iPhone won’t Turn On? Possible Reasons and Solutions!

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iPhone won’t Turn On? Possible Reasons and Solutions!

4 March 2020 Ashley S. Miller Specialist of Customer Service Dept.

Summary
Have you ever found you can not start your iPhone as usual? No matter you press the power button or the main button. Sometimes, your device may get into black screen or white screen of death when it fails to boot. Here, we will analyze possible reasons and provide related solutions.

CONTENTS

Part 1: Possible Reasons of iPhone Won’t Turn on: 1. Hardware; 2. Software

Part 2: Solutions for System Causes: Renee iPassFix

Part 3: Methods to Solve iPhone Boot Failure: 1. Force Restart; 2. Charge iPhone for Over 30 Minutes; 3. Recovery Mode; 4. DFU Mode; 5. Contact Apple Store

Part 4: iPhone Black Screen with Red Line

Part 1: Possible Reasons of iPhone Won’t Turn on

Many iPhone users will blame the hardware when their iPhone won’t turn on. However, this failure could be caused by software at most of the time. Here, we will analyze the possible reasons of iPhone boot up failure.

1. Hardware

Power Button Failure

If the power button is stuck or fail to react, related iPhone won’t turn on after power off. If you are in such situation, please ask for help from Apple Store.

iPhone Monitor

If the monitor fails to work, users will just hear the sound but the monitor is still black. At this moment, users should handle the device to professional.

Drained Battery

One of the most common reason which lead to iPhone boot up failure is the drained or poor battery. Once the battery is drained, iPhone will power off and the only solution is to connect the iPhone to power adapter. Beside, poor battery will also lead to black screen.

Besides, replacement of unauthorized battery sometime can not be charged. And users can check the Battery Health through the following steps: Settings > Battery > Battery Health. And please check the percentage on the right side of Maximum Capacity. If the Maximum Capacity just shows the “-” shows, please send the device to professional for detection and repair.

Attention: Battery Health is only availble in iPhone after iPhone 6 with iOS 11.3 or later version. And it will give advice on when to replace a new batter.

2. Software

System Error
Update failure, damaged system data can also lead to iPhone boot up failure. If it is the system problem, Renee iPassFix can help you out of this problem by restoring system. Please refer to Part 2 for detailed steps.

Damaged Main Board
The worst situation is that iPhont won’t turn on is lead by the damaged main board. Situation like serious crash and water damaged can ruin the main board in iPhone. As a result, iPhone will fail to start up. And following situation may happen:

● Whole screen will be black, blue or even red.

● Get in start up loop.

● The battery drains faster or abnormal.

To solve these problems, you can draw support from Renee iPassFix which help users out of the iOS errors even boot up failure.

Part 2: Solutions for System Causes: Renee iPassFix

If your iPhone won’t turn on, you can try Renee iPassFix to solve this problem. Renee iPassFix can solve more than 50 iOS system errors, like stuck in recovery mode, start up loop, error 4013, black screen, white screen and frozen device. With clear interface, users can master the software and fix iPhone, iPad and even iPod Touch with different iOS versions quickly. Besides, Renee iPassFix can also remove the forgotten passcode of iOS device.

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Please follow steps below to fix iPhone:

1. Download and install Renee iPassFix and then open it.

2. Connect your iPhone to computer with cable. Click [Fix Device].

3. Click [FIX ME] to download the firmware or select the option [Import Firmware Manually].

4. Wait for fixing the device. After finished, please disconnect the device from computer.

Following methods are also helpful when you encounter iPhone boot up failure. And solutions for iPhone black screen, stuck at start up logo and black screen with red line will be introduced as well.

Part 3: Methods to Solve iPhone Boot Failure

Black screen and stuck at start up logo are common situation when iPhone won’t turn on. Black screen could be caused by damaged battery, power outage, crashed software or system error.

Besides, sticking at start up logo could be caused by:

● Update failure

● Jailbreak or App installation errors。

● Running Outdated iOS Beta version

● Hardware damaged

Please try the following solution to sovle the problem if you encounter black screen of iPhone.

1. Force Restart

The first solution for iPhone startup failure is force restart.

