Don�t know if this is a flaw in their service or a offer , but it provides Free Missed Call Alerts(MCA) service from Airtel. In some cases they provide 1 month free service and on some numbers for 2 months. Lets see what you get.

Follow these steps :

Ada beberapa cara membuat menu navigasi dengan menggunakan CSS. Kami mencoba merangkum beberapa tutorial membuat menu dengan menggunakan CSS

1. Turning List into Navigation.

Tutorial ini sangat berguna. Kita akan belajar bagaimana mengubah CSS List menjadi Menu Bar. Dan yang menarik adalah dengan dasar ini kita bisa membuat menu bar pada CMS seperti wordpress, joomla, dan sebagainya, karena biasanya CMS meng-generate menu dalam bentuk list.

2. Advance Menu CSS

Ilustrasi atau image juga bisa menjadi menu navigasi yang menarik, pada tutorial ini  kita akan belajar bagaimana tekniknya. Tutorial selengkapnya bisa dilihat disini.

3. Advanced CSS menu Trick

Tutorial ini mengajarkan bagaimana membuat menu navigasi dengan efek blur.

4. Javascript Dropdown menu with multilevels

Tutorial ini mengajarkan bagaimana membuat dropdown menu dengan CSS dan javascript. Cocok bagi yang ingin belajar kombinasi CSS dengan Javascript.

5. Dropdown menu with jquery and CSS

Implementasi Jquery dan CSS untuk membuat Dropdown menu yang cantik . Selengkapnya ada disini.

6. CSS Sprites navigation tutorial

Tutorial ini menggunakan CSS Sprite untuk membuat menu, ini adalah teknik yang perlu untuk dipelajari.

7. CSS dock menu

Tutorial ini mengajarkan bagaimana membuat menu navigasi ala Mac. Dengan sedikit efek animasi, kita bisa mempercantik website tanpa harus menggunakan flash.

8.  TAB menu navigation

Tutorial ini mengajarkan bagaimana membuat TAB menu dengan CSS dan Javascript. Teknik ini sangat berguna dan perlu dipelajari, karena banyak manfaat dari TAB menu pada website, dan mungkin suatu saat kita akan membutuhkannya.

9. Matte CSS menu

Satu lagi tutorial membuat menubar dengan CSS. Tutorial dasar ini layak untuk dipelajari, dan faktanya menu yang sederhana seperti ini cocok sekali untuk website dengan desain yang simple.

10.  CSS menu map

Salah satu implementasi CSS yang kreatif. Alih-alih berbentuk menubar, tutorial ini membahas bagaimana membuat navigasi dalam bentuk lain.

Download the ADB tools of your choice. These can either be �Minimal ADB & Fastboot� from our forums or theofficial binaries released by Google. Once installed or extracted, in the folder containing the ADB binary hold shift + right click and click �Open command window here� (if you�re on Windows). If you�re on Mac or Linux, then you�ll need to preface the �adb shell� command below with the directory to the ADB binary.

Connect your phone to  your computer and grant debugging access. Next, type the following commands in the command prompt:

adb shell

su

Grant superuser access to �shell� when prompted on your phone.

am start -n "com.facebook.katana/com.facebook.katana.internsettingsactivity.InternSettingsActivity"

You will now see the internal menu open on your phone.

Open the terminal app of your choosing. Personally I use Termux, but anything that can access the terminal will work fine. Type the following commands.

su

Grant superuser access when prompted on your device.

am start -n "com.facebook.katana/com.facebook.katana.internsettingsactivity.InternSettingsActivity"

The internal menu will open on your device.

We are using adb or the terminal to start the InternSettingsActivity which is the name of the hidden internal menu activity. This is an unexported activity defined in the AndroidManifest file; meaning it cannot be accessed normally from third-party apps. Inside of this internal menu are some settings and tweaks that users of the Facebook app may benefit from. This menu is meant to be only accessed by developers and testers of the Facebook app, so there�s a lot you can do. Scroll down to see some examples.

This is my favorite feature within the internal settings. You can enable a data usage monitor, which will stop the app transferring data once it reaches a certain limit. This is good for those of you on metered connections, as Facebook can be incredibly data intensive. It is filled with videos and pictures, so it�s no surprise. Thanks to this menu, you can simply set the amount of data you want to allow the app at maximum, and also reset the counter if you want to allow yourself to use more data. This limiter works on WiFi or mobile data, so those of you on restrictive data caps on your WiFi can make use of this too.

Another interesting feature is a �force app update� feature. It seems to download the latest version in-app and update, though I didn�t get a package install attempt even though a toast told me it was downloading. This feature may be broken, but it seems interesting nonetheless.

Within the internal menu you can enable video specs for playing videos to display the metadata (file information) while you watch a video. You can also enable logging, play videos muted and force autoplay videos. Autoplay settings are in the app already, but it�s still interesting to see them slightly more advanced here.

And that�s all, if you find any other useful features hidden away in the Facebook app, let us know down below in the comments!

So, here i am going to show you how to access the internal function of HTC Desire Touch screen android phones for testing the various hardware parts of your phone if it is working properly or not with the help of this secret code you can test LCD, vibration, camera, sensor (accelerometer, sensor, proximity sensor, magnetic sensor), touch screen, speaker, earphone, sub key, etc... if you have any hardware problem with your phone you can identify with this code if it is working or not to do this follow the steps below.

Step 1 : First of all open your keypad (where you dial the phone numbers)

Step 2 : Then dial the secret code *#*#3424#*#*
              This will open up a HTC Function Test Program as shown in figure ( you need to click accept to  proceed)


Then select the test you need to perform and press the Run key.
These codes will help you to check various hardware parts of your mobile if they are working fine or not.

Hidden Menu In HTC Desire 820

One more code that you can try on you HTC mobile phone is *#*#4636#*#*
By dialing this code on the mobile you can get information on phone, battery, wifi and some usage statistics like shown in the image below (just click the menu to explore)

There are plenty more of these to be found on the internet, these are just some of the best ones.

CAUTION: Dont mess unless you know what you are doing.