Oppo A57 Mobile Phone User Manual
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Feb 10, 2017 Color OS is the custom ROM from Oppo on top of Android. Here is a quick overview of Color OS, its features, tips and tricks on Oppo A57. Stay tuned to Techniqued for the latest in mobile. There're some OPPO Mobile Phone Schematic Diagrams PDF above the page. The OPPO brand began its history in 2004. In 2005, OPPO launched the first MP3 player in the Chinese market and the first model of a high-end DVD player in the US 2006 - Launch of the category of portable video players 2008 - release of the first mobile phone 2009 - OPPO went to Thailand.
Manual-User-Guide.com > Oppo phones › Specs Oppo A57
| Main display: IPS TFT 16M colors 720 x 1280 px (5.20″) 282 ppi |
| Android 6.0 Marshmallow |
| Qualcomm Snapdragon 435 8940 1,40 GHz [Number of cores: 8] |
| Li-Ion 2900 mAh |
| Internal memory: 32 GB |
| RAM memory: 3 GB |
| 13 Mpx, 4160x3120 px |
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| Dimensions: | 149,1 x 72,9 x 7,65 mm |
| Weight: | 147 g |
| DualSIM: | Yes |
| GSM frequencies: | 850/900/1800/1900 |
| Standard UMTS: | 850/900/1900/2100 |
| Standard battery: | Li-Ion 2900 mAh |
| Stand-by (max.): | 3G: 230 h |
| Talk time (max.): | 2G: 23,7 h |
| Internal memory: | 32 GB |
| RAM memory: | 3 GB |
| Memory cards: | microSD, microSDHC, microSDXC, max 128 GB |
| Operating system: | Android 6.0 Marshmallow |
| Processor: | Qualcomm Snapdragon 435 8940 1,40 GHz Number of cores: 8 |
| GPU: | Adreno 505 |
| Fingerprint scanner: | Yes |
| Main display: | IPS TFT 16M colors 720 x 1280 px (5.20″) 282 ppi |
| Touchscreen: | Yes |
| Digital camera: | 13 Mpx, 4160x3120 px |
| Secondary camera: | 16 Mpx, 4608x3456 px |
| Flash: | Yes, LED |
| Video: | H.263, H.264, MPEG4 - 30 fps, 1280x720 |
| MP3: | Yes |
| Radio: | Yes |
| Dictionary: | Yes |
| EMS: | - |
| MMS: | Yes |
| Speakerphone: | Yes |
| Voice dial: | Yes |
| Call forwarding: | Yes |
| e-mail client: | Yes |
| RSS Reader: | Yes |
| IrDA: | - |
| Bluetooth: | Yes, v4.1 |
| GPRS: | Yes |
| EDGE: | Yes |
| WiFi: | Yes, v802.11 b/g/n |
| Hotspot WiFi: | Yes |
| DLNA: | - |
| WAP: | Yes, v2.0 |
| xHTML: | Yes |
| HSCSD: | - |
| HSDPA: | Yes, 42,20 Mbit/s |
| HSUPA: | Yes, 5,76 Mbit/s |
| HSPA: | Yes |
| HSPA+: | Yes |
| LTE: | Yes |
| NFC: | - |
| WiMAX: | - |
| USB | Yes, v2.0 OTG |
| HDMI | - |
| GPS: | Yes |
| GLONASS: | Yes |
| Push To Talk: | - |
| Java: | Yes, ART |
| Calendar: | Yes |
| Watch: | Yes |
| Recorder: | Yes |
| Alarm: | Yes |
| Stopwatch: | Yes |
| Organizer: | Yes |
| Calculator: | Yes |
| Polyphony: | Yes |
Mobile terms glossary
Dual-SIM - As a SIM links a phone to a specific carrier (service provider), billing account, and phone number, a dual-SIM phone can be linked to two different phone numbers associated with two different billing accounts. Those accounts and phone numbers can be with different carriers, and even in different countries.
One common use is to use one phone with both a business phone number (and account and a separate personal line. Another use is to have accounts with carriers in two different countries, in order to take advantage of favorable rates for local versus international calls, or to permit favorable rates for people calling you, by have local phone numbers in two countries.
GSM stands for Global System for Mobile Communication and is the most popular 2G mobile phone standard in the world.
