1. Smartphone knowledge
A smartphone (Smartphone) is a mobile phone with a corresponding open operating system installed. Commonly used operating systems are: Symbian, iOS, Android, Maemo, MeeGo, Windows phone. Smartphone
Smartphone refers to "like a personal computer, it has an independent operating system, and users can install software, games and other programs provided by third-party service providers by themselves, and can use mobile phones to The general term for a type of mobile phone that uses a communication network to implement wireless network access."
Their applications are incompatible with each other. Smartphones are rich in functionality because third-party software can be installed.
The birth of the smartphone evolved from the Pocket PC. The earliest handheld computers did not have the call function of mobile phones. However, as users became more dependent on the personal information processing functions of handheld computers and were not accustomed to carrying both mobile phones and PPCs at all times, manufacturers changed the function of handheld computers to The system was transplanted to mobile phones, and the concept of smartphones emerged. Smartphones have more comprehensive processing capabilities than traditional mobile phones [1], such as the S60 series of Symbian operating system, Symbian S60, Symbian3, and some MeeGo operating system smartphones. However, as far as recent developments are concerned, there is a tendency for these smartphone types to merge.
Smartphones are similar in appearance and operation to traditional mobile phones, including not only touch screens but also non-touch screen numeric keyboard phones and full-size keyboard-operated phones. However, traditional mobile phones use closed operating systems developed by manufacturers themselves, which have very limited functions and do not have the scalability of smartphones.
The term "Smart Phone" is mainly used for "Feature phone". It does not mean how "smart" the phone is; From one perspective, a so-called "smart phone" is a mobile phone that can install and uninstall application software at will (just like a computer). "Feature phones" cannot install and uninstall software at will. The emergence of JAVA enabled later "feature phones" to have the function of installing JAVA applications. However, JAVA programs are operationally friendly, efficient and The operation of system resources is much worse than that of a "smart phone". Smartphones [2]
It should be noted that although the copy-paste function is considered an important function, and smartphone systems such as Symbian have long supported the copy-paste function, IOS and Windows Phone failed to implement it early on. Similar functions, fortunately, IOS and Windows Phone now support the copy and paste function.
2. Basic knowledge of smartphones
What is a smartphone? To put it simply, it is a simple "1+1=" formula, "PDA + mobile phone = smartphone" . Broadly speaking, in addition to the call function of a mobile phone, a smartphone also has most of the functions of a PDA, especially personal information management and browser and email functions based on wireless data communication. Smartphones provide users with sufficient screen size and bandwidth, which is not only convenient to carry around, but also provides a broad stage for software operation and content services. Many value-added services can be launched here, such as: stocks, news, weather, transportation, commodities, Application downloads, music picture downloads, and more. Smartphones integrating 3C (puter, munication, sumer) will surely become the new direction of mobile phone development in the future.
What about smartphones? A popular saying is "Wenquxing + mobile phone = smart phone". A comparison will tell that there is a big difference between the Pocket PC and Wenquxing. In terms of functional applications, the Pocket PC has its own obvious advantages.
In fact, the easiest thing to distinguish between smartphones and smartphones is "whether they have an operating system."
Let's take a look at several necessary conditions for becoming a smartphone:
1. It has all the functions of an ordinary mobile phone and can make normal calls, send text messages and other mobile applications.
2. Have the ability to wirelessly access the Internet, that is, it needs to support GPRS under the GSM network or CDMA 1X or 3G network under the CDMA network.
3. Equipped with PDA functions, including PIM (Personal Information Management), calendar notes, task arrangements, multimedia applications, and web browsing.
4. It has an open operating system. On this operating system platform, more applications can be installed, so that the functions of smart phones can be infinitely expanded.
Since only mobile phones with operating systems can be called smartphones, what are the types of operating systems? Since the birth of the smartphone is related to the handheld computer, its operating system will definitely be related to the handheld computer. Symbian, Windows CE, Palm, and Linux are still the four major camps. However, unlike the situation where Palm and Windows CE compete for hegemony in PDA operating systems, Symbian has taken the lead in smartphone operating systems. Sony Ericsson, Nokia, Companies such as Motorola and Panasonic basically use Symbian-based operating systems.
3. Some basic knowledge about mobile phones
(1) The professional terminology of flashing mobile phones refers to changing or replacing some languages ??and pictures that originally exist in the mobile phone through certain methods. , ***, software or operating system.
Generally speaking, flashing is to reinstall the system of a mobile phone. Flashing the phone can make the phone's functions more complete and restore the phone to its original state.
