Easily root an Android device (4 steps)

Wikipedia says: "Rooting is the process of allowing users of smartphones, tablets and other devices running the Android mobile operating system to attain privileged control (known as "root access") within Android's sub-system".

Step 01
Download and install Kingo Android Root.

Step 02
Enable USB debugging mode on your phone.
(Settings > Developer Options > then tick the box for "USB debugging")

Step 03

  1. Run Android Root on your PC
  2. Connect your phone via its USB cable.

Step 04
Click "Root"



  1. Kingo Android Root: Download

CES 2015: The charger that boosts battery in seconds

I've just been witness to what feels like a modern-day technological miracle.

A Samsung smartphone has just been recharged from being nearly out-of-juice to full capacity in less time than it takes to boil a kettle.

The Israeli start-up behind the demo, Storedot, has shown off a similar feat before.

But a previous demo posted online eight months ago involved a battery many times thicker than the handset itself as well as an outsized charger - making the tech impractical for real-world use.

This time round the phone involved is no bigger than normal, and the charging dock is pretty slim-line as well.

There's a couple of trade-offs involved, but being able to recharge devices about 100 times faster than at present has the potential to revolutionise the way we use mobile phones, tablets, laptops and wearable tech.

Storedot's ambitions, however, are even larger.

Organic batteries
Storedot aims to recharge a typical smartphone battery in less than a minute by 2017 The BBC is the first to have been shown the new kit, apart from tech industry executives who had to sign non-disclosure agreements.

It's not something that can be retrofitted to existing devices, since most phones would be fried by the 40 amps of electricity the current version of the charger supplies.

It also involves using a completely new type of battery, which contains specially synthesised organic molecules.

"We have reactions in the battery that are non-traditional reactions that allow us to charge very fast, moving ions from an anode to a cathode at a speed that was not possible before we had these materials," explains Doron Myersdorf, the company's chief executive.

He adds that phone-makers from the US, South Korea, China and Japan have already begun talks to either license or buy exclusive rights to the tech, and that he has 17 meetings at this year's Consumer Electronics Show (CES) in Las Vegas with "all the major" players.

But Mr Myersdorf also acknowledges that there is still more work to be done before his tech is ready for consumers.

Storedot has a 2017 goal of matching the energy density - the amount of energy stored per kilogram - of its own batteries and the lithium-ion ones commonly found in existing handsets.

The firm's prototypes currently deliver about a third of that rate, meaning the normal-sized handset used in the demo only held 900mAh of juice, and would have to be recharged several times a day were it deployed now albeit only taking two minutes to do so each time.

The company also showed off a 2,000mAh battery, which took three minutes to recharge, but the phone that housed it had been made 5mm (0.2in) thicker than normal to accommodate its girth.

By the 2017 deadline, Storedot also aims to halve its current charging times.

Abramovich backing

Storedot says it aims to further reduce the size of its charger At this point it's probably wise to offer a caveat.

The tests involved the BBC being shown a graphical readout to prove the batteries were being recharged as fast as suggested.

This would be relatively easy to fake, and Mr Myersdorf acknowledges that his scientific claims have yet to be peer reviewed.

But his credentials and those of his chief technology officer, Prof Simon Litsyn, check out. Both held key roles at Sandisk, which they helped make a leader in flash memory tech.

Furthermore, their firm has already raised $48.5m (£32.1m) of funds, $10m of which came from Russian tycoon Roman Abramovich's private asset management company. The BBC understands Samsung is among the other investors.

Even so, one industry-watcher remains wary.

"Battery technology is the single biggest challenge holding back the consumer electronics industry right now," says Ben Wood from the CCS Insight consultancy.

"Any claim to a major breakthrough should always treated with scepticism because it's been promised so many times before and we still don't have a solution.

"But if what this company is claiming to offer comes to pass, it would have a huge impact, as the amount of battery-hungry connected devices people use in their daily lives is rising exponentially."

Increasing battery life has become the Holy Grail of the gadget industry Certainly, CES itself is packed with firms offering a plethora of portable batteries to help users make it through the day, everything from lip-stick sized chargers for emergency top-ups to a $500 (£300) backpack that can power up several gadgets at once.

Were we able to recharge smartphones in less than a minute, the need to buy such external batteries would decrease - and we might even become more willing to use processor-intensive apps and games, as well as adopt smartwatches and other wearable tech.

