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iPhone 7 can't be casino plus free 100turned on. How to solve it? iPhone 7 is a smartphone launched by Apple in 2016. Compared with other brands of mobile phones, it has higher performance, better user experience and higher brand value. However, even such high-end mobile phones inevitably have some problems. One of them is that it can't be turned on. When you press the power-on button of the iPhone7, but the Apple logo on the screen does not appear, or a red, blue or even white error prompt appears on the screen, the iPhone7 cannot be turned on. So, how should we solve this situation?I. Check the battery. First of all, we should check whether the battery of iPhone 7 is still charged. Because if there is no power, the mobile phone naturally can't be turned on. If we find that the battery has run out of power, we need to charge the mobile phone for a period of time and wait for the power to recover to a certain extent before trying to turn it on. II. Hard restart. If the battery is sufficient, but it still can't be turned on, we can consider using the hard restart method. The specific operation method is as follows: 1. Connect the iPhone7 to the computer or charger to make sure it has been charged and the plug is firmly connected. Two. At the same time, press and hold the volume down and power buttons on the left side of the mobile phone until the Apple logo appears. 3. At this time, release the button and wait for the iPhone 7 to turn on again. If the iPhone 7 cannot be turned on normally, this method can be repeated many times. NoAfter that, it should be noted that hard restart may turn on the protection mode of iPhone7. At this time, professional maintenance operations such as firmware upgrade or repair are required. III. Another reason why the upgrade system iPhone 7 cannot be turned on may be that the system is malfunctioning or needs to be updated. How to upgrade the system? Specifically, you can take the following steps: 1. First, download and run the latest iTunes software on your computer. Two. Use a USB cable to connect the iPhone 7 to the computer. 3. After opening the iTunes software, click the "Device" tab, and then select your iPhone7 device. Four. Click the "Summary" tab, find the "Check for Updates" button in the right window, and click. 5. If there is a released latest system version, iTunes will notify you.Follow the prompts on the screen to update the firmware. It should be noted that it is better to back up important data before upgrading the system. At the same time, it is also necessary to ensure that the mobile phone is sufficiently charged in the process of upgrading the system, otherwise accidents may occur. In addition, upgrading the system also needs to download certain data, so it is also a very important step to ensure the stability of the network environment. To sum up, iPhone7 is an excellent smartphone, but it is inevitable that it cannot be turned on normally. In this case, we can solve the problem one by one by checking the battery, soft restart, upgrading the system and other schemes. However, in order to avoid this situation, we can also carry out daily maintenance, clean up application cache, data garbage, etc., and keep the system smooth and stable.

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