Rooting the Samsung Galaxy S III

16 07 2012

Rooting your phone means modifying the operating system (OS) that comes with your device enabling you to have complete control over it by giving you root or superuser permissions on the Linux-based OS widely known as the Android OS. This would be like the equivalent of “jailbreaking” the Apple iPhone.

I am no Android expert. However, let me share here the steps on how I rooted my Samsung Galaxy S III (SGH- I747M). [Reference: XDA Developers Forum]

Before starting with the actual root process, make sure all necessary drivers for the Samsung S III are installed correctly. I use Windows 7 on my laptop and when I plugged in my phone, it automatically looked for the necessary drivers. If yours does not automatically download/update the drivers, get the drivers on Samsung’s website.

Also, if you do not have ODIN yet, you will need to download and install it. ODIN is the software that is used for Samsung phones to load updates, ROMS, etc. Click HERE to go to XDA Developers Forum to find links to download ODIN.

1. Download the stock odin tar that has a rooted system image injected into it. Check for download links HERE.

2. Extract the stock_root67.tar from the .7z file you downloaded.

3. Turn on your Galaxy S3 and go to Settings>Developer Options>USB Debugging > check USB debugging > tap OK to the security warning.

4. Turn your phone off.

5. Press Volume Down + Home (Center Button) + Power until the phone boots up to Warning screen.

6. Plug your phone into the USB port on your computer.

7. Open ODIN 3.07 and make sure Auto Reboot and F. Reset Time are checked under Options.

8. Once connected, it will show the COM port. In my case, it was COM 9.

9. Check the box beside PDA and click on the PDA button then select your .tar file.

10. Click Start and wait until it completes the process and the phone reboots.

Congratulations! Now you have finished rooting your Samsung Galaxy S III!

The above process is only for getting a stock, rooted phone with no custom recovery, no plans to flash custom roms, etc. If you wish to do more with your phone, check the XDA Developers Forum for more tips.

To check and confirm that your phone is rooted, download ConnectBot, SuperUser, or BusyBox from the Play Store (formerly Android Market). If you are not able to download these, then your phone may not be rooted properly.

(Above) Screenshot of ODIN 3.07 after the successful rooting process.

Unboxing the Samsung Galaxy S III

15 07 2012

I was due for a cellphone hardware upgrade since October 2011, but I just didn’t get it until recently. The reason why I didn’t get the upgrade right away was that I wanted to negotiate my contract first to see if I could somehow get it cheaper. I did get a few discounts for my cable/home phone/wireless bundle when I called in (internet used to be part of the bundle, but I switched over to another provider for that), and thought I would call in at a later time again to try to get a few more discounts. Anyway, since I have been very busy with everything else in my life, I didn’t get a chance to call in again. Now, the Samsung Galaxy S III (S3) is out, and I figured, oh well, just go ahead with it and whatever you currently pay for, just renew the 3-year contract.

I picked up my 32GB Marble White Samsung Galaxy S III on July 3rd, and was in love with it when I got it (currently, the other colour option is Pebble Blue). I was a bit hesitant before that to switch to an Android, since I have been a BlackBerry user for over two years and I felt I did not want to part with my BBM and BlackBerry keyboard. Anyway, I’m fine with it now, although I haven’t actually started using it.

See below for the photos of the unboxing of my Samsung Galaxy S III. I forgot to take a photo of the back of it before I got it armored. Included is a photo of the back of my phone after I got a pink Ghost Armor [] for it (thanks to Steve L. at the Scarborough Town Centre location for the discount).

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The Samsung Galaxy S III is the flagship Android smartphone of Samsung Electronics released in 2012. Like its predecessor, the Samsung Galaxy S II, the S III is a touchscreen-based, slate-sized smartphone, with a significant addition of software features, expanded hardware, and a redesigned physique. In particular, it employs an intelligent personal assistant (S Voice), eye-tracking ability, wireless charging, and increased storage. Depending on countries, the 4.8-inch (120 mm) smartphone comes with different processors and RAM capacity, and 4G LTE support.

BlackBerry OS 2.0 coming soon!

16 02 2012

The BlackBerry PlayBook, a tablet computer with BlackBerry OS (based on QNX Neutrino) made by Research In Motion (RIM) which was first released in April 2011, didn’t quite impress a lot of people because of the lack of some features such as a native e-mail client, calendar, and contacts, even though the hardware is good.

Now, the long awaited OS 2.0, which will support those features, is expected to be released next week (February 21st as many speculate), so this is definitely good news! Also, the updated OS will allow the PlayBook to run Android apps. I’ve already installed the 2.0 beta version on mine, but haven’t really tested it fully. The beta had some of the features disabled, like the Video Chat, so I’m relieved that the 2.0 full version will be coming soon!

Please, RIM, don’t disappoint!

My Cisco Lab

13 02 2012

I decided to get my own Cisco equipment to practice with after receiving a switch (thanks to Jon Nistor at TorIX). It would help in making me become more proficient in what I love to do, that is networking. So far,  for my own Cisco lab, I have three devices to work with – 3524 switch, 2501 router, and a 2503 router. I’m still looking to get more equipment, better if it has the IOS 12.4 which has the SDM (Security Device Manager) as well, though not really necessary.

