Why iPhone won’t turn on after an update: find the cause and fix the problem

With the rapid advancement of IT technologies, there has been a constant evolution in the development of services, applications, and games for mobile phones. In order to ensure that everything functions properly, it is necessary to update the software of the device itself. However, there are occasions where this process does not go as expected and the system may encounter issues. This article provides an overview of the potential reasons why an iPhone fails to turn on after updating, as well as various solutions to resolve these problems.

Reasons

If the device is already considered "old" because of repairs or component replacements, and the iPhone doesn’t turn on after updating, the problem might lie with the overly strict autodiagnostics built into the new software. The manufacturer is aiming to limit the ability of Apple device owners to install cheaper analogs of modules and chips on their iPhones.

This is done by checking the serial number of the part, which is linked to the motherboard. However, there is a solution to this situation – it is possible to install software created by professional programmers who modify the official structure to make the necessary adjustments.

If the phone is only a few days old or you are absolutely certain of its complete originality, then there are several potential reasons for failure after the update:

• During the process of downloading operating system files, a significant amount of energy is consumed, which can cause the battery to drain before the procedure is complete and result in "bricking" of the phone.
• You may encounter a problem if the system memory chip malfunctions.
• For some unknown reason, the connection to the system vendor in your location has been lost.
• The operating system itself has crashed, either due to a factory reset or a software malfunction.
• If the device is in an updated state but fails to turn on, it is possible that the power button is not functioning properly.

Charge the battery

Hint: Inspect the USB cable carefully to determine if it is damaged or torn. This is applicable to both the cable from the charger and the one used for connecting to the computer. The phone may not work properly with Chinese-made cables, as the contact arrangement may be incorrect.

What to do to restore the software on the iPhone

Initially, we attempt the most straightforward approach, and once those steps are completed, we proceed to connect the phone to a power source using authentic accessories. It is advisable to fully charge the device to reinstate its functionality, and subsequently attempt to power it on once more. In the event that an iPhone 4, 5, or 6 fails to start, it is then necessary to investigate potential issues within the firmware or mechanical components. Nevertheless, to prevent unnecessary visits to the service center, it is worth attempting a Hard Reset as a troubleshooting measure.

Hard Reset

A common practice is to perform a standard procedure in order to address any issues such as malfunctioning, freezing, or unstable performance. Rebooting the iPhone can be done in two methods, and it is recommended to utilize both for enhanced reliability. For a more visual guide, please refer to the image provided above.

To perform a simple Hard Reset, follow these steps: press and hold the console and side power button until the device begins to reboot. This method usually resolves problems with a non-responsive device.

If these steps do not resolve the issue, proceed to more advanced troubleshooting measures by following the instructions below: Remove the existing iTunes software from your computer and reinstall it from the original source (available for download on the vendor’s official website). This step is necessary because any viruses that may have infected your PC could have affected certain files within the application, rendering it partially functional.

• Attach your iPhone to your computer and allow it to synchronize with iTunes while the device is in DFU mode.
• If you previously upgraded to iOS version 10, consider reverting back to version 9, which is known to be more stable and compatible with older devices such as the iPhone 4, 4S, and 5th generation models.

If you are unable to start your device with a normal reboot after updating iOS, it may be necessary to perform a rollback. To do this, connect your iPhone to your computer and wait for iTunes to activate. Once activated, press and hold both the "ON" and "Home" buttons until a window appears offering options to restore or reset the software. Select the "restore" option and wait for the procedure to finish.

While this method is not a guaranteed fix for all issues preventing your phone from turning on, restoring functionality is likely to be helpful at a service center.

Recommendations

When you follow all of the aforementioned suggestions, ensure that you exclusively employ authentic software for your device, accessories, and utilities. This will consequently restrict any potential issues and decrease the likelihood of having to take additional actions or incur expenses for repairs at a service center.

An effective signal that indicates a problem with the software itself is an illuminated logo during the iPhone’s charging process. Try connecting it to a reputable and functioning original device, and if the screen displays the battery icon or the apple icon, it is highly probable that the issue lies within a software malfunction.

To avoid potential issues with installing new software on your smartphone, it is recommended to research popular forums where individuals who have already installed the exact version of iOS you plan to integrate share their experiences. Additionally, it is advisable to back up all data stored on your device’s memory to prevent data loss in the event of firmware crashing or system failure during the update, which could result in a complete reinstallation of the operating system and deletion of all information on the iPhone.