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iPhone won't turn on: causes and solutions

20/05/2026 - 06:46 - Tiago Miguel Magalhães de Abreu
iPhone won't turn on: causes and solutions

If your iPhone won't turn on at all, you may be dealing with a frustrating problem that prevents access to your phone, whether it's an iPhone X, iPhone 11, iPhone 12, or even the latest models like the iPhone 17 Pro Max. This problem can have various causes, from battery defects to more complex internal damage, and it is essential to identify the root cause to apply the correct solution.

At iServices, we understand how important your phone is in daily life, and that is why we offer specialized technical assistance to repair your iPhone, guaranteeing speed and safety. In this article, we examine the most common reasons why an iPhone won't turn on at all, present step-by-step solutions, and answer the most frequently asked questions from users.

iPhone won't turn on? The causes.

Battery completely empty or damaged

One of the most common reasons an iPhone won't turn on is that the battery is completely discharged or, in more serious cases, damaged. Even if the user tries to turn the device on, the lack of power prevents it from starting up. Older models may suffer from natural battery wear, while in recent models, the battery can fail due to manufacturing defects or heavy use.

Power button issues

The power button is essential for activating the iPhone. If this button is damaged or stuck, the phone will not respond to the command to turn on, giving the impression that it is completely defective.

Operating system errors or corrupted software

Sometimes, an error in the iOS operating system can cause the iPhone to get stuck on a black screen or simply not turn on. This can happen after a failed update, the installation of incompatible apps, or corruption of internal files.

Internal hardware issues

Physical damage, such as drops or exposure to liquids, can affect essential internal components, such as the motherboard, screen, or power circuits. In these cases, the iPhone may not respond to the power button, and there is a more serious problem that requires specialized technical intervention.

Solution table

CauseRecommended solutionComplexity
Battery empty or damagedCharge iPhone or replace batteryLow
Power button damagedRepair or replacement of the buttonMedium
Operating system errorsRestore iOS via iTunes/FinderMedium
Internal hardware issuesDiagnosis and repair in technical centerHigh

Step-by-step solutions

Charging the iPhone or replacing the battery

  • Connect the iPhone to an original charger and let it charge for at least 30 minutes.
  • Check if the charging indicator appears on the screen.
  • If the device does not turn on after charging, try a different cable and adapter to rule out accessory problems.
  • If the problem persists, the battery is likely damaged and should be replaced at iServices.

Repair or replacement of the power button

  • Test if the button responds by pressing it firmly and listening or feeling for a click.
  • If the button is stuck or not working, do not force it to avoid making the problem worse.
  • Go to an iServices store for diagnosis and repair of the button with original parts.

Restoring iOS via iTunes/Finder

  • Connect the iPhone to the computer with the original cable.
  • Open iTunes (Windows or macOS Mojave and older) or the Finder (macOS Catalina and newer).
  • Put the iPhone into recovery mode (depends on the model; for example, on the iPhone X and newer, briefly press the volume up button, then the volume down button, and hold the side button until recovery mode appears).
  • Choose the "Restore" option to reinstall the operating system.
  • Wait for the process to complete and check if the iPhone turns on normally.

Diagnosis and repair in technical center

  • If the iPhone does not turn on even after trying the previous steps, there may be a serious internal problem.
  • Visit an iServices store for a detailed diagnosis and price quote for the repair.
  • Our specialized technicians use advanced equipment to identify and repair damage to the motherboard, screen, or other components.

Why won't my iPhone turn on even though it is charged?

This can happen due to a power button issue, an operating system error, or internal hardware damage. We recommend checking the button and attempting to restore iOS before seeking technical assistance.

How do I reset an iPhone that won't turn on?

You can try to perform a forced restart, which varies by model. For example, on the iPhone X and newer, briefly press the volume up button, then the volume down button, and hold the side button until the Apple logo appears.

How long does a repair for an iPhone that won't turn on take?

At iServices, we offer express services in many stores, so the repair time can range from a few hours to 2 business days, depending on the complexity of the problem.

What should I do if the iPhone won't turn on after an iOS update?

Try to restore the operating system via iTunes or Finder in recovery mode. If the problem persists, go to an iServices store for specialized help.

Do you need professional help? iServices is here for you

If your iPhone won't turn on at all and you cannot solve the problem yourself, we have a team of specialized technicians at iServices ready to help you. We offer a warranty on all repairs, express services for extra convenience, and specialized technical assistance for all models, from the iPhone X to the iPhone 17 Pro Max. Visit the nearest iServices store or check our website at iservices.pt for more information. Trust us to bring your iPhone back to life with quality and safety.

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