience. At worst, it could render your device unusable. If you absolutely need your device, do not upgrade to iOS 9. The defects are a little disappointing, given the smaller scope of changes. iOS 9 is more robust and stable than previous iOS major releases, but it is still a buggy “.0” release.