Most often, iPhone 4S owners contact smartphone repair service centers who complain about problems with the firmware. As a result, the indispensable gadget either does not turn on at all, or an error appears on the screen. Often, such breakdowns may not lead to the most pleasant consequences: loss of all personal data or a complete phone outage (in this case, iPhone recovery is not possible).
There are a huge number of reasons for such troubles. It is possible that a download error occurred or the user tried to install third-party software on the smartphone. Also, a fairly common cause of the breakdown is a hardware malfunction, which can be caused by mechanical damage or moisture entering the iPhone 4S case.
However, this does not mean that in order to “reanimate” a smartphone, you need to spend money on expensive diagnostics. There is a chance to fix your phone yourself.
So, most often, users encounter an unknown error 4005. Consider the probable reasons for the appearance of such an inscription and methods for solving the problem.
Security errors
On cell phones, as well as on laptop computers and tablets, anti-virus programs, firewalls, firewalls and other utilities are often installed to protect user data. However, when flashing or restoring an iPhone, this software may perceive manipulations with the phone as an attempt to download virus software into it. In this case, very often various errors appear on the screen (4013, 9, 4005 and others), indicating a communication failure. To avoid troubles, during the device update, you must disable all programs of this type.
Problems connecting iPhone via USB
The cause of error 4005 may be a problem with the USB cable. This is also evidenced by codes 9, 13, 1600, 1643 and others. In this situation, the most logical solution is to change the wire. If, when reconnecting, the problem is not solved, then it is necessary to check the settings of the anti-virus programs, it is possible that they have a ban on connecting third-party cables. It is also recommended to restart the iPhone and disable the firewall and firewall for a while.
Sync issues
Quite often, error 4005 occurs during the synchronization of iPhone, iTunes and a computer. This is due to the fact that part of the required files are lost during software package loading and the software is not fully updated.
In this situation, there is no need to panic, since such a problem is considered the simplest one, which any user can solve. The first thing to understand - iTunes and iPhone were developed by the same company, respectively, such failures can not lead to irreparable consequences in the form of a significant disruption to the device. Blaming the developers is also not worth it. IT technologies are a whole set of functions that must be implemented in a tiny device. Therefore, such failures are quite normal costs. If there is a 4005 error on the iPhone screen, then you can perform several simple manipulations that will help restore the iPhone without losing data.
Method 1: Reboot
Before you seek qualified help, you should try the simplest method to solve most problems. If an error occurred during the synchronization of several devices, then you need to restart both the iPhone itself and the PC. Typically, computers restart on their own, and the iPhone has to be turned off and on in forced mode. To do this, you must simultaneously hold down the power button and the Home button and wait about 10-15 seconds. After this time, a sharp shutdown of the smartphone should occur. After that, you just have to wait until the device is fully loaded and check whether the 4005 error has disappeared.
If the problem remains, then the time has come for more serious action.
Method 2: update iTunes
If an old version of the media player is installed on the smartphone, then this may well lead to similar problems. To solve them, you need to check iTunes for available updates. If they are, then you need to install them. However, it should be borne in mind that you can download any software only from the official website of the device manufacturer, in this case we are talking about Apple.
Method 3: reinstall iTunes
If, even after the procedure for updating the media player, an error 4005 continues to appear on the screen, then this may be caused by communication failures. The only solution in this situation is to completely reinstall iTunes. To do this, you must first completely remove the program from the phone. And you need to capture not only the "media combine", but also other components of Apple. This will help additional utilities that allow you to remove the entire software.
After that, you can install iTunes again.
Method 4: change the cable
About replacing the USB wire has already been written earlier. However, it is worth considering a few more features of the error caused by the cable. In some situations, the wire may simply be damaged. However, even certified Apple cables may not work correctly. Therefore, it is worth trying several different options before excluding such a cause of failure.
Method 5: restore through DFU
If all of the above methods were powerless, and the error 4005 did not disappear on the iPhone screen, then you can take a chance and restart the device in a special emergency DFU mode, which was developed by Apple in case of serious smartphone software failures.
To do this, you need to perform several steps:
- Disconnect iPhone.
- Connect the device to the computer using a USB cable.
- Launch iTunes media player on PC.
- Clamp on the smartphone first the shutdown button for 3 seconds, and then, without unclenching it, click on "Home". It takes 10 seconds to hold the key combination.
- Release the shutdown button and hold “Home” until the iPhone detects the media player.
After that, a message should appear on the screen, in which you will be prompted to perform the recovery procedure. At the end of the problem should be solved, however, in this case, most likely, there will be a complete loss of the latest data.
After completing all the manipulations, it is recommended to perform a full scan of the iPhone and computer for viruses.
To summarize
The article described the most common and effective methods for solving recovery errors, but this does not mean that they are guaranteed to work. If the problem is related to the software part, then the “reanimate” device is most often obtained independently. But in cases where hardware failures become the cause of the breakdown (for example, a failed battery), only a specialist can help, who will diagnose and find out exactly which unit needs repair.