Under normal circumstances, the system of an Android phone is damaged, resulting in functional failure or failure to boot. It is usually restored by flashing the phone. Flashing can be official or unofficial.
(2) Jailbreaking "Jailbreaking" refers to bypassing many of the restrictions Apple imposes on the operating system on its devices, thereby allowing "Root access" to the underlying operating system. Simply put, "jailbreaking" allows iPhone users to download other unofficial applications from outside the Apple App Store or customize the user interface.
Literally speaking, it is like a prisoner escaping from the deep prison cell and gaining freedom; and there are no restraints. (3) ROM The ROM in the smartphone configuration refers to EEProm (Electrically Erasable Writable Read-Only Memory), which is similar to a computer's hard drive. How much things can be stored in the mobile phone depends on its capacity.
The base package + update package are collectively referred to as a ROM package. Generally divided into two categories, one is the official original ROM from the mobile phone manufacturer, which is characterized by stability and has different functions customized by the manufacturer; the other is the native ROM compiled by development enthusiasts using the officially released source code. The characteristic of ROM is that it can be adjusted according to the specific needs of users, making the ROM more in line with the usage habits of users in different regions.
For example, Android rom, Android (Android) is an open source operating system based on Linux, mainly used in portable devices. The Android operating system was originally developed by Andy Rubin and initially supported mobile phones.
In 2005, it was acquired and invested by Google, and the Open Handset Alliance was established to develop and improve it, and gradually expanded to tablet computers and other fields. Android's main competitors are Apple's iOS and RIM's Blackberry OS.
(4) Pixel "Pixel" is composed of the letters of the two words image (foreign language: Picture) and element (foreign language: Element). It is a unit used to calculate digital images. Just like photography photos, digital images also have continuous shades of light and shade. If we enlarge the image several times, we will find that these continuous tones are actually composed of many small square dots of similar colors. These small square dots make up the image. The smallest unit is "pixel". This is the smallest graphic unit that can be displayed on the screen, usually a single stained point.
The higher the pixel, the richer the color palette it has, and the more realistic it can express the color.
(5) Flash memory (Flash Memory) is a long-life non-volatile memory that can retain stored data information even when the power is off. Data is deleted not in units of single bytes but in units of bytes. Fixed block unit (Note: NOR Flash is byte storage.)
The block size is generally 256KB to 20MB. Flash memory is a variant of electronically erasable read-only memory (EEPROM). The difference between flash memory and EEPROM is that EEPROM can be deleted and rewritten at the byte level instead of erasing the entire chip. Most chips of flash memory require block erasing. remove.
Because it can still save data when powered off, flash memory is usually used to save setting information, such as saving data in the computer's BIOS (Basic Input Output Program), PDA (Personal Digital Assistant), and digital cameras. wait. (6) CPU Mobile phone CPU is one of the functions of mobile phones that is ignored by shoppers in daily life. In fact, the most important thing about a smartphone with excellent performance must be its "core", which is the CPU. Just like a computer CPU, It is the control center system of the entire mobile phone and also the control center of the logical part.
The microprocessor achieves control purposes by running the software in the memory and calling the database in the memory. 1. Advantages of Texas Instruments: low frequency, high energy and less power consumption. It is a must-have CPU for high-end smartphones. Disadvantages: It is expensive, and the corresponding mobile phone prices are also very high. The performance of OMAP3 series GPU is not high, but the OMAP4 series has been significantly improved. Data processing capabilities are weak.
2. INTEL Advantages: High CPU frequency, fast speed Disadvantages: Power consumption, low performance per frequency 3. Qualcomm Advantages: High frequency, excellent data processing performance, and the most extensive product line Figure, supports various terminals including smartphones, tablets, smart TVs, etc., can support all mainstream mobile operating systems, and supports 3G/4G network standards. Disadvantages: weak graphics processing capabilities and large power consumption. 4. Samsung advantages: low power consumption, Samsung Hummingbird S5PC110 has the strongest single core, good DSP matching, and strong GPU performance. Disadvantages: Samsung Orion dual-core has a big heating problem, and is equipped with MALI400 GPU with a single composition and poor compatibility. 5. Marvell advantages: It inherits and utilizes the performance of PXA very well. Disadvantages: high power consumption. NVIDIA Advantages: the earliest dual-core CPU on the market. It is equipped with Geforce ULP, which is small in area, strong in performance and low in power consumption. Disadvantages: Tegra2 removed NEON due to power consumption issues. This leads to big video decoding problems and supports few hard decoding formats. 7. Huawei’s advantages: It is the smallest quad-core A9 architecture processor in the industry in 2012.