Also, I found out a couple days ago that there’s this really good resource website which actually provides free access to Cisco equipment for training purposes. The site is Lab equipment and other costs are provided or sponsored by the site’s owner, commercial sponsors, and voluntary contributions by the community members. I know of a few sites that allow you to use their equipment but for a fee, so hearing about this site was fantastic. Members can schedule to use 1 of 3 blocks of equipment that they have one session at a time.

I’ll be using that site as well from time to time when I need to work with more equipment than what I have.

Countdown Timer Circuit

12 02 2012

“Countdown Timer Circuit” is a project submitted by my group, namely, M. Amit, P. Briones, R. Enriquez, R. Lacson, A. Saldivar (yours truly), K. Tom, and A. Uy, for our ECE 130 – Computer Application class way back August 31, 2006 at University of St. La Salle, Philippines.


The seven-segment decoder is used in many applications. This can be used in displaying letters or numbers. It is most commonly used in digital clock displays, clock timers, and others. Using this has some advantages. For example, with a seven-segment decoder display, it is easier to read the time in a digital clock than with an analog one. It can be easily read because it easily catches the eye.

The group has chosen to create the digital project, Countdown Timer, in order to show one of the applications of the seven-segment decoder. This is only one of the many useful things that can be created with this component. Countdown timers can be started and then stopped at any time and then the display will be showing how much time had passed in between. This timer can be used in different activities. It can be used in sports, games, and in other areas.

We will be showing in the following pages the circuit schematic diagram, what components are to be used, and how the circuit operates.

SCHEMATIC DIAGRAM Read the rest of this entry »

Tour of the TorIX

27 01 2012

I had a chance to have a tour of the Toronto Internet Exchange, also known as the TorIX, at 151 Front Street West thanks to Board Director and current TorIX President Jon Nistor last Friday, January 20th, 2012. Interestingly, Jon started his involvement with the TorIX when he was working way back with Primus Canada about ten years ago, which is where I am currently working.

Now, what is the TorIX exactly?

The TorIX is an entity designed to act as a junction between multiple points of Internet presence. Here, members are able to directly connect with one another in order to exchange local Internet traffic. [TorIX]

It was first started within the RACO facility about twelve years ago in 1999. After a few years, it was then within Switch and Data, and currently it is within Equinix. The TorIX, using a three-switch design, is located in three areas at 151 Front – two are in the Equinix colocation and one is in the Cologix colocation. The two (of the 7 or 8) Equinix areas being used are on the 7th floor, and Cologix is in the 6th floor where the core equipment and the main TorIX switch Cisco Nexus 7000 are located.

Some TorIX members have their own colocation facility within 151 Front, others colocate in the Equinix facility within 151 Front, and others are located outside of 151 Front. The bigger Equinix room on the 7th floor has about 8 to 9 peers there. In the smaller Equinix room, you will find the PRI switch there and some other peers. Teleglobe, who acts as a carrier for some peers like from Netherlands or Italy, and another carrier Level 3 (formerly Global Crossing) also colocates in that room. Some of those that colocate in the Equinix facility do not necessarily have their actual servers in the location; it is only their transport equipment and multiplexers there, like for example Google, as they have their own data centre somewhere else. CBC and Toronto Hydro are examples of some peers that are located outside 151 Front.

Peering at the TorIX would be cheaper than having to peer directly with each of the ISPs or hosting companies. The cost involved in peering at the TorIX only includes the cost incurred with a peering member’s telco provider, and the last mile connection between the member’s facility and the switch (install + yearly fee). This could be $1,200/year for some smaller company peers, or be something like $60,000/year for peers that want more bandwidth or faster speed. This would be tons cheaper as you would have the opportunity to get connected with many peers through this Internet Exchange.

TorIX members can choose whomever they want to peer with, and configure their own equipment to establish the peering sessions. On the other hand, there are also some others that just use the routeservers if they want to get all routes without individually setting up peering with the TorIX members. This wouldn’t really be all routes, but more like 80% of the routes.

For ten years, the TorIX has been using donated equipment, but now all the equipment are purchased with support contracts – just in case anything doesn’t work as it should, or needs replacement parts. Speaking of which, thanks go out to Jon for giving me a Cisco Catalyst 3524 switch from the spare stock pile, which led me to decide to get my own equipment for my home lab to practice with. I really need to get going in pursuing my Cisco certifications.

The TorIX currently has 7 Board of Directors and 3 Operations persons who all help run the ToriX in a volunteer capacity. Volunteering with TorIX would be great, in my opinion, so I would want to help out in some way, as it would be a good learning experience as well. They have monthly meetings, take part in conferences, have projects from time to time (like the current NTP server project with CIRA),  and others.

Just a thought

11 01 2012

Someone mentioned to me today how it’s amazing that my interest involves two opposite sides of the spectrum. We were talking about how I am into the I.T./technology field AND the performing arts.

I don’t think I have mentioned it here yet before in this blog, though I know that some of my friends do know these two sides of me. Actually, there can be a lot of sides to me. I am unique. I am simple, but also complicated. I know that I’m not the only person who is like this though. Well, it’s different living in this side of the world, because not a lot of people are like me in the sense of interests – so some people can be surprised to hear what I do. FYI, dear people – this is not uncommon if you grew up in Asia.

These are just some thoughts that come to mind on this Wednesday night after a long day of some ‘performing arts’ stuff.

Back to regular programming soon on this blog.


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