Li Fi


Will we say goodbye to Wi-fi? Scientists have been obtaining speeds of 224 gigabits per second in the lab using a new technology called “Li-Fi” earlier this year. We will be hearing more about this technology that carries high-speed data using visible light communication (VLC) instead of radio frequency waves in the next few months. For Li-Fi to be established, an internet connection, photo detector and a light source such as a basic LED bulb is required. It transmits much more information and thus presents a solution the drawbacks of RF-bandwith. This progess in technology has a huge plausibility to transform everything about the way we use the Internet. Velmenni, an Estonian startup company in Tallinn succeeded at transmitting data at 1GB per second, making it almost 100 times faster than the usual Wi-fi speeds. Switching bulbs on and off in a period of nanaseconds, impossible to be noted by human eye is what creates visible light communication (VLC).

What is Li-FI ?

Li-Fi technology first appeared on Global Ted Talk almost four years ago, viewed almost 4 million times was introduced by German phycisist and University of Edinburgh Professor Harald Haas. He showed that it was possible that more data than a celular tower could be transferred with a flashing light from an LED.  Professor Haas spoke enthusiastically potraying a future of wireless hotpots existing as a result of billions of light bulbs. Unlike Wi-fi, Li-fi can be implented on aircrafts and other places where inteference is an issue because it does not interefere with other radio signals. Because the visible light spectrum is 10,000 times bigger, it is remote that it will deplete expeditiously. This is a plus over Wi-fi, where the spectrum for radio waves is in insuffcient amount.


Li-Fi does not need a direct line in sight for a signal to be transmitted ; 70 Mbit/s can be achieved through light reflected off the walls. Although one of the key strengths of Li-fi is the non-inteference with radio signals, the plain truth that visible light cannot penetrate through walls override many of the advantages. This reason alone contributes to a huge advantage of Wi-fi over Li-Fi. Even though it is foreseeable that a network of connected lightbulbs all being used to transfer data between nodes, it is difficult to imagine the benefits of faster wireless technology overshadowing the costs of LED lights continuous usage and the cost of clear line-of-sight using optical detectors. Furthermore, Li-Fi connection cannot be set up outdoors in direct sunlight because that would meddle with its signal.


Despite some setbacks of Li-Fi, if you are feeling positive and ready to welcome Li-Fi into your life, hold on to your Wi-Fi routers for some time more. According to the International Business Times, chief executive Deepak Solanki, we will have to contain our enthusiasm as it is going to take another 3 to 4 years before this timeless technology will be within the reach of consumers. At least there is a light at the end of the tunnel where internet will be much more accessible and flashing a hundred times more.

Xiaomi Redmi Note 3 price in Malaysia


The astonishing Xiaomi Redmi Note 3 launched its existance in November 2015, only 3 months after Xiaomi Redmi Note 2 arrived in the market. The great news is that Redmi Note 3 also falls into the category of mid-range handset with powerful specs at a stunning ground level base price of RMB899 or $141 considering it is only being directed to China at present. The slight increase in price compared to the Redmi Note 2 is hardly noticable. A full and slim metal body with a 5.5-inch touchscreen display and resolution of 1080 pixels by 1920 pixels at a PPI of 403 pixels per inch is what Xiaomi is offering for the money. Although the phone’s features are fully metallic composed, the top and bottom are made of plastic to receive antenna reception. If you didn’t like the adolescent and colorful plastic wrap design in Redmi Note 2, you’ll welcome Note 3’s external packaging. The appearance and design is stylish and posh because of the metal build that comes in three exciting colors – champaign gold, silver and dark grey.


If you sometimes squint your eyes in broad day light or stand in a shade to use your handset, the phone has a solution for that. Xiaomi Redmi Note 3 introduces it’s 5.5-inch Full HD display called “Sunlight Display”. The name speaks for itself, allowing the screen to adjust and tune the contrast and brightnses of individual pixels so that it boosts an magnifies visibility in the blazing sun and brightl light. The device is powered with the same octa-core Helio X10 by MediaTek processor found on Redmi Note 2. The memory is 2GB of RAM, with 16GB storage cannot be expanded.  However, there is an option to upgrade to 3GB of RAM and 32GB of storage instead for an extra little charge ($172 or RMB1,099). The Xiaomi Note 3 comes with a 4000mAh non revomable battery, substantially bulkier than the 3,020 mAh of the Redmi Note 2.


