2G (or 2-G) is short for second-generation cellular network. 2G cellular networks were commercially launched on the GSM standard in Finland by Radiolinja (now part of Elisa Oyj) in 1991.Three primary benefits of 2G networks over their predecessors were:

Digitally encrypted phone conversations.
Significantly more efficient use of the radio frequency spectrum enabling more users per frequency band.
Data services for mobile, starting with SMS text messages.2G technologies enabled the various networks to provide the services such as text messages, picture messages, and MMS (multimedia messages). All text messages sent over 2G are digitally encrypted, allowing the transfer of data in such a way that only the intended receiver can receive and read it.
After 2G was launched, the previous mobile wireless network systems were retroactively dubbed 1G. While radio signals on 1G networks are analog, radio signals on 2G networks are digital. Both systems use digital signaling to connect the radio towers (which listen to the devices) to the rest of the mobile system.
With General Packet Radio Service (GPRS), 2G offers a theoretical maximum transfer speed of 40 kbit/s. With EDGE (Enhanced Data Rates for GSM Evolution), there is a theoretical maximum transfer speed of 384 kbit/s.The most common 2G technology was the time division multiple access (TDMA)-based GSM, originally from Europe but used in most of the world outside North America. Over 60 GSM operators were also using CDMA2000 in the 450 MHz frequency band (CDMA450) by 2010.

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    Samsung 3G/2G Tool 12.3 released. Time for change

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  2. N

    Z3X BOX Samsung 3G/2G Tool 12.0 released

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    Samsung 3G/2G Tool 12.0 released

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  4. Lawra

    Z3X BOX Samsung 3G/2G Tool 11.9 Happy New Year

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  5. Lawra

    Z3X BOX Samsung 3G/2G Tool 11.9 Happy New Year

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    Z3X BOX Samsung 3G/2G Tool 11.8. Make X-mas very hot

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    Z3X BOX Samsung 3G/2G Tool v.11.4 released

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    Z3X BOX Samsung 3G/2G Tool v.11.4 released

    Samsung 3G/2G Tool v.11.4 released New massive update - Added support for B6520L (Unlock/read codes, Repair IMEI, repair SWUP, read/write NVM) - Added support for S8350B (Unlock/read codes, Repair IMEI, repair SWUP, read/write NVM) - Added support for S5660L (Unlock/read codes, Repair...
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    Z3X BOX Samsung 3G/2G Tool v.11.4 released

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    Z3X BOX Samsung 3G/2G Tool v.11.3 released

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    Z3X BOX Samsung 3G/2G Tool v.11.3 released

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    Z3X BOX Samsung 3G/2G Tool v.11.2 released

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    Z3X BOX Samsung 3G/2G Tool v.11.2 released

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    Z3X BOX Samsung 3G/2G Tool v.11.0 released

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    Z3X BOX Samsung 3G/2G Tool v.10.9 released

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    Z3X BOX Samsung 3G/2G Tool v.10.9 released

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  20. rajeshchiyyan

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