Why did my iPhone 6 just shut off?

FIX 1: Do a Hard Reset

Though it may erase everything in your iPhone 6, a hard reset is the go-to solution for most Apple device problems. That includes random power downs.

To perform a hard reset:

• Press and hold the sleep/wake button and the Home button simultaneously

• Keep holding the buttons until you see the Apple logo

FIX 2: Uninstall recent apps that causes the problem

Sometimes, the reason why the phone it shutting down on its own is because some application. There are many apps there that are poorly coded and may cause all kinds of issues. It is advisable to delete the apps you installed recently, around the time when the issue appeared.

To delete an app:

• Find its icon in your homescreen

• Press and hold it

• Tap X when it shows up

• Next, tap Delete

FIX 3: Calibrate your battery

You need to let your device drain completely until it shuts off. Then, let it charge to 100%. This solved the problem for many iPhone users, so give it a try.

FIX 4: Update iOS

This may be the software issue, and you can solve it with the simple iOS update.

To see if your device needs the update:

• Go to Settings -> General

• Choose Software Update

• If there is an option Download and install, tap on it

FIX 5: Restore

Another thing you may try is to restore your iPhone as new using iTunes. Make sure that you have the latest version of iTunes installed and also, backup the data you have on your iPhone. Follow the steps below:

• Open iTunes

• Connect your device to your computer using the cable that came with it

• In iTunes, select your device

• Click Restore in the Summary panel

• To confirm your action click Restore

• The iTunes software will erase your iPhone and it will install the latest version of iOS