Cancelling Rakuten Mobile

It was kinda frustrating trying to cancel an account in japan. Nothing is automated, I guess they wanted it this way, harder to cancel things. Plus, there are cancelling fee (none for me since i am using data-only plan), and penalty fee if you don’t send back the SIM card (I have no idea why…

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Find the User Agent Strings of any Mobile Devices

It’s quite often for a developer to make use of the user agent to determine what browser does a user used, especially for those who develop web services and websites. Recently I found a website which has a huge database of mobile device information, including the user agent string and even the functions supported in…

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Detecting browsers of iPhone, iPod, iPad, Android and BlackBerry with JavaScript and PHP

To begin with, we need to understand that in the HTTP protocol, browser send its identity called user agent to the server to request the wanted webpage. Every browser has its only unique user agent value, and therefore we can check that value to identify the user browser. So, first we have to take a…

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Take a Screenshot on Samsung Galaxy S2

Press and hold home and tap the power button. This is the magic key for Samsung Galaxy S2 to take a screenshot. It has been such a good news for users like me who used to use iPhone. Somehow it is just the same as the iPhone setting. Actually some of the recent released mobile…

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