The phone weighs 164grams only and measures 150.00 x 76.00 x 8.65 (height x width x thickness) and runs Android. It also backs fast charging support and restocks up to 50% in a single hour. The phone can be unlocked in a swift moment of only 0.3 seconds with the help of the circular fingerprint sensor on the back, which is a new thing for the company. It also fuses with Xiaomi’s new Mi Wallet service. There is no upgrade in the camera for Redmi Note 3. It the same as Note 2, which packs a 13-megapixel principal camera on the front and 5-megapixel front shooter for selfies on the rear.


The Xiami Redmi Note 3 is a smartphone that is dual SIM (GSM and GSM) with two Micro-SIM capacity. It has connectivity preferences which are Wi-Fi, GPS, Bluetooth, 3G, 4G (with backing for Band 40 provided by several LTW networks in India). Proximity sensor, Ambient light sensor, Accelerometer and Gyroscope are the types of sensors that are available in the phone.


It is somewhat mysterious that Xiaomi dispatched a full upgrade to the Redmi Note 2 only three months later after its release. It is probable that the initial idea was to set off the upscale and metallic version. However, due to running into unanticipated circumstances, the company was made to release the Redmi Note 2 to improvise. Xiaomi has also been facing tough competition having slowed down next to it’s other sucessful competitors in China. This is proven when Huawei, another  growing telecom giant has taken over Xiaomi’s place first spot in early fall.

If you are wondering how the Redmi Note 2 and Redmi Note 3 are competing against each other, let’s take a good look again. Truthfully and observantly, the two devices share a lot in common seeing the Redmi note 3 should have been named Redmi Note Pro 2. It is no surprise then that the comparibility would be more than just trivial. Overall, both smartphones possess the same processor display size and cameras. The differences of the two phones lie in the battery size, phone thickness of 8.65mm and 8.3 mm, design of the cover – metal versus polycarbonate, and the absence of fingerprint scanner, a hardware feature in Redmi Note 2.

Price in Malaysia

Xiaomi Redmi Note 3 is expected to be priced at RM595

Sony Experia Z5


Next in line of Sony Xperia Z3+ is the Sony Xperia Z5. Tne new Xperia Z5 range was officially announced by Sony in September. They are the Z5 Compact, the Z5 and the Z5 premium. They differ slightly in their sizes with the Compact being tinier at 4.6 inch, the Z5 being 5.2-inch chief, and the Z5 Premium at 5.5-inch phablet that includes the first 4K smartphone display. The new Sony Xperia Z5 presents to the eye a unique style of glamorous look. Weighing 154grams, it has smooth surface, metal framing and a frosted black glass that is easy on the eye and leaves a comfortable touch laying your bare fingers on it without leaving traces of fingerprints on the back of the phone.


There are four colors to the Xperia Z5 and all of them are beautiful – black, gold, green and and white. The gold stands out the most looking refined. You’ll find that the phone rests more comfortably in your palm this time as the edges have been rounded and smoothed down. It  felt sharper in the hands a couple of generations ago. So a nice improvement is that although the design of Xperia Z5 is somewhat blocky, it is more comfortable to hold than the Xperia Z2. The device has a cap to protect the microSD slot and nano SIM slots. The other ports are bare but water resistant that it doesn’t need the protection as the other earlier phones did. With less flaps, the chances of breaking them off is slimmer and scratching your nails hard to pull them out to charge at night becomes less of a drag. The bezels on the front of the phone is the only slight change. It has become narrower to make the phone smaller but still maitaning the same size of the screen. On a rainy day, this phone would survive if you dash from one place to another thanks to the water and dust proof design and an IP68 rating. The phone has also a new power button with a fingerprint sensor and recognition on the right side. It functions identically to Apple’s touch ID through a hard press comparatively to Samsung’s Galaxy S5 swipe. Unlocking it safely becomes easy with just a quick simple gesture of your thumb.


Roam about chatting, enjoying your tunes, or browsing without being eternally clinging to your power bank when the battery life lasts till up to 2 days. Top up recharging is as quick as 45 minutes for a full’s day of power. The Sony Xperia Z5 also endows a camera of F2.0 G Lens and 23 megapixels which grants the photo to receive more digital zoom. You will find the camera sitting on the top left corner with the flash beneath it. It is declared that the Sony Xperia Z5 has the fastest hybrid autofocus which allows the object to be focused within 0.03 seconds. If you’ve always struggled to keep your hand from shaking, ease into Xperia Z5 camera feature of optical image stabilization, which Xperia Z3+ marked as well. Your photo selections can now include your night activities with Sony’s low light technology image sensoring. The night photos are just as clear as the ones in the day without much blur anxperia z5 kd noise.


