How to Tune a Guitar Easiest Way

If you are  beginner who learn a guitar (or even you are an expert) on each guitar string must be in the right tone when it will be used. To make your guitar is on the right  standard tone on each string you need a guitar tuner.
There are so many guitar tuners device and software in the market or on the Internet,  but if you have smartphone that use Android or iOs, I recommend you to install the free App called GuitarTuna, the extremely fast, easy and professional accuracy guitar tuner.


Reason to use GuitarTuna:
• It is Free
• Easy to use, it tells you if tone is too low or too high
• Professional accuracy.

GuitarTuna uses the speaker of your smartphone to generate the tone/sound , and uses the Microphone of your smartphone for detect whether your guitar string sound is too low, too high or already ok.

• Go to App Store on your iPhone or Play Store on your Android then search for app with keyword: GuitarTuna, and install it.
• After installed, run the App
• Put your smartphone at the front of your guitar
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How to Set Recovery Mode on iPhone

Recovery Mode on iPhone is needed when you want to set your iPhone to factory default setting using iTunes.

To enter to the Recovery Mode on iPhone :

• Turn off the iPhone,
(Press and hold power/sleep button for about 4 seconds, then touch and slide from left to right on slide to power off that appearing on the screen). Wait until the iPhone is really off.

• After the iPhone is off, Press and hold Home Button,
• Still hold the Home button, connect iPhone to Computer using iPhone data cable ( holding the Home Button until Recovery Mode appears on the screen).

How to Scan QR code or barcode using Smartphone

How to read QR code or barcode using smartphone Android or iOS (iphone)?.
Have you ever bought a product and it said for the more manual information and for the software you have to scan the QR Code. How to do it?

Example QR Code for h0w2.blogspot.com

• First you have to have the App named QRcode reader/scanner in you Smartphone.
• Go to Android Google Play or App Store for iOS.
• Search App with keyword: QR code reader or QR code scanner
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Download Picture From iPhone Without iTunes

Usually to access data on an iPhone (and others iOS) you need iTunes installed on the computer. But you can also use other ways (not use iTunes) to access or download data from iPhone/iPad.

There are many Apps can be used for accessing the iPhone/iPad data, one is Wifi Photo Transfer special app for downloading photo/picture from iPhone/iPad to other devices, to computer, Android device, etc those have  internet browser and wifi connection.

Connect iPhone/iPad and the computer or other devices to the same wifi (same SSID/name)
Install Wifi Photo Transfer App on the iPhone/iPad
Access the iPhone/iPad using browser from other devices (computer, Android, iOS, etc )
Browse and download the Pictures.

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Replying older message in WhatsApp

In WhatsApp conversation when you want to reply or answer to the older message, you don't need to re-write or copy paste that message. You can do with the simple way.

Here is the trick:

- Tap and hold the older message that you want to be the topic
- Then Click the Reply icon (Android) or Reply text (iOS)

'Reply' icon on Android

'Reply' on Ios

The screenshot of that message will appear above the cursor, now you can write or answer the message.

How to know iPhone 4 or 4S Quickly

Between iPhone 4 and 4S look like the same, somewhat difficult to distinguish each other visually from the outside physically.

To know quickly which one  iPhone 4 and which one  iPhone 4S from outside physically, visually :

Look at iPhone from upside
See the figure below :

Easy way to know iPhone 4 or 4S

You can see the difference position of line/stripe of each iPhone.

How to Remote Windows using iPhone

You can do Remote Desktop Windows computer using your iPhone. Although the screen is small in the iPhone but you still be possible to work on it, because you can use zoom in  to make the area bigger.

The requirement to make possible remote your Windows computer using your iPhone :

1. The Windows computer (desktop, laptop or netbook) and the iPhone must be connected to the same Wi-fi (the same wifi SSID). It means the computer and the iPhone connect to the same network.
2. On the Windows computer must be enabled  the Remote access and set permission for remote user.
3. If the Windows firewall is active, it should be add the exception for remote desktop access, or turn off the firewall.
4. You have to know the IP Address (Internet Protocol address) and the computer name
5. On the iPhone you must  install The Remote Desktop Windows application  that can be downloaded from the App Store.
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Only one speaker works in my iPhone 4 / 4S, why ?

If you have an iPhone 4 or 4S, try to play any music or sound, then use finger or thumb  to block the speaker hole located at the bottom of your iPhone, then you will find only one speaker will work, the right speaker side. not work for the left side.

Only one speaker works,  is it problem with your iPhone?
The answer is not problem, because although the shape and looks the same as speaker, located at  the left side is not a speaker, it is a microphone.
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How To Grab Screen on iPhone Without Additional App

To grab or take a screen shot or capture in iPhone is by use the home and power/lock keys. It affects to iPhone that uses iOS 2.0 or higher. Whatever your iPhone device, 3G, 3GS, 4, 4S or 5, you can use this trick without additional application.

How to capture :
Open the screen you want to take a screenshot

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Detect Earthquakes using Smartphone

The newer smartphone can work as basic seismometers. Seismometer is a device used to determine changes in the ground surface vibration, which is usually associated with the earthquake.

If you have smartphone or computer tablet, uses Android or iPhone/iPad and you want to have  an application to detect an earthquake, just install the application named Seismograph.

For tablet computer and Android smartphone :
• Open Play Store
• Search the App using keyword: Seismograph

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