3 Easy Steps On How To Run Diagnostics On iPhone

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Running a diagnostic test on your smartphone is a great way to identify problems your phone might be having. 

Many situations may require running a diagnostic test. For instance, you might want to know why your phone is suddenly less efficient, or the status of a second-hand phone before buying or selling it.

Regardless of your reason, running a diagnostic test on your phone once in a while is not a bad idea. 

But how do you do this? It is relatively easy to run a diagnostic test on android phones but with iPhones, it might be a little more difficult. This is why in this post we will be going through the easy steps on how to run diagnostics on iPhones. 

Table of Contents

How To Run Diagnostics On iPhone


Apple products being designed as they are do not support or accommodate users running intrusive operations on the device which would make it challenging to run diagnostics on iPhones or perform any DIY (Do It Yourself) fixes. 

However, there do provide precise readouts on battery performance and history. You can find this under the iPhone settings. Simply go to Settings > Battery to access this information.  

You can get a variety of information regarding your device’s battery performance like battery health, maximum battery capacity, peak performance capability, etc but that is about it. To run a full diagnostics on iPhone you would have to follow one of these methods; 

1. Run Diagnostics On iPhone With Third-Party Apps

This is the most practical method for performing diagnostics on your iPhone or iPad. Utilizing third-party software helps you bypass the limitations offered by iOS. 

You can also use these apps for Android phones that do not have built-in diagnostics tools or if you want a more thorough approach to testing the hardware of your phone.

There are a lot of apps that allow you to run diagnostics on iPhones, some of these apps may even include features like phone insurance services, trade-in, and repair shop locations. 

These diagnostic testing applications can analyze your device and detect problems that need to be addressed or give you a lead on how to solve whatever issues your device may have. 

They are capable of performing dozens of tests, such as the hardware test for the iPhone, the WiFi, Bluetooth, and mobile signal strength tests, the microphone and speaker operation, and much more. 

There are several third-party apps you could try. Some of these are; Phonecheck, Phone doctor, Tool checker, TestM, and much more. 

2. Run Diagnostics On iPhone With Apple’s Customer Services

Typically, apple products are designed to be resistant to viruses and malware. However, they are not the exception to all the problems that plague smartphones, including hardware-related issues. 

This is why apple offers services to help their customers fix whatever issues they are experiencing with their devices.

Many people report cases of experiencing problems with the camera merely showing a black screen, overheating, or the battery dying too quickly. If you are experiencing any of these issues with your iPhone, you can simply take leverage of apple’s customer service or go down to the genius bar nearest to you. 

To run diagnostics on iPhones with the aid of customer service just type “diagnostics://” into safari on your iPhone or visit support.apple.com.

3. Run Diagnostics On iPhone With Apple’s Remote Diagnostics Exam

Another way to run diagnostics on iPhone is by requesting a remote diagnostic exam from apple. The best part is that it is free! 

Apple’s Genius Bar normally offers free diagnostic assistance, but not everyone has the time to visit a physical store. Fortunately, Apple provides free remote diagnostic testing.  

While there are some issues that would inevitably require you to go to a physical repair shop, it is possible for Apple Support to detect any potential hardware problems without physically looking at your device.

For the remote diagnostic test, all you need is the phone’s IMEI (International Mobile Equipment Identity) number. 

Which is a distinct 15-digit number that allows your phone to connect to cell phone networks. It can tell you the entire history of the iPhone, including whether it has ever been stolen or repaired before.

To initiate a remote diagnostic test, you would first have to contact Apple Support and wait for a response from them. Once you receive a prompt from an Apple specialist, you would need to do the following:

  1. Go to Settings on your iPhone.
  2. Choose Privacy.
  3. Select Analytics or Improvements.  
  4. Click the “Start Diagnostic Report with Apple Support” option.
  5. Select Agree after going through the terms and conditions.

Then you have to wait for them to perform the hardware diagnostic test on your device. This may take a minute or two to finish. 

In a case where an issue is found, the tech support team will walk you through the steps to take if your issues can be resolved remotely. If they determine that the problem needs to be fixed by a qualified technician, they may also advise visiting an actual Apple Store or an approved repair facility.

Why Should I Run Diagnostics On iPhone?


The primary reason for running a diagnostic test is to find issues with your device. Running diagnostics on your iPhone is an effective method for determining whether your smartphone is in functioning order. 

If You Are Buying Or Selling A Used iPhone

Diagnostic testing is also useful when selling or purchasing used or secondhand smartphones. 

You may have considered buying secondhand smartphones at some time in your digital life, but how would you be sure you are not getting a faulty device?  In this case, diagnostic testing will assist you in confirming that the used phone’s hardware and software are fault-free.

Used phones provide quality at a lower price and can be a cost-effective solution, particularly for businesses wishing to replace outdated phones. 

