How To Automatically and Manually Update Your Android Smartphone and Tablet
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How To Automatically and Manually Update Your Android Smartphone and Tablet

    Google, the developer of Android Operating System is bringing out new version time after time. Updating your android device to a newer version will give new features and best performance. Most previous versions are 2.3.3 - 2.3.7 Gingerbread, 4.0.4 - 4.0.4 Ice-cream Sandwich, and 4.1 - 4.3 Jelly bean. The most newer version of android now is the 4.4 Kitkat, but Android L is expected to hit the air soon.
    Many android users (both smartphone and tablet) want to update or upgrade their devices to enjoy latest cool and better performance, especially on camera improvement, snapping fast moving scenes, auto-faster focusing and many more.
    Most update on android devices should be available Over-the-air (OTA), which some people have surely received on their device. This avoids the need for cables and PC connection. Using the OTA will be determined by your manufacturer and model. Manufacturer for phone such as Samsung Galaxy, HTC, LG....can expect the operating system update. You should check if the update is also available on your phone by going to the settings>about phone or version>software update (this will provide you information if you are using the latest version, or you can update over-the-air)

How To Automatically Update Your Android Smartphone and Tablet

Before you start, it is advisable as a precautionary measure to back-up your contacts, videos, picture etc. Although, the update should not affect them, but "prevention is better than cure".
1. Go to your settings menu on your android device (smartphone and tablet) and scroll down to about phone or tablet (depending on your device).

2. Click on about phone or tablet, and a section will appear.

3. Click on 'software update' or similar button (to know if an update is available for your device)

4. Your phone or tablet will automatically search for an update.

5. If an update is available, select yes to download and the installation will automatically be applied after downloading. (Your device may have to reboot itself during this process)
Note: It is advisable to download the software update over Wi-Fi, beacuse of the large file.

How To Manually Update Your Android Smartphone and Tablet (with ADB sideload)

First Step. You need to download and install the Android SDK.

Second Step. Plug your device to your machine; you can use any Operating System as long as you can install the SDK. Make sure USB Debugging is enabled.

To make sure you have everything set to start, lets test and see if ADB is properly working. Open command prompt.
adb devices
You should get a serial number followed by a device.
List of devices attached 
01a8uf2804eb20ad device
If you see something like the above then you are on the right boat.
Download Android 4.4.1 (KOT49E)
Download Android 4.4.2 (KOT49H)
Once download is finished, rename it to something like

Third Step. Type
adb reboot bootloader
Your device will reboot to the bootloader, use Volume Down button until you reach ?Recovery?, and press the Power button.
Your device will boot to an Android logo with an exclamation mark. Just press Volume Up Button and select Apply update from ADB, press Power button to select it.

Fourth Step. Type
adb sideload <filename or path of>

If everything went fine, you should see your update file being transferred and the update will be executed automatically.

Once it?s finished just reboot and you are good to go.

Special Thanks to:

For the manual update of your device, I do not guarantee perfect operation  (apply the update at your own risk)

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