I am now in the national bank iphone 5s upgrade to ios8 3 version

Voluntary, can be upgraded or not, if you upgrade, you can try some new features.

A resurrection of camera roll.

Camera Roll after iOS 8 was canceled, causing a unanimous "crusade" among netizens. So Apple added this feature back to iOS, so you can use the familiar Photos app again.

2. The WiFi function has been effectively improved.

iOS 8's WiFi performance has been criticized, and Apple users have been driven crazy by problems such as signal interruptions and slow speeds. Therefore, in this update of iOS, the WiFi function has been improved, and after testing, both the connection speed and stability have been greatly improved.

Three iCloud** Gallery.

iCloud launches the Cloud Streaming feature, which will automatically sync to iCloud and sync with all your devices on your iPhone in the future. This means that if you change it on your iPhone or iPad, all the devices under you will see the same effect. However, due to the large capacity required for this feature, the free space may not be enough!

The highly anticipated Apple Pay is finally here. However, Chinese mainland users are not available for the time being, and there is news that Apple is negotiating with UnionPay, and it is believed that the results will be known soon.

5. Information function enhancements.

iOS makes the connection between iOS devices stronger, and under the latest version of the system on other devices, the iPhone can send and receive text messages on the iPad and Mac, realizing the commonality of information.

You upgrade it according to your personal preferences, I use the synchronization assistant to upgrade, but you** corresponding to the model of firmware is not recommended to use iTunes to directly detect the update and upgrade, because the use of iTunes ** firmware is very slow, I and my classmates are from the synchronization assistant **, very soon, and then directly update and install it, from the top you can also**free genuine authorized software and games。 You can give it a try, I hope it can help you.

9 can, don't go back up, personally test the rise over 10, the card is not good.

Hello, iPhone5s can be upgraded to iOS8. You can upgrade directly in the phone settings - general - software update.

Jailbroken users cannot receive the system push, and can only restore the firmware upgrade through iTunes on PC.

First, connect the phone to the computer, open iTunes, press and hold the shift key on the keyboard, click Restore iPhone, and select the good firmware update.

Before updating the firmware, make a backup of your important data.

Note: Jailbroken users should not use iTunes automatic update, otherwise they will not be able to enter the system and will lead to data loss.

In addition, there is another point to pay special attention to: you must be cautious before upgrading iOS8, because some unscrupulous businesses on the market modify the application of serial number IMEI and fuselage information are very serious, Apple seems to be aware of this problem, if your mobile phone is such a machine or no matter what version, whether it is replaced from the after-sales service, as long as the serial number information cannot be queried on Apple's official website, Apple will treat it as an illegal machine, that is to say, the serial number that has not been queried, may not be activated after the upgrade.