Step 1: Answer in English

As an experienced Apple-certified technician, I'm well-versed in diagnosing and resolving iPhone issues. Let's delve into the potential reasons why your iPhone is not turning on and explore the troubleshooting steps you can take:

1. Check the Power Source:

Ensure that the charging cable and power adapter are securely connected to your iPhone and a functional power outlet. Try using a different cable and adapter to rule out any hardware issues.

2. Force Restart:

A hard reset can often resolve minor software glitches. Simultaneously press and hold the Power button and the Volume Down button until the Apple logo appears. Continue holding until the phone restarts.

3. Battery Depletion:

If your iPhone has been completely discharged, it may not turn on immediately. Connect it to a power source and wait a few minutes to allow the battery to charge.

4. Physical Damage:

Inspect your iPhone for any visible damage like cracks, dents, or water damage. Even minor damage can affect the device's ability to turn on properly.

5. Liquid Contact:

If your iPhone has come into contact with liquid, it may have caused internal damage. Turn off the phone immediately and do not attempt to charge it. Seek professional assistance to diagnose and repair any liquid damage.

6. Software Malfunction:

A software glitch can also prevent your iPhone from turning on. Connect your phone to a computer and open iTunes. If iTunes detects your phone, you may need to restore it to factory settings.

7. Hardware Failure:

Unfortunately, in some cases, the issue may be due to a hardware failure. This could be a faulty battery, a damaged display, or a malfunctioning logic board. Consult an authorized Apple repair center for professional diagnosis and repair.

Additional Tips:

* Remove Accessories: Disconnect any accessories, such as headphones or external batteries, as they may interfere with the iPhone's ability to turn on.
* Clean the Charging Port: Use a soft brush or toothpick to gently remove any debris or lint that may be obstructing the charging port.
* Try a Recovery Mode Restore: If all else fails, you can attempt a recovery mode restore. This will erase all data from your iPhone and reinstall the latest iOS software.

Remember, if you are unable to resolve the issue yourself, it is always advisable to seek assistance from an authorized Apple repair center. They have the necessary expertise and tools to diagnose and repair your iPhone efficiently.

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Cross your fingers and try a hard reset. To hard reset your iPhone on an iPhone 6S or older, press and hold down the Sleep / Wake button (the power button) and the Home button at the same time, for at least 20 seconds or until the Apple logo appears on the screen.read more >>