It is a high-performance CPU designed independently by Huawei. Disadvantages: poor compatibility (7) Snapdragon is a highly integrated "all-in-one" mobile phone launched by Qualcomm. The processor series platforms cover entry-level smartphones to high-end smartphones, tablets and next-generation smart terminals. Snapdragon is based on a microprocessor core customized based on the ARM architecture and combines industry-leading 3G/4G mobile broadband technology with powerful multimedia functions, 3D graphics functions and GPS engines.
On February 20, 2012, Qualcomm officially designated the Chinese name of the Snapdragon series processor as "Snapdragon". As an emerging technology, CDMA CDMA2000 is rapidly gaining popularity around the world and has occupied 20% of the wireless market.
As of 2012, the number of CDMA2000 users worldwide has exceeded 256 million, and 156 operators in 70 countries have commercialized 3G CDMA services. Dozens of OEMs around the world, including Amtrust Communications Technology Co., Ltd., which has a license authorized by Qualcomm, have launched EVDO mobile smart terminals. In 2002, Qualcomm's chip sales hit a record high; from 1994 to the present, Qualcomm has launched EVDO mobile smart terminals.
4. Knowledge about mobile phones
Mobile phones, usually called mobile phones, were also commonly known as mobile phones in the early days. They are portable phone terminals that can be used in a wide range. The earliest It was invented by Soviet engineer Leonid Kuprijanovich in 1957.
So far it has developed into the 4G era.
As a major invention of human science and technology, few of them can enter thousands of ordinary families around the world and be widely used by millions of ordinary people like mobile phones.
The mobile phone was first invented by Soviet engineer Kuprianovich in 1957. In 1958, the Voronezh Institute of Communication Sciences of the Soviet Union began to develop the world's first fully automatic mobile phone communication system "Altai" (Алтай). In 1963, the "Altai" system conducted regional testing in Moscow. From the end of 1969, the "Altai" system officially provided mobile services in more than 30 cities in the Soviet Union.
Mobile phones are divided into smart phones (Smart phones) and non-smart phones (Feature phones). Generally speaking, smart phones have better performance than non-smart phones, but non-smart phones are more stable than smart phones. Most non-smart phones Mobile phones and smartphones generally use CPUs based on the British ARM company's architecture. However, the main frequency of a smartphone is higher, the running speed is faster, and the smartphone handles program tasks faster.
It is more convenient for daily life (for example: Nokia n81 is clocked at 369 MHz), while the clock speed of non-smartphones is lower and runs slower (for example: Nokia 5000 is clocked at 50 MHz) Hertz) Smartphone refers to "like a personal computer, with an independent operating system. Most of them are large-screen machines with touch capacitive screens, and some are resistive screens. They are powerful and practical. They can be used by users A general term for mobile phones that use self-installed software, games and other programs provided by third-party service providers to continuously expand the functions of mobile phones and achieve wireless network access through mobile communication networks."
To put it simply, it is a simple "1+1=" formula, "PDA+mobile phone=smartphone". Broadly speaking, in addition to the call function of a mobile phone, a smartphone also has most of the functions of a PDA, especially personal information management and browser and email functions based on wireless data communication.
Smartphones provide users with sufficient screen size and bandwidth, which are easy to carry around and provide a broad stage for software operation and content services. Many value-added services can be launched, such as: stocks, news, weather, transportation, commodities, application downloads, music and picture downloads, etc.
Motorola mobile phone (9 photos) In April 1973, the famous American Motorola engineering technician "Martin Cooper" developed the first mobile phone for civilian use in the United States. Due to the strong propaganda capabilities of the United States, " Martin Cooper" is billed as "the father of the modern mobile phone." Motorola Inc was founded in 1928.
In 1947, it was renamed Motorola and was used as a trademark from the 1930s. Headquartered in Schaumburg, Illinois, USA, a suburb of Chicago.
One of the world’s Fortune 100 companies, it is a global leader in chip manufacturing and electronic communications. Nokia Nokia was founded in Finland in 1865. After a century and a half of development, it has become the world's largest mobile phone supplier. Nokia is the global leader in mobile communications.
