How to USB tether a Samsung Galaxy S2
What is Tethering?
Tethering is the technical word for connecting your computer or laptop to the internet by using your cell phone as a modem. Doing this allows your computer/laptop to connect using the phones data network (so you're effectively browsing via 3G or 4G dependent on where you are) and, if you've a decent contract, do away all together with a home based internet connection.
This guide will explain exactly how to do this by using a Samsung Galaxy S2 running Gingerbread (Android 2.3.3) and a Windows 7 laptop, though much of the guide is applicable to any Gingerbread device and almost any Windows 7 device.
To tether your laptop to your Samsung Galaxy S2 you need to connect the devices by a USB cable (if you've not got one then this one will work Micro USB Data Cable For Handsets) and then make sure that the phone is in phone mode. If your phone has opened in "USB mode" then click the phones home button to return to the phone mode.
Open the phones settings menu and then enter the "Wireless and Network" option (which is the top option in the settings menu). After progressing this far you will need to find the option of "Tethering and portable hotspot" which will be at the bottom of the screen when you first enter.
Inside the "Tethering and portable hotspot" menu you will notice the top option is "USB tethering" with a small tick box beside it. You will need to tick the box and then just put the phone down and let the computer or laptop do it's thing as it installs a number of drivers. From this point on everything you need to do will be through your computer or laptop. As soon as the drivers are installed you will notice an icon in the bottom corner saying "Network" by clicking on this the phone will be able to access the internet.
Although you may be done here, you may also be asked what sort of connection it is so just select "Home" option and you'll be ready to browse the internet with your phone acting as a wired modem. An alternative option to do this is to use a Wireless Portable Hotspot which can be done with out the need for a USB cable though it's a much bigger drain on the phones battery.
When you are done just disconnect the USB cable from Samsung Galaxy S2 and you'll lose the tethering connection and be able to use your phone as normal.
Issues with tethering
Tethering, whilst a great feature and a wonderful tool for the Samsung Galaxy S2 can, if misused, be very expensive. The internet browsing done when you're tethered is done via your data network, if you've a rather limited data plan with your phone you can end up incurring large charges for using the connection. If you've a truly unlimited data plan (as offered by 3 in the UK) then you can almost do with out a home connection however if you've only got something like a 250MB allowance you need to be careful, especially if you are using things like youtube as they will eat into your data plan swiftly.
- Mobile Phone Tips and Tricks
Source used for the picture.