People in nature - being frivolous. And sometimes they underestimate some things. If we consider the irresponsibility of people in the context of our theme, we can distinguish three types of damages to which it may lead, and to get you to part with the amount of different sizes to repair or buy a new iPhone. So, in my experience, gained from working in the service center for repair iPhone "Computers Art" , suggests three categories of damages:
- mechanical damage;
- damaged electricity;
- failures due to moisture.
Before settling on the details of each category I would like to note the following. The vast majority of people violated causality in the context of being hit by various devices. This is most likely a consequence of lack of information about their internal structure. In this article I will tell you what can happen if your phone is dropped, for example, on the pavement or on the tile floor in the kitchen.
In my work, I sometimes come across with surprise and bewilderment about the clients that we find any damage other than those which have been declared upon acceptance. For example, a client comes and brings the iPad 2 with a broken touchscreen. However, he casually mentions that after the fall he began to work less Wi-Fi. And you can see when checking before acceptance unit for repair, that near the router from three in the indicator signal is available, for example, only two. And then it turns out that broken, shards of glass blown Wi-Fi antenna, which is located under the glass on the right side of the button Home.
Or, for example, brings the iPhone client, and complains that the missing scale adjustment. And when you start to ask questions, to find out some details that could help quickly identify the problem, it turns out that the machine was in the water. And when the client reports the results of diagnosing the cause of this fault was wet and hear the answer: "Why, no! After all, it got only a couple of drops. " As you know, the problem is better to prevent than to remove their effects.
Mechanical damage
This type of damage - the most common of the three. In most cases, mechanical damages are the result of falls. Probably many of you have heard your friends are proud to talk about their iPhone as soon as they fell, and despite it not affect performance.
Indeed, you may be lucky person and your phone will fall for it completely. But more often much worse. For example, because such a fall can break glass display. And if the iPhone 3G/3GS, this glass can be changed separately, all other models of iPhone, it is glued together with a display and also change along with it. As you know, it affects the price.
I have described above is the most optimistic outcome in mechanical damage: the fault is obvious. But there is also an option, which breaks something inside the machine. What you can not see, because the detail is hidden from you body iPhone. For example, as a result of damage to the screen can be broken shards of broken glass front camera. Or in the iPad may be a damaging Wi-Fi antenna, which I mentioned earlier.
The iPhone 4 is used for the audio chip Cirrus Logic 338S0589. Illustration taken from the site ifixit.com .
In addition, as a result of falls and bumps often break down the components of the circuit board. For example, you dropped your phone and all external unit, but no sound. Or something does not work: there is only the sound of the headset, and when to call in the usual way, then the other party can not hear. All these symptoms indicate that you have a corrupted audio codec or the audio mixer (it depends on the model of your iPhone). Or have you gone Wi-Fi, because the chip was damaged, responsible for its operation. Repair of such damage is quite capable for most service centers, but the price you grieve.
Chip Murata SW SS1830010, responsible for Wi-Fi and Bluetooth in iPhone 4S. Has a ceramic substrate (instead of silicon, as usual) because of what has excellent signal / noise ratio. Illustration taken from the site ifixit.com .
The third subspecies mechanical damage - the most lamentable, in terms of impact - cracks in the main board. The fact that the motherboard iPhone has seven layers. Each has a conductive paths that connect all parts mounted on its surface. Your iPhone may fall to fail, and by the fall of the internal connections are damaged and repair them is no longer available. This phone will be easy to sell for parts, so getting to the inner layers of the board without destroying it is impossible.
Damage to electricity
iPhone and iPad are very demanding on the quality of the electric current, which they consume. The power supply that comes with them - a very complex device. That's here , you can see that there is at this power supply inside. Charging scheme, which takes advantage of Apple devices is complex. At the entrance to the charging path iPhone or iPad are two comparator compares the voltage on the D + and D-with specified reference level. This ensures good compatibility with different chargers. For example, iPad can be charged from the power supplies of the iPhone or USB port. The power supply will then be working at this time, because the iOS device it correctly classifies and switches to the appropriate mode charging.
Schematic diagram of the chargers Apple. Source DMAX14568EMAX/14568AE Datasheet.
Controller function Power iPhone 3GS performs chip 338S0533-AE. Illustration taken from the site ifixit.com .
The iPhone 4 used for this chip 338S867-A4. Illustration taken from the site ifixit.com .
As you know, aftermarket chargers in the vast majority did not meet the requirements, according to which Apple develops its own power supply. Therefore, their use can often occur any unpleasant incidents. For example, when surges may damage the power controller. For example, in this respect, it is very sensitive to voltage drops in the network elements such as chip 338S867-A4 (which serves as a power controller in the iPhone 4) and 338S0533-AE (power controller in iPhone 3GS). Therefore, when selecting a power supply buy only original products, or as devices from other manufacturers, certified Apple.
Damage caused by moisture
This type of damage is probably the worst of the three. The fact that the water in the first place disables the power components on the board. This applies to parts of the main circuit power iPhone, iPad, backlight circuit elements, various parts radio path. Do not like moisture and LCD matrix. After getting water on them on the substrate, which scatters the light under the display backlight spots appear, which then persist in most cases.
Rotten plug the camera in the iPhone 4. Moisture gets inside the phone for twelve hours before the visit to the service center. Photo provided by the service center computersart.com.ua .
To the phone began irreversible damage viscera only three hours of moisture. If no special measures, after this time your chances of recovery are reduced phone exactly half. And then it all depends on your luck and professionalism of the service center, where you ask for help.
Rust on board elements under the protective screen, which formed due to condensation. Photo provided by the service center computersart.com.ua .
Once in your iPhone into water, I recommend to turn it off and immediately put in a bag of rice, and then carry the affected device to a service center, where he was treated with a special solution. Rice - a very good absorbent and perfectly absorbs moisture. Clients, who have resorted to this method, we did not have much, but they got off lightly and parting with a moderate amount for repairs. So be careful, cautious and consult carefully with your iPhone and iPad.