Force restart for different iPhone models:
iPhone 8 or later: Press and quickly release the Volume Up button. Press and quickly release the Volume Down button. Then press and hold the Side button until you see the Apple logo.

iPhone 7, iPhone 7 Plus: Press and hold both the Top (or Side) button and the Volume Down buttons until you see the Apple logo.

iPhone 6s or earlier iPhone with Home button: Press and hold both the Home and the Top (or Side) buttons until you see the Apple logo.

2. Charge iPhone for Over 30 Minutes

If you can not solve the problem with force restart, please connect your iPhone to power adapter and charge it up. Sometimes, this problem could be caused by the power outage. Please try to turn on the device after charging for 30 minutes or more.

TipsAfter a few minutes of charging the iPhone, you should see the charging screen. If you don’t see the charging screen within an hour, check the jack, USB cable, and power adapter. You might want to try a different USB cable or power adapter.

iphone won't turn on

If you still can not start your iPhone, please try the followign method.

3. Recovery Mode

Update iPhone after accessing recovery mode can fix many iOS system errors which include iPhone start up failure. This method will just reinstall iOS instead of modifying data inside. If the start up failure problem is caused by update failure but not hardware damaged or jailbreak, you can also try this solution. Please update iTunes to the latest version beforehand.。

Detailed Steps:

1. Open iTunes on your computer and then connect the iPhone to computer with USB cable.

2. Get your iPhone into recovery mode with steps below:

● iPhone 8 or later: Press and quickly release the Volume Up button. Press and quickly release the Volume Down button. Then, press and hold the Side button until you see the recovery mode screen.

● iPhone 7 and iPhone 7 Plus: Press and hold the Top (or Side) and Volume Down buttons at the same time. Keep holding them until you see the recovery mode screen.

● iPhone 6s or earlier iPhone with Home button: Press and hold both the Home and the Top (or Side) buttons at the same time. Keep holding them until you see the recovery mode screen.

You will see this screen once iPhone get into recovery mode:

3. Click [Update] in the pop up window to update iOS.

You can also click [Recover] to fix the start up failure if [Update] can not solve this problem.
Attention: [Recover] will erase all data and settings in related iPhone. All data can not be restored if you do not backup beforehand.

4. DFU Mode

Besides recovery mode, Apple devices also get another advanced function – DFU mode. Users can fix system problems which can not be solved by recovery mode. But DFU mode will erase all data in iPhone.

Operations:

1. Get iPhone into DFU mode.

▶ Different iPhone will have different steps to access DFU mode.

For iPhone 6s or earlier iPhone:

1. Shut iPhone down and then connect iPhone to computer with USB cable.

2. Press and hold the Top (or Side) button for 3 seconds, then press Home button. Hold these 2 buttons for 10 seconds.。

3. Release the Top (or Side) button and keep holding the Home button for 5 seconds. If the screen is black and iTunes does not pop up any notification, then your device is in DFU mode.

For iPhone 7 and iPhone 7 Plus:

1. Shut iPhone down and then connect iPhone to computer with USB cable.

2. Press and hold the Top (or Side) button for 3 seconds, then press Volume Down button. Hold these 2 buttons for 10 seconds.

3. Release the Top (or Side) button and keep holding the Volume Down button for 5 seconds. Nothing will be displayed on the screen when the device is in DFU mode. If open, iTunes will alert you that a device is detected in recovery mode.

For iPhone 8 or later:

1. Connect the device to a computer using a USB cable. Quick-press the Volume Up button then the Volume Down button

2. Hold down the Side button. Once the screen goes black, hold down both the Side button and Volume Down button.

3. After 5 seconds, release the Side button while continuing to hold down the Volume Down button.

4. Nothing will be displayed on the screen when the device is in DFU mode. If open, iTunes will alert you that a device is detected in recovery mode.

2. Finally, click “Recover” in the pop up window in iTunes after iPhone accessing DFU mode.

5. Contact Apple Store

If the above methods can not solve the problem, your device may encounter hardware damage or other problems. Under such situation, please send the devices to Apple Store or authorized service provider to fix it.

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