Mobile Phone Repair And Maintenance Pdf Download

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What Does Mobile Phone Mean?

A mobile phone is a wireless handheld device that allows users to make and receive calls. While the earliest generation of mobile phones could only make and receive calls, today’s mobile phones do a lot more, accommodating web browsers, games, cameras, video players and navigational systems.

Also, while mobile phones used to be mainly known as “cell phones” or cellular phones, today’s mobile phones are more commonly called “smartphones” because of all of the extra voice and data services that they offer.

A mobile phone, cellular phone, cell phone, cellphone, handphone, or hand phone, sometimes shortened to simply mobile, cell or just phone, is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area

What is the purpose of a mobile phone?

The cellphone’s main purpose is to keep people connected, regardless of the distance that separates them. Cellphones, much like traditional phones, allow you to place and receive calls.


There are three categories of mobile phones: basic phones, feature phones, and smartphones. Smartphones are equipped with a QWERTY keypad. The mobile phone is primarily a communication device that uses voice, SMS, or MMS.

Types of Mobile Phones

Smart Phones

Smart phones are high specification phones that operate like miniature computers. They can usually do tasks like connect to the internet and receive emails.

Recent examples of smart phones are the Apple iphone Blackberrys and Google Android phones.

Camera Phones

Camera phones come with a built in camera. Some new camera phones are reaching the 12 megapixel mark, though a standard model will frequently between 2 and 8 megapixels.

Music Phones

Music phones will ideally have a good mp3/aac audio player and enough memory to hold a reasonable amount of songs. Always make sure that your phone has plenty of onboard/included memory, or is upgradable to have more memory via an SD/memory card slot. Ideally you will want at least 1-2gb, though it is possible to get up to 16gb.

3G Phones

Phones designed to work on the 3G system. 3G opens up faster communication and browsing speed. Phones frequently feature internet browsing and video call.


Any new smartphone has a gimmick. Whether it’s wireless charging, fingerprint scanning or even eye-tracking, there’s always an amazing feature you “can’t live without.” But let’s be honest: many of those features you really can live without.

On the other hand, some of the futuristic technology available in next-generation smartphones is really useful. But which features do you need in your toolbox and which are just the icing on the cake? This definitive list ranks 10 useful features your smartphone needs to have.

1. A long-lasting battery

Your smartphone could have a shrink-ray or turn lead into gold and it would still be useless without juice. There are ways to boost the battery life of your gadget, but at the end of the day a larger battery is going to last you longer.

The Droid Maxx is the undisputed king of batteries. It will get you close to 48 hours of use. The Galaxy Note 3 has a respectable battery life at 12-16 hours of use, but it’s still well behind the Maxx. The iPhone 5S is around 10 hours and the Samsung Galaxy S4 brings up the rear at 9 hours.

2. Warp-speed processing

Speed is still the ultimate prize in the smartphone arms race. You notice when apps lag or when swiping takes an eternity.

The iPhone 5s is the fastest smartphone on the market. Its A7 chip is even light years ahead of blazing fast phones like the Samsung Galaxy S4 or the surprisingly quick Motorola Moto X. But don’t despair if your phone feels a little sluggish — there are ways to speed it up.

3. Crystal-clear display

Smartphones are as much about enjoying media as they are about communicating. You watch movies, play games and view photos on your mobile screen and you want the crispest display around.Get the Coronavirus Watch newsletter in your inbox.

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In this case that award goes to the Samsung Galaxy S4. It has the best resolution and most pixels per inch. The LG G2 and Nokia Lumia 1020 are close behind, but it’s Samsung’s super AMOLED display technology that sets it ahead.

While the screen on the iPhone 5s and 5c can’t match the size or pixel density of their competitors, it’s still a solid high-resolution display and many people prefer it for its color accuracy.

4. A great camera

You don’t have to be a pro photographer to see the difference between modern phone cameras and the ones on your old flip-phone. A great camera is important for more than just great photos. You can use your camera for some surprising other things, like visual search.

