This post was last updated on May 7th, 2020 at 04:45 am
Nokia Series 40 phones have come a long way. It was first introduced in the year 2002. In this post, you will learn about some interesting basic facts and clues on s40 that you haven’t heard elsewhere. 
Basic Facts and Clues on s40 Nokia Phones
In this section, you will be treated to some very using information about Nokia s40 phones.
What is A S40 Operating System
The term Series 40 (short form of S40)is a simpler operating system variant then the higher end S60(which is
based on the multi-tasking Symbian Operating system).
Because S40 devices do not support true multi-tasking and do not have a native code API for third parties(which allows applications to be sent via connectivity tools such as Bluetooth), its user interface however
appear to be more responsive and faster than other Nokia platforms.
Brief History of Nokia S40
The first Series 40 devices (introduced in 2002) had only 128×128 pixels large display screens
Over the years, the S40 UI has evolved from a low-resolution UI to a high-resolution color UI
with an enhanced graphical look.
The third generation of Series 40 that became available in 2005 introduced support for devices with resolutions as high as 240x320pixels and even 320 X 240.
It is also possible to customize the look-and-feel of the UI via comprehensive themes.
More Info on Nokia S40
Series 40 6th Edition, Feature Pack 1 creates new possibilities for enhanced user experiences in Java apps using touch. This feature enables you to make the most of the touch features music, videos, games, documents, etc. with others via Bluetooth on your s40 device.
Also, if you have a Nokia s40 Bluetooth enabled phone then you can send all types of
files via Bluetooth except a “.Jar” by default. (however, in my post on this blog there is a way of sending .jar apps between phones with Nokia s40) (.jar extension)files.
Officially, you can only receive jar files from other phones but not allowed to send it.
In addition, downloading jar files using UCBrowser help rename the format and thus doesn’t install the
app directly to your S40 device this makes sending of apps possible from an S40 device, the user sends the .jar file in _jar (either via BlueTooth/infrared) format while the receiving. Then you have to rename it from _jar to .jar. once the file is received
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