A diagnostic test can be used to check the battery’s condition and provide in-depth information on the battery’s past, remaining charge cycles, and current power capacity.

Diagnostic test results can be compared to a brand-new version’s predicted functionality. You can decide not to purchase the gadget based on the comparison, arrange to send it to a repair shop, diagnose the issues, or negotiate the price difference with the vendor (s). 

Regardless of your preference, diagnostic tests give you all the knowledge you need to choose wisely when purchasing, offering for sale, and optimizing mobile devices.

For Insurance

Running diagnostic tests on your iPhone frequently can guarantee that it is in excellent condition throughout its lifespan. Your phone will stay in good shape and have a high resale value if you can immediately spot problems with it before they influence other parts of the phone.

Some other reasons may include:

  1. To distinguish between a real iPhone and a fake one.
  2. To verify that every part of an iPhone is functioning properly.
  3. To verify whether an iPhone has previously undergone work.
  4. To verify whether any part of an iPhone has been replaced.
  5. To check if an iPhone is at its peak performance.

What Issues Can I Find By Running Diagnostics On iPhone?

Several problems with smartphones can be discovered during diagnostic checks. Some of them are obvious and may validate whatever assumption you had before the test. Some of them are harder to spot in everyday usage because they are more subtle.

battery issues top the list of problems discovered by diagnostic tests on smartphones. Other common problems are poor auditory feedback, dead pixels, sluggish or unresponsive touch screens, backlight issues, Bluetooth, and network connection problems.

IMEI blacklist issues may also be detected by diagnostic tests. A diagnostic test should also identify any faults and point out a broken camera and microphone.

How To Put Your iPhone In Diagnostics Mode


In 2022, Apple introduced its self-service program for iPhones. It provides the part, repair manuals, and tools needed to perform minor fixes on an iPhone. 

With this, you are provided with all you need to be able to repair your iPhone’s display, battery, bottom speaker, camera, display, SIM Tray, and Taptic Engine.

As part of the System Configuration procedure, you might be prompted to place your iPhone in diagnostics mode if you choose to repair it yourself. You can do it by using the steps below:

  1. Start by turning off your phone
  2. Hold down the volume up and volume down buttons.
  3. With both volume buttons held down, plug in your phone to a power source. 
  4. The apple logo should come up after a few seconds then you can let go of the buttons.
  5. Click Start Diagnostics when you see the message “Diagnostics allow Apple to diagnose potential hardware and software issues with this device.”

If you decide to opt out of the diagnostics mode, simply restart your iPhone. The process of restarting your iPhone would depend on the model.

For newer versions with face ID like iPhone X, iPhone XS, iPhone XR, or any iPhone 11, iPhone 12, or iPhone 13: Press and quickly release the volume up button, do the same for the volume down button, then hold down the side button until the apple logo comes up.

For 2nd generation iPhones like iPhone 8 or iPhone SE or later: Press and quickly release the volume up button, do the same for the volume down button, then hold down the side button until the apple logo comes up.

To restart iPhone 7 or iPhone 7 plus: Hold down both the volume down button and the power button at the same time until the apple logo comes up.

For 1st generation iPhones like iPhone 6 or iPhone 6s: Hold down both the power button and the Home button at the same time. When the Apple logo comes up, release both buttons.

Frequently Asked Questions About How To Run Diagnostics On iPhone

How Long Does It Take To Run Diagnostics On iPhone?

Depending on what method you use to run the diagnostic on your iPhone, it may take less or more time to complete.

Apple diagnostics are usually completed within 2 to 5 minutes but could take longer. While it could take up to 20 minutes to complete a diagnostic test using third-party software.

Does Apple Run Diagnostics On iPhone For Free?

Yes, Apple offers free diagnostic tests both remotely and at their stores. However, if you have exceeded your warranty time frame and you are in need of a replacement, you might be charged.

Can Apple Technicians Run Diagnostics on iPhone Remotely?

Yes! With Apple’s new remote testing service, Apple technicians can run diagnostics on iPhones without having to see the phones physically.

You would need a good Wi-Fi connection and may be asked to provide your IMEI number (International Mobile Equipment Identity).

Do iPhones Have A Built-in Diagnostic Tool?

Technically, yes. But their diagnostic software is not available to the public. The software that the Apple Store uses is already pre-installed on your phone. 

However, you would be able to access it only when you are connected to WiFi and an Apple technician makes a diagnostic request to your serial number. It would appear under Diagnostics in the settings menu.


Diagnostic tests often save time and money spent on guessing why your phone is not working properly. 

Through a constructive assessment of a mobile phone’s general operation or performance by utilizing software tools, diagnostic tests can quickly detect the issue directly. 

So next time you have issues with your device, you don’t need to speculate. Just run a quick diagnosis and find out the issue.

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