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GSM is used by about 80% of all mobile phones - approximately 2 billion people across more than 212 countries.The widespread use of the GSM standard has made it easy for most mobile phone users to use their phones overseas thanks to roaming agreements between operators using the same GSM standard.
GSM - then labelled Groupe Spécial Mobile was originally conceived back in 1982 as a European standard for mobile phones. The first GSM network went live in 1992 in Finland.
GSM introduced the concept of the SIM card (Subscriber Identity Module card) - a detachable smart card that lets users swap their phone number and contacts between handset.3G - Analog cellular phones were the first generation while digital marked the second generation.3G is loosely defined, but generally includes high data speeds, always-on data access, and greater voice capacity.
The high data speeds are possibly the most prominent feature, and certainly the most hyped. They enable such advanced features as live, streaming video.
There are several different 3G technology standards. The most prevalent is UMTS, which is based on WCDMA (the terms WCDMA and UMTS are often used interchangeably).
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The GPU (Graphics Processing Unit) is a specialized circuit designed to accelerate the image output in a frame buffer intended for output to a display.GPUs are very efficient at manipulating computer graphics and are generally more effective than general-purpose CPUs for algorithms where processing of large blocks of data is done in parallel.
Modern smartphones are equipped with advanced embedded chipsets that can do many different tasks depending on their programming. GPUs are an essential part of those chipsets and as mobile games are pushing the boundaries of their capabilities, the GPU performance is becoming increasingly important.
Bluetooth is a low-power wireless networking technology operating in the 2.4 GHz unlicensed Industrial, Scientific and Medical (ISM) band. There are two classes of Bluetooth device — Class 1 devices have higher output power and a range of about 100 meters, and Class 2 devices have lower power and a range of about 10 meters. Bluetooth enables ad hoc networking of up to eight devices (supporting voice and data). The Bluetooth Special Interest Group (SIG) was founded in 1998 by IBM, Intel, Ericsson, Nokia and Toshiba, and is supported by more than 2,500 organizations. The Bluetooth v.1.0 specification was ratified and published in 1999 and supported data rates of up to 1Mbps. Bluetooth Version 2.1, along with its enhanced data rate (EDR) specification, was ratified in March 2007, supporting data rates of up to 3 Mbps, and simplified “pairing” — the process used for securely linking one Bluetooth device to another. It also reduced power consumption, doubling the battery life of headsets and other mobile devices for which the Bluetooth radio consumes a large percentage of the power budget. Version 3.0 (“Seattle”) was adopted by the SIG in April 2009, and the specification included Wi-Fi as an alternative transport layer for large volumes of data, supporting data rates of up to 24 Mbps. The SIG also adopted “Bluetooth low energy,” a new ultra-low-power variant, previously referred to as Ultra Low Power (ULP) Bluetooth and Wibree.
GPRS stands for General Packet Radio Service and was the first popular data standard for mobile phones.
GPRS was used for WAP and MMS messages and offered modest connection speeds - typically 30-40 Kbit/s, although the theoretical maximum is 115 Kbit/s. GPRS is known as a 2.5G technology.
One of the early advantages of GPRS is that it s always on so no connection handshake is needed. It is still very popular, especially in the developing world.
The name of EDGE in full is Enhanced Data rates for GSM Evolution. This is a 2.75G technology further developed from the 2G and 2.5G technologies. Its data transmission speed is higher than that of GPRS and is closer to 3G technology.
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Wi-Fi is a WLAN (Wireless Local Area Network) technology. It provides short-range wireless high-speed data connections between mobile data devices (such as laptops, PDAs or phones) and nearby Wi-Fi access points (special hardware connected to a wired network).
The older variant of Wi-Fi, 802.11g, is capable of providing speeds of up to 54Mbps and is backwards compatible with 802.11b (providing up to 11Mbps).
The more recent standard is called 802.11n (offering speeds of up to 150Mbps per channel or up to 600Mbps in total). It can be used in the 2.4 GHz or 5 GHz frequency bands, though a receiver needs to have dual-band antenna to operate on both.
Universal Serial Bus (USB
Mobile Phones Oppo A57
) is a serial bus standard to interface computer peripherals. USB is quickly replacing the need for serial and parallel ports to interface devices.HDMI