Advantages of Nokia mobile phones: user-friendly operation (S40), complete product line, good quality, strong signal, strong practicality in daily life, and good photo effects. Elderly mobile phones are deeply loved by the elderly. Disadvantages of Nokia mobile phones: the earpieces have small sound and mediocre appearance. The sound quality of the loudspeakers of most mobile phones is far inferior to that of domestic phones. High-end smartphones (Symbian system) have been embraced by Microsoft (Windows Phone) in 2011.
On February 11, 2011, Nokia cooperated with Microsoft and released WP system mobile phones that began to enter the market. Nokia will help drive and define the future of Windows Phone.
Nokia will provide Microsoft with expertise in hardware design and language support, and help Windows Phone phones enrich their price positioning, gain more market share, and enter more regional markets.
SAMSUNG is the abbreviation of Samsung Group, South Korea's largest enterprise group. The group includes 44 subsidiaries and several other legal entities. It has established nearly 300 legal persons and offices in nearly 70 countries and regions, with a total of 196,000 employees. People, business involves electronics, finance, machinery, chemistry and many other fields.
As the second largest mobile phone supplier, Samsung has always been a trendsetter in the world's communications market. Advantages of Samsung mobile phones: rich product lines, large and clear screens, more colorful colors, and generally higher configurations.
Samsung is now the world's largest mobile phone manufacturer and the world's largest electronics company by revenue, with a global corporate market value of US$150 billion in 2011. BlackBerry is a portable wireless communication device brand of Canadian RIM Communications Company, founded in 1999.
It features support for push-based email, mobile phone calls, text messages, Internet fax, web browsing and other wireless information services. Newer models also include personal digital assistant functions such as phone books, calendars, etc. and voice communication functions.
Most BlackBerry devices are equipped with a small but complete QWERTY keyboard to facilitate user input. Advantages of BlackBerry: A complete platform for wirelessly extending business information, equipped with advanced security features to ensure information integrity and confidentiality, and easy to deploy, manage and use.
Disadvantages of BlackBerry: There are relatively few software applications, and the interface is not gorgeous. The scroll wheel and trackball are both vulnerable parts, and it is troublesome to transfer things from the computer to the mobile phone. Apple, the full name of Apple Inc., formerly known as Apple Computer (Apple puter), announced the name change at the Macworld Expo in San Francisco on January 9, 2007.
Headquartered in Cupertino, California, the core business is electronic technology products. The world's top computer system comes from Apple, with a global smartphone share of 17.1%. (The mobile phone produced by Apple is called iPhone, see the iPhone entry for details).
Advantages of Apple mobile phones: high entertainment, stable system, good performance, fashionable and beautiful, outstanding screen, many applications and good quality. Disadvantages of iphone5: closed system, high price, and cumbersome data transmission.
The iPhone Apple Industry Line was launched on June 29, 2007, and the iPhone was released on July 11, 2008.
5. What is the knowledge about smart phone hardware?
1. Some technical knowledge points explain NFC technology, gravity sensor, network mode, distance sensor, light sensor, operating system, Bluetooth, CPU type, screen color, video format, wireless AP screen material electronic compass expansion card flight mode data service customized machine modified machine built-in Wi-Fi screen size camera pixel D LNA technology WLAN function 2. Hardware explanation 1. Operating system The current mainstream operating systems include Apple's IOS, Google's Android ( Android), Microsoft WP and BlackBerry.
There are other operating systems: firefox OS, Samsung Tizen, PalmOS, Sailfish OS, Ubuntu OS, and Xiaomi Meizu’s pseudo-Android system. 2. Camera The camera is divided into front camera and rear camera.
For cameras, the main requirement is excellent imaging effects. The effect of our digital camera with 3.2 million pixels will definitely not be worse than the effect of 5 million pixels on mobile phones, because the camera needs to be considered. The photosensitive element and material, aperture, etc. But we will know that the standard of pixels is actually determined by the size of the imaging resolution.
3. Battery Battery capacity has also become a starting point for purchasing mobile phones. After all, the advent of the multimedia era has led to the application of mobile phone entertainment functions and the increase in the frequency of mobile phone use. Battery capacity has become a criterion for battery life. The capacity unit of mobile phone battery is mAh, or wH. The two can be calculated and interchanged, because the voltage of mobile phone battery is generally 3.7V. For safety, the charger must be original! 4. Mobile phone network standards mainly include China Mobile: GSM, TD-SCDMA, TD-LTE, China Unicom: GSM, WCDMA, and Telecom: CDMA2000.