There is also slow-motion playback for video recording at a higher frame rate thanks to new selections from Sony. The Sony Xperia Z5 comes has been installed with Android 5.0 “Lollipop” using Sony’s signature interface. However, it is established that Sony will eventually upgrade the device to Android 6.0 “Marshmallow”


The three Xperia phones are similar but the key difference is the size of the screen and it’s resolution. The Xperia Z5 starts at the smallest screen of 4.6-inch 720p, the Z5 a 5.2-inch 1080 display and the Z5 Premium a huge 5.5-inch 3840×2160 pixel screen. It usually displays a 1080p image unless the resolution comes into use when 4K material is being displayed. The three Xperia Z5 phones have a Qualcomm’s octa-core Snapdragon 810 processor and have 3GB of RAM except the Xperia Compact. The phone also comes with a non-removable 2900mah battery for 10 hours. It includes an onboard storage of 32GB, with microSD card expansion up to 200GB.

Multiple Hard Drive enclosure

Having multiple separated external hard disk can be a headache. One solution is to go for a single multiple bay hard disk enclosure that can fit all your hard disks instead of having all of them separated. You can also opt for NAS ( Network Attached Storage) which is a viable solution however typical NAS storage will cost a few folds compared with multiple bay hard drive enclosure. Typically enclosures will support from 2 up to 16 disks. Price will go up with more bays support.

Here are some points to consider when buying external hard drive enclosure

  1. Some of the enclosures will have extra functionality such as RAID. This is good for backup purpose incase of hard disk failures
  2. Choose enclosures with good air flow and casing. Hard disk gets quite hot. A good fan helps
  3. Find enclosure with high speed connectivity to your computer. Typically eSata or USB 3.0 and above would be ideal

Here are some hard drive enclosures which are available on the market.

probox 4

Probox 4

Mediasonic Probox is a good choice for external hard disk enclosures. It comes with RAID or non RAID functionality. Of course non Raid would be cheaper. The aluminium enclosure supports up to four 3.5 inches hard disks. The maximum size for each hard disk is 4TB which gives you to a total of 16TB. All of the hard disk is connected via Sata cable. The enclosure comes with built in fan which can be upgraded. The enclosure is connected via eSata or USB 3.0 cable to your computer.

Probox 4 comes with a nice looking LED panel where basic functionality of the enclosure can be set. Probox 4 is has smart fans functionality where it will auto adjust it’s speed based on the temperature of the enclosure. It also has smart sync functionality where it will auto shuts down when your computer shuts down.

orico 4 bay enclosure

Orico 4 bay enclosure

Orico 9548U3-US-BK is an aluminium enclosure which supports up to four 3.5 hard disks. Each bay supports up to 6TB which gives a total of 24TB. Orico enclosure is designed where hard disk can be mounted easily without any tools. This enclosure supports USB 3.0 connection of a computer. Hard drives also can be locked with a locking key which I think is rather unnecessary. One would steal the whole enclosure instead of individual disk considering the size of the enclosure


 Archgon 4 bay enclosure

Archgon is another interesting choice when it comes to 4 bays enclosure. This enclosure is aluminium built with LED display for functionality such as fan speed. It can handle the latest 6TB hard disk per bay which gives to a total of 24TB disk space. This device supports USD 3.0 or eSata connectivity.


How to export Google Hangout message the easy way ?


Google Hangout is becoming a very popular chat application with the rise of technologies such as Android phones and Google Chrome.  Everyone that logs into these application will need a Google account and thus will almost automatically has a Hangout account. Now Google does not provide an easy way for you to export the chat history with your contacts, infact there are not direct button where you can just push the button and export chat history. Fortunately, there are some ways that you can export the chat history.  Here is the quickest way to export the chat history without any coding knowledge ( This is applicable at time of writing)

google take out

1. Google Takeout

Google Takeout is the only known best way to export something out of Google accounts.  You can access your takeout service via this link Next you will need to choose the services where you want the data to be exported. Do make sure the hangout button is selected with a green tick. Click next

google take out 02

 2. Download the Hangout chat

After clicking next, it will take a while to process the Hangout chat data. You can then download the data after it was processed by Google Takeout.  Bear in mind to have your Google ID and password ready for any verification process. The file is actually zipped. You will need to unzip the files.  You will then have a hangout.json file. This file actually contains the chat history however it is not is readable form.


3. Upload to somewhere readable

Fortunately someone has made a parser to read the files on the Internet. You can upload the Hangouts.json file to and wholla, your chat history is now readable.

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