Advice 1: How does mobile phone

Mobile phones in a short time firmly established in the life of every person. Over the last two decades the mobile phone has changed dramatically from conventional device for calls he turned into a functional device.
How does mobile phone

The phone is not just a means of communication

Mobile device can combine different functions – the means of communication, mp3 player, camera, voice recorder, radio, wi-fi etc. the Phone was, in fact, multifunctional toy for adults. And a logical question arises: how it all fits in such a small device?

Mobile phone is a rather complex device, the main part of which is a special fee. It is responsible for all tasks assigned to phone tasks. It is also commonly called a motherboard. It can be connected to different devices (camera, display, etc.) that provide user interaction with the phone.

The mechanical part of the mobile phone

As for cell phone housing, there are three basic forms slider, flip (book) and candy. There is also a flip (the flip cover that covers the keyboard) and the rotator (part of the body can be rotated relative to each other), but they are very rare.

The monoblock consists of front and rear panels. The back panel is usually combined with the battery compartment or by the battery. Phone case-clamshell has an upper and lower part, and the rotary mechanism. And the phone-slider has a slide, which is slide housing parts. A separate part of the body is considered and the display of the phone.

Keyboard in cell phones consists of two parts. The first of them visible, as a rule, plastic button, and the second hidden. It is a metal substrate, which closes the contacts of the keyboard.

An important hub mobile phone is the battery, as it ensures his work. Depending on the type of rechargeable batteries are Nickel-metal hydride, lithium polymer and lithium-ion.

Displays in mobile phones can install two types – black and white and color. Now used only colored. In the sliders or clamshells are often used in display module – a display (or two displays) on a single Board. On this circuit Board solder all the necessary components, including the dynamics of the phone.

Among the other mechanical parts – microphone, speaker, camera, vibrometric, the antenna. Modern mobile phones added some new parts, RAM, wifi module, etc.

Advice 2: How to return the money for mobile phone

It's a shame to buy an expensive mobile phone, and after a while to discover there are obvious technical marriage. However, if you find yourself in this situation, you have the right to return the spent money. How to do it?
How to return the money for mobile phone
From the purchase of defective goods, no one is immune, so in the store detail find out about the terms and conditions of the warranty, thoroughly study all documents and in no case do not throw away the receipt. Pay attention to the integrity of the buttons, no scratches, make sure that the display does not depart from the base. Upon detection of any fault, immediately ask to change the model. Better to do it now than to try to prove his innocence. Do not buy a phonewith the hands or in small shops in the markets, as it is likely that you will sell "gray" goods, and to return for it money will be very difficult.
If after some time you find fault in the new phoneand contact our store with your passport and cash cheque and write a letter of complaint. Often sellers say that after 14 days from the date of conclusion of the transaction you have no right to demand a refund. This is not so. In accordance with the law "On protection of rights of consumers" the phone is included in this group of goods for which there is no Statute of limitations for exchange if the camera is of poor quality. 14 days play a role only in the case if you are not satisfied with the size, color or other characteristics, and the phone is quite serviceable.
If store employees say that you are to blame in damage to the phoneand require examination. Since the warranty period has not expired, it needs to be done at the expense of the store. If the examiner determines that the cause of failure is defective, you may demand to return the money or give you another working model. Often, sellers simply offer you select another item by the same amount.
If you refuse to talk and not agree to refund the full cost of the phoneand contact the city Department on protection of the rights of consumers. Will be tested, and if it turns out that you are right, the money will be returned to you by a court decision.
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