why can't update my iPhone?

I saw there are a lot of people use the iPhone, start the old version until the latest iPhone. the iPhone is being kinged of a smartphone, everywhere you are will see the iPhone on the hand. It's a successful product of Apple that a lot of people love the iPhone. other things that happen are not known as the base that is can't update to the new operating system. People that unknown about the iPhone, The will ask, why can't update my iPhone..?

that is the question for people not known about the case. this post will answer the question. So I hope you after read this post will know about that.

The rest of the Storage capacity is too small.
To be able to update your device's operating system with the new version, you must provide at least 3GB of storage capacity to be able to accommodate new system updates. How about for have limited storage capacity, so the way is You should do free up space by transferring your multimedia data from internal storage memory so that it doesn't fail to update.

Unstable connectivity.
The problem on Update Failed is on the connectivity. So for success update to the new system, you must have well connectivity such as Wi-fi. You need stable connectivity because the uploaded data is quite large.

 Low Battery.
Before you start update system on your iPhone you must have a full capacity battery. because is have less of capacity battery you will get update failed. the update is needed a full battery because its The system update process is a series of processes that are long enough and can not be stopped in the middle of the road.

We can suggest you connect your device with the charger on the updating process. Connecting the device's power connectivity also ensures that you don't fail to update.

 The device is not supported for the update. 
The update system is not for all device, that is support on a few devices only. We saw why there is no update notification from the AppStore on you going to the setting menu, is mean your system device is not compatible with the new system. You need to make sure that your Apple device is still in the category of compatibility devices.

So that is the reason why can't update my iPhone. I hope this post makes you know about the update failed on your iPhone. if you have the iPhone you must know about more problem. To anticipate data loss, also backup before updating the new version.