If you want khổng lồ update your iPhone 4/4s to iOS 9, this article will help you with that. Here shows you how lớn update iPhone 4/4s to iOS 9 and things you need lớn pay attention lớn.

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2. Cheông xã Compatibility Of Your Device

Another thing you need khổng lồ know when you are dealing with how khổng lồ update iPhone 4/4s khổng lồ iOS 9 hassle-miễn phí is the compatibility of your iOS device. iOS 9 is currently available for iPhone 4s và models, which came afterward. You can also nâng cấp it for máy tính bảng iPad Air 2 and iPad mini 2 & 3 efficiently.

So, if you have sầu an Apple device that operating system. iOS 9 requires storage is not compatible, you should stop then & there from making an upgrade as it may harm your device. Plus, you should kiểm tra and then upgrade your iOS device lớn the new iOS version lớn avoid problems later on.

3. Sufficient Space To Install Update

When you download & install the new firmware on your device, you are notified of the need for không lấy phí space. Ample of space may be required to lớn install the upgraded version of the operating system. iOS 9 requires a storage space of about 1.3 GB on your iPhone. Free up some disk space on your iPhone by either deleting your media files or by storing them at another location. You can restore the data baông xã khổng lồ post the up-gradation process.

4. Update Apps before iOS 9 Update

Update apps và games khổng lồ the lachạy thử version before upgrading iOS 9 as you might not be able to open, delete or update the apps after the iOS tăng cấp. It may also cause apps crashing và freezing. Hence, it is recommended khổng lồ know how to lớn update iPhone 4/4s to lớn iOS 9 prior to rolling out the process.

Keeping in mind the above sầu mentioned necessary tips, you can easily update iPhone 4s to iOS 9 without troubling yourself in future.

Part 2: 2 Ways lớn Update iPhone 4/4S to lớn iOS 9

Of course, you can also try the WhatsApp built-in tin nhắn feature to export WhatsApp messages. This is an appropriate solution if there are not so many WhatsApp messages that need to be exported. Now let"s take a look at some tips on how to lớn operate this for both iPhone and Android.

1. Update Over The Air (OTA)

The wireless delivery of new software or data to thiết bị di động phones and tablets is known as over the air update. If you want khổng lồ nâng cấp the underlying operating system, OTA updates are just meant for you. As the name suggests, you get your updates from wireless carriers, not via USB or other connectivity methods.

Over the air công nghệ is basically used to lớn administer Software Updates, configuration settings, etc directly to your portable devices like Smartphones & tablets. For an over the air (OTA) updates, you should follow these steps.

Step 1 . Head straight lớn the "Settings" of your iOS device first.

Step 2 . Next, scroll the settings thực đơn down và get into the "General" section.

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Step 3 . Lastly, push the "Software Update" tab & then the device will automatically check for the lademo firmware update available for your iOS device.


2. Update iPhone via iTunes

When you think about how to update iPhone 4/4s lớn iOS 9 safely, then the first thing that comes in your mind would be iTunes. The mặc định iOS data management software is designed in a very simple way, making it easier khổng lồ navigate between sections. You need to lớn follow these steps to update iPhone 4s lớn iOS 9 easily.

Step 1 . Make sure that you have the lathử nghiệm version of iTunes installed on both your computer and your iPhone.

Step 2 . Now, plug in your iOS device into your computer with the help of a lightning cable supplied with it.

Step 3 . Next, launch the iTunes on your computer and it will detect your iPhone automatically. Now, select your iOS device. And get into lớn the "Summary" section.

Step 4 . Hit on the "Check for Updates" button and iTunes will look for the lachạy thử firmware update for your iOS device.


Step 5 . Lastly, it will throw a pop up on your screen if the lakiểm tra firmware is available for your iOS device. Hit on the "Download & Update" button khổng lồ initiate the update process.



Now, after reading this article, you won"t need lớn worry about how to update your iPhone4/4S. If you are willing khổng lồ unbởi vì an iPhone update, here is the guide khổng lồ help you with that. Actually, those methods work for all versions of the iPhone, you can also backup your iPhoneX by using dr.fone in one click.