Your iPhone 7 plus won’t turn on. You press the POWER button on your iPhone – and nothing happens. There is no display just a black screen or the iPhone stuck during start up. This is a general diagnostic and repair steps to fix this problem.
First case your iPhone 7 plus won’t turn on, you have a frozen black screen.
You press the POWER button on your device – and nothing happens. There is no display just a black screen. Usually, this can be resolved easily by forcing your device to restart. To force restart an iPhone 7 plus, Press and hold both the Sleep/Wake and Volume Down buttons for at least 10 seconds, until you see the Apple logo. Release both buttons, wait about a minute, and your phone should be back to normal. You can force your device to restart even if your screen is black or your buttons aren’t responding. Forcing your device to restart won’t erase the content currently on your device.
Second case your iPhone 7 plus won’t turn on, the battery has run down.
You press the POWER button on your device – and nothing happens. There is no display just a black screen. The battery has no charge left. The iPhone Motherboard doesn’t receive any power; iPhone 7 plus cannot turn on, to solve this problem, plug in your iPhone 7 plus and let it charge for up to one hour. After a few minutes, you should see the charging screen. If it was just a low battery the phone will come on by itself. If you don’t see the charging screen within an hour, or you see the connect to power screen, check the jack, USB cable, and power adapter. Make sure that everything is plugged in firmly, free of debris, and not damaged. You might want to try a different USB cable or power adapter.
Third case your iPhone 7 plus stuck during start up, the firmware has been corrupted
You press the POWER button on your device -the iPhone 7 plus turns on but gets stuck during start up, the firmware has been corrupted. You might see the Apple logo or a red or blue screen for a long time during startup. To solve this problem try these steps:
- 1. Connect your iPhone 7 plus to a computer and open iTunes.
- 2. While your device is connected, force it to restart. Press and hold the Sleep/Wake and Volume Down buttons at the same time.
- 3. Don’t release when you see the Apple logo. Keep holding until you see the recovery mode screen.
- 4. When you get the option to restore or update, choose Update. iTunes will try to reinstall iOS without erasing your data.
- iTunes will download the software for your device. If it takes more than 15 minutes, your device will exit recovery mode and you’ll need to repeat steps 2 and 3 to.
If you still see a black screen after following the steps in this article. Take your device to repair shop.