sa mga hindi pa nag-a-upgrade, you may want to read this first:

Read These 6 Warnings Before You Update Your iPhone or iPad to iOS 8

Apple’s iOS 8, the latest version of the operating system for iPhone, iPad, and iPod, is now available. It’s pretty darn slick, and it’s what everyone who orders a new iPhone 6 will get when those devices start arriving on Friday. But the upgrade is also available for existing Apple devices. Should you upgrade right now?

If your answer is an instinctive, “Heck, yeah; I’m in!” then read our guide and get going.
https://www.yahoo.com/tech/read-thes...760524429.html