Nokia’s Lumia 1020 includes an elite ZEISS lens, image stabilization and a whopping 41 megapixels. It’s clearly the best camera phone because it’s more camera than phone!

The iPhone 5s and the HTC One are also very respectable shooters. Their image sensors have larger pixels, which gives you better color range and excellent low-light images.

5. NFC

Near Field Communications allows your smartphone to transmit data to other phones and tablets in the vicinity. It’s really handy for sharing pictures and music. You can even use it to pay at stores and restaurants. Plenty of great Android and Windows phones offer NFC, but not Apple.

6. Multiple windows

You’d never settle for seeing just one window on your computer, why would you on your phone? Samsung Galaxy phones, as well as LG’s G2, Optimus and Enact are superb at letting you see multiple apps at once. Other Android phones and the iPhone stick to displaying a single app at a time.

7. Plenty of storage space

Most smartphones come with anywhere between 16 and 32 gigabytes of storage. Extra space is a nice luxury, but these days you’ll be saving most of your media in the cloud.

8. Infrared remote control

How cool would it be to control your TV with your smartphone? You’ll never search for the remote again. Phones like the HTC One and Samsung Galaxy S4 include Infrared transmitters as well as apps to help you control your TV. Of course, there are third-party infrared add-ons for the iPhone and other Android phones.

9. Fingerprint sensor

Apple’s most gabbed-about feature on the new 5s was definitely the fingerprint sensor. It’s not really any more secure than traditional lockscreen passcodes, but it does save you time. The HTC One Max Android phone also has one, but few other phones do at this time.

10. Wireless charging

This is a handy feature for those of you who don’t want to plug in your phone. Just set it down and it’s charging. And don’t worry; wireless charging is perfectly safe.

Mobile technology

Advantages and disadvantages of mobile technology


Mobile technology is indispensable in the modern workplace. Due to its versatility, it offers a range of benefits, but also comes with considerable risks to the business. It is essential to consider both advantages and disadvantages of using mobile technology in business.

What is mobile technology?

Mobile technology is exactly what the name implies – technology that is portable. Examples of mobile IT devices include:

  • laptop, tablets and netbook computers
  • smartphones
  • global positioning system (GPS) devices
  • wireless debit/credit card payment terminals

Portable devices utilise many different communications technologies, including:

  • wireless fidelity (Wi-Fi) – a type of wireless local area network technology
  • bluetooth – connects mobile devices wirelessly
  • data networking services for mobile phones – such as 3G, 4G and 5G wireless cellular technologies, global system for mobile communications (GSM) and general packet radio service (GPRS) data services
  • dial-up services – data networking services using modems and telephone lines
  • virtual private networks – secure access to a private network

These technologies enable us to network mobile devices, such as phones and laptops, to our offices or the internet while travelling or working from remote locations.

Advantages of mobile technology

Benefits of using mobile technology in business can manifest in:

  • higher efficiency and productivity of staff
  • the quality and flexibility of service you offer your customers
  • the ability to accept payments wirelessly
  • increased ability to communicate in and out of the workplace
  • greater access to modern apps and services
  • improved networking capabilities

Mobile devices can link you directly into the office network while working off-site. For example, you could remotely:

  • set up a new customer’s account
  • access existing customer records
  • check prices and stock availability
  • place an order online

Rapid developments in cloud technologies are boosting the use of mobile devices in business, supporting more flexible working practices and accessing services over the internet. For more information, see cloud computing.

Disadvantages of mobile technology

Main disadvantages that come with the use of mobile technology in business include:

  • Costs – new technologies and devices are often costly to purchase and require ongoing maintenance and upkeep.
  • Workplace distractions – as the range of technologies and devices increases, so does the potential for them to disrupt productivity and workflow in the business.
  • Additional training needs – staff may need instructions and training on how to use new technology.
  • Increased IT security needs – portable devices are vulnerable to security risks, especially if they contain sensitive or critical business data.

If you are using mobile devices for business, you should take precautions to ensure that the devices, and the data they can access, remain safe.


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