5. Antenna chips mainly include communication signals, GPS navigation antenna chips, WIFI wireless network chips, NFC near-field transmission chips, Bluetooth chips, and infrared chips (obsolete). Having these chips will bring problems to mobile phones. More features standard. Wi-Fi is an industry term issued by an organization called "Wireless Ethernet Compatibility Alliance" (Wireless Ether patibilityAlliance, WECA), which is translated into Chinese as "Wireless Compatibility Certification".
It is a short-range wireless transmission technology capable of supporting radio signals for Internet access within a range of several hundred feet. With the development of technology and the emergence of standards such as IEEE 802.11a and IEEE 802.11g, the IEEE 802.11 standard is now collectively referred to as Wi-Fi.
From an application level, to use Wi-Fi, users must first have a Wi-Fi compatible client device. Wi-Fi is a technology that can connect terminals such as personal computers and handheld devices (such as PDAs and mobile phones) to each other wirelessly.
Wi-Fi is a brand of wireless network communication technology owned by the Wi-Fi Alliance. The purpose is to improve the interoperability between wireless network products based on the IEEE802.11 standard.
Nowadays, most people confuse Wi-Fi and IEEE 802.11. Wi-Fi is even equated with wireless Internet.
6. Bluetooth is a radio technology that supports short-distance communication between devices (generally within 10m). It can conduct wireless information exchange between many devices including mobile phones, PDAs, wireless headsets, laptops, related peripherals, etc.
The use of "Bluetooth" technology can effectively simplify the communication between mobile communication terminal devices, and can also successfully simplify the communication between the device and the Internet, so that data transmission becomes faster and more efficient, providing a Wireless communication broadens the road. Bluetooth adopts a decentralized network structure and fast frequency hopping and short packet technology, supports point-to-point and point-to-multipoint communication, and works in the globally common 2.4GHz ISM (ie Industrial, Scientific, Medical) frequency band.
Its data rate is 1Mbps. The time division duplex transmission scheme is used to achieve full-duplex transmission.
Bluetooth 4.0 technical specification Bluetooth 4.0 includes three sub-specifications, namely traditional Bluetooth technology, high-speed Bluetooth and new Bluetooth low energy technology. The improvements of Bluetooth 4.0 are mainly reflected in three aspects, battery life, energy saving and device types.
It has many advantages such as low cost, cross-vendor interoperability, 3 millisecond low latency, ultra-long distance of more than 100 meters, AES-128 encryption, etc.; in addition, the effective transmission distance of Bluetooth 4.0 has also been improved. The effective transmission distance of Bluetooth version 3.0 is 10 meters (about 32 feet), while the effective transmission distance of Bluetooth 4.0 can reach 100 meters (about 328 feet).
7. CPUCPU is the English abbreviation of Central Processing Unit, which is generally composed of logical operation unit, control unit and storage unit. The CPU of a mobile phone is simply the central processing unit. The so-called central processing unit is its core part (the logical part). When the mobile phone is turned on and performs other tasks, the central processor issues commands and controls the work of each component. Of course, When starting up, the crystal oscillator needs to provide a frequency signal to run, and it also needs power supply, and then the program can be called out from the memory.
The CPU is the main chip; its main frequency and core determine the computing speed of the mobile phone! A powerful CPU can bring higher computing power to mobile phones. At present, mobile phone CPU architectures mainly include ARM architecture and X86 architecture. As far as mobile CPUs are concerned, ARM is in a dominant position.
Manufacturers that produce ARM architecture include: Apple (Samsung OEM), Samsung, Nvidia, Qualcomm, and TI; while Intel is the only one that produces X86 architecture. 8. RAMRAM (randomaccess memory) random access memory, also called running memory (referred to as running memory).
The contents of the storage unit can be taken out or stored at will as needed, and the access speed has nothing to do with the location of the storage unit.
This kind of memory will lose its storage content when the power is turned off, so it is mainly used to store programs that are used for a short period of time.
The larger the RAM, the faster the phone runs and the smoother the multitasking mechanism. The system speed of the mobile phone and the speed of the program running mainly depend on the size of the memory (RAM).
9. ROMROM (Readonly Memory) read-only memory. As the name suggests, this kind of memory can only be read, and cannot be read and written at any time like RAM.
It only allows one write opportunity after production. Once the data is written, it cannot be changed. Another feature is that the data inside the memory will not be lost after power failure and can be stored for hundreds or even thousands of years.
ROM is storage memory, which is used to install system programming and some input media files. It is generally equivalent to the C drive of a computer. So the bigger this thing gets, the more some restricted program can be written.
Then the function can get more storage space accordingly. 10. GPUGP.
