How to Run iPhone Diagnostic Test for iPhone 16 [Free]

Part 1: Why Should You do iPhone Diagnostic Test

If you’re wondering why you should run diagnostics on iPhone 16 in the first place, this section has got you covered. Here are the top reasons to do Apple iPhone diagnostic test.

• To check the hardware functionality of a used iPhone before purchasing it.
• To find out whether an new iPhone 16 is real or fake.
• To check whether all the components of an iPhone are working fine.
• To find out whether any components of an iPhone have been replaced with new ones.
• To find out whether the new iPhone 16 has been opened and repaired before.
• To find out whether the iPhone is in its optimum condition.

Part 2: How to Run Diagnostic Test on iPhone 16 Officially

Using the official diagnostic test for the iPhone 16 is a reliable method to identify hardware and software issues. This approach leverages Apple's built-in diagnostic tools, which provide accurate and detailed insights into your device's health.

Note:

Before running iPhone diagnostic test, ensure your iPhone 16 is updated to the latest iOS 18 version.

• Press and hold the side button until the power-off slider appears. Slide it to turn off your device completely.
• While your iPhone is off, press and hold both the Volume Up and Volume Down buttons simultaneously. While holding these buttons, connect your iPhone to a power source using a charging cable.
• Once the Apple logo appears on the screen, release the Volume buttons. This will enter the iPhone diagnostic mode.
• If prompted, connect your iPhone to a Wi-Fi network to proceed with the diagnostics.
• Follow the on-screen instructions to start the diagnostic session. You may need to enter your iPhone's serial number.
• Select the tests you want to run, such as checking the battery, camera, or audio functions.
• Once the tests are complete, you can exit the iPhone diagnostic mode by pressing and holding the side button, then selecting "Exit".

Part 3: How to Run iPhone Diagnostic Test Free

To perform an effective iPhone diagnostic test free, you need an authentic iPhone diagnostic tool. Below-mentioned is the top 3 iPhone check software available in the market right now.

1. Tenorshare iCareFone [Free & Simple]

Tenorshare iCareFone is one of the best apps you can find to run iPhone diagnostic test. With it, you can check the authenticity and functionality of your iPhone 16 in an instant.

It’s got the highest probability of showing you an authentic report. Plus, it has tons of other features to make your iPhone 16 experience a lot better! iCareFone is an iOS management tool that you can use to manage your photos, videos, contacts, etc. It’s also a free backup tool that can help you backup all iPhone 16 data.

The most important is that iCareFone can run diagnostics on iPhone, which is totally free. Here’s how it works.

• Download and install Tenorshare iCareFone on your PC. Connect your iPhone 16 to the PC. If you’re connecting it to that PC for the first time, tap “Trust This Computer” on your iPhone’s screen when prompted. Then open iCareFone on your PC.

  

  
  

• On the Home page of iCareFone, click “View” right next to “Test Report”. On the page that opens up, you will see all the details about your iPhone’s hardware.

  

Here’s how you can understand this iPhone 16 diagnostic report.

• If you see the text, “Congratulations, your device has not been disassembled.” at the bottom left, it means the iPhone has never been opened. That means no component has ever been taken out and replaced with a new one.
• The “Battery Life” label on the bottom right indicates the current battery health of your iPhone. New iPhones always have 100% battery health.
• The “Charge Time” label indicates how many times the iPhone has been charged to 100%.
• The “Activation Status” means the iPhone has connected to Apple servers and started its warranty period.
• In the table you see at the top, you can view the status of all the hardware components of your iPhone.
• Each of the rows should say “Normal”. If that’s not the case, that means there’s something wrong with the specific hardware component of that row.

Video Tutorial

2. TestM

Another popular iPhone testing software you can use to run an iPhone hardware test is TestM. It’s an iOS and Android app that you can download directly on your smartphone.

After downloading it, the app takes an extensive test of your iPhone and presents you with a report of the final results. The report is divided into various sections, based on the hardware being tested.

• For instance, the touch screen and 3D Touch technologies are indicated under the “Screen” section.
• Furthermore, the earpiece, speaker, microphone, and headphone tests are showcased in the “Sound” section, and so on.

Important:

However, due to the nature of this tool, it might not be as reliable as iCareFone. That’s because this app’s tests are run on the iPhone itself, which is not a sophisticated method of testing an iPhone’s hardware.

3. Phone Diagnostics

Another popular tool to run diagnostics iPhone is Phone Diagnostics. This handy app is not essentially an iPhone diagnostic tool, but it can help you test the functionalities of your device on your own.

With this app, you can test the functionality of your iPhone’s hardware from a single screen. For instance, you can use the “Digitizer” feature to check the touch screen of your iPhone 16. It asks you to touch different areas of your screen so you can check whether they work correctly.

Part 4: FAQs about iPhone Diagnostic Test

What is an iPhone diagnostic test?

An iPhone diagnostic test is a series of checks designed to assess the health and performance of your device. It can identify issues related to hardware, battery, and software, helping users troubleshoot problems effectively.

Does iPhone have built in diagnostics?

Yes, iPhones do have built-in diagnostic capabilities that allow you to test various hardware components and system functions.

How can I access the diagnostic features?

There isn't a universal code for accessing diagnostic features on all iPhones. It's best to contact Apple Support or visit an Apple Store for detailed diagnostics using specialized tools.

Are there free tools for diagnostic testing?

Yes, there are several free apps available that provide basic diagnostic testing, such as Tenorshare iCareFone.

Conclusion

Running an iPhone diagnostic test is the best way to figure out whether an iPhone 16 is authentic or not. Using a reputable iPhone diagnostic tool can save you from many types of fraud.

In this article, we have taken a look at how to run diagnostics on iPhone 16 and the top 3 tools you must use to run iPhone diagnostic test free. If you want to have the best results, Tenorshare iCareFone is your top choice.

Downloads:

Tenorshare iCareFone - Best iOS Backup Tool and File Manager

rated on Trustpilot >

• Free backup everything you need on iPhone/iPad/iPod
• Transfer music, photos, videos, contacts, SMS without limitation
• Selectively restore files without erasing current data
• 1-Click to transfer photos from iPhone to PC/Mac
• Supports the latest iOS 18 and iPhone 16