But Storedot has a bigger plan.

"We are just starting to work on electric vehicles," says Mr Myersdorf.

"And we intend to show in one year a model of a car that can charge in three minutes.

"We are 100% sure we can deliver, because the knowhow of how you take one cell and combine thousands of them together has already been done by Tesla.

"The user-experience would be exactly like refuelling, but without fumes.

"It would really boost adoption of electric vehicles. It would be a game-changer."

Source: BBC News
Click here for more coverage from the BBC at CES 2015

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New inventions (නව නිපැයුම්): විද්‍යුත් ලියුම් පෙට්ටිය - Electronic Letter Box

විද්‍යුත් ලියුම් පෙට්ටිය

නිර්මාණයේ ස්වභාවය
ලියුම් පෙට්ටියේ ලිපියක් ඇති විට නිවසේ ගුවන්විදුලි යන්ත්‍රය වෙත සංඥාවක් නිකුත් කළ හැකි විශේෂ උපාංගයක් සහිත ලියුම් පෙට්ටියකි. ලිපියක් ඇතිදැයි දැන ගැනීමට ලියුම් පෙට්ටිය අසලට යාම වෙනුවට නිවසේ ගුවන්විදුලි යන්ත්‍රය ක්‍රියා කරවා බැලිය හැකිය. ගුවන්විදුලි යන්ත්‍රය යම් සංඥාවක් (Alarm) නිකුත් කරන්නේ නම් ලිපි ඇති බව දැනගත හැකිය.

නිර්මාණයේ පරමාර්ථය
කාර්ය බහුල අවස්ථා වලදී වරින් වර ලියුම් පෙට්ටිය පරික්ෂා කිරීම වෙනුවට කාලය ඉතිරි කරන පහසු ක්‍රමයක් හදුන්වා දීම.

  1. Electronic Letter Box - TV Cut
  2. Electronic Letter Box 2 - TV Cut 

මේ සදහා පේටන්ට් බලපත්‍රයද ලැබී ඇත.

නව නිපැයුම්කරු: ඩී. එම්. සුමේධ දිසානායක
+94772055141, sumedhe5dms@gmail.com

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GPRS/3G Internet Settings for Sri Lanka


- Subscription: "kit" prepaid
- APN for HTTP: ppwap
- APN for Socket: ppinternet
- IP:

Mobitel Internet

- APN: wap
- Username: (leave blank)
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- Internet Mode: HTTP
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Mathematical Tricks

1. The 11 Times Trick

We all know the trick when multiplying by ten – add 0 to the end of the number, but did you know there is an equally easy trick for multiplying a two digit number by 11? This is it:
Take the original number and imagine a space between the two digits (in this example we will use 52:
Now add the two numbers together and put them in the middle:
1089 – It works every time.
That is it – you have the answer: 572.
If the numbers in the middle add up to a 2 digit number, just insert the second number and add 1 to the first:

2. Quick Square

If you need to square a 2 digit number ending in 5, you can do so very easily with this trick. Mulitply the first digit by itself + 1, and put 25 on the end. That is all!
252 = (2x(2+1)) & 25
2 x 3 = 6

3. Multiply by 5

Most people memorize the 5 times tables very easily, but when you get in to larger numbers it gets more complex – or does it? This trick is super easy.
Take any number, then divide it by 2 (in other words, halve the number). If the result is whole, add a 0 at the end. If it is not, ignore the remainder and add a 5 at the end. It works everytime:
2682 x 5 = (2682 / 2) & 5 or 0
2682 / 2 = 1341 (whole number so add 0)
5887 x 5
2943.5 (fractional number (ignore remainder, add 5)
Let’s try another:

4. Multiply by 9

This one is simple – to multiple any number between 1 and 9 by 9 hold both hands in front of your face – drop the finger that corresponds to the number you are multiplying (for example 9×3 – drop your third finger) – count the fingers before the dropped finger (in the case of 9×3 it is 2) then count the numbers after (in this case 7) – the answer is 27.

5. Multiply by 4

This is a very simple trick which may appear obvious to some, but to others it is not. The trick is to simply multiply by two, then multiply by two again:
58 x 4 = (58 x 2) + (58 x 2) = (116) + (116) = 232