6. Knowledge about smartphones
Smartphones (also known as smart phones, smart phones, English: Smartphone) are for those whose computing power and functions are higher than those of traditional feature phones. A more sexual title for a stronger phone.
The most commonly used operating systems for smartphones are: Symbian (delisted), Windows Phone, Android, IOS and BlackBerry OS, but the application software between them is incompatible with each other. Because smartphones can be installed with third-party software just like PCs, they are feature-rich and can be continuously expanded.
Smartphones have five major characteristics: The ability to wirelessly access the Internet: that is, they need to support GPRS under the GSM network or CDMA 1X or 3G (wcdma, cdma-evdo, TD-scdma) network under the GSM network, Even 4G (HSPA+, FDD-LTE, TDD-LTE). PDA functions include PIM (Personal Information Management), calendar notes, task arrangements, multimedia applications, and web browsing.
The open operating system has an independent core processor (CPU) and memory, which can install more applications, so that the functions of the smartphone can be infinitely expanded. Humanization can expand machine capabilities based on individual needs.
According to personal needs, the built-in functions of the machine can be expanded in real time, as well as software upgrades, intelligent identification of software compatibility, and humanized functions synchronized with the software market. Powerful functions: strong expansion performance and multiple third-party software supports.
Disadvantages: The price is generally high and the ease of use is poor. Novices need to adapt slowly. For those friends who are not very familiar with computers and mobile phones, if you want to play with a smartphone, you can't do it without spending some time to study it. After all, today's smartphone is like a smaller version of a PC.
Generally speaking, ordinary mobile phones have very user-friendly 9-square and 12-square interfaces, making it easy for users to get started. Smartphones can freely customize the interface and are more flexible.
Due to the convenience of smart phones, they soon became popular all over the world. Their manufacturing costs are also higher than non-smart phones. With the improvement of manufacturing technology and the price reduction of electronic components, the price of smart phones has become very cheap. .
7. Mobile phone knowledge collection
Date of launch: July 2009 Network format: GSM/GPRS/WCDMA/EDGE/HSDPA Applicable frequency: 850/900/1800/1900MHz Weight: 90 grams Size/volume: 108*46*15mm Optional colors: blue, red, black Screen parameters: 16 million colors TFT color screen; 240*320 pixels, 2.0 inches; Operating system: Symbian v9.3, S60 third FP2 platform processor: ARM 11,369 MHz Memory capacity: 140MB Talk time: 210 minutes Standby time: 250 hours Features of this machine: Music phone 3G mobile phone Smart phone Camera material: CMOS Screen material: TFT Appearance style: Candy bar Time on the market: 2009 April Multimedia Entertainment "Bluetooth A2DP Stereo" Video playback: supports 3GP, MP4, RM file playback Music playback: supports MP3, M4A, eAAC+ and WMA music format FM radio: FM stereo radio, supports RDS, visual radio function Headphone jack: 3.5mm headphone jack Flash playback: Macromedia Flash Lite 3.0 Camera: built-in camera pixels: 2 million pixels secondary camera pixels: supported sensor type: CMOS Flash: built-in; LED flash Zoom mode: digital zoom Photo resolution: multiple photo resolution options Continuous shooting: Support shooting mode: Multiple shooting modes to choose Photo effects: Support photo quality: Multiple photo quality options Video shooting: Video shooting with sound; QVGA resolution video shooting Network data "Unicom Customization" "Wireless Modem" "Support WWW browsing 』『Support WAP browsing』『E-Mail』『U disk function』 Data cable interface: microUSB 2.0 interface Bluetooth interface: v2.0, support A2DP Multimedia card expansion: support microSD card expansion, up to 8GB Java expansion: Java MIDP 2.1 instant Communication: Yahoo Messenger basic functions "*** ***" "MP3 ***" "Incoming call *** identification" "Incoming call picture identification" "Scene mode" "Standby picture" "Graphic menu" "Theme mode" "File" Manager‖ 『Chinese input』 『Chinese SMS』 『EMS SMS』 『Multimedia SMS』 『Group SMS』 『Super long SMS』 『Voice dialing』 『TTS text reading』 『Phone address book』 『Address book group』 『Call Recording‖ 『Hands-free calling』 『Airplane mode』 Personal assistant 『Recording』 『Alarm clock』 『Calendar』 『Calculator』 『Stopwatch』 『Notepad』 『Memo』 『Schedule』 『World clock』 『Unit conversion』 『Currency Conversion』