1) Go to google and search "Findmydevice" and go to that web site using another device.
2) The page will show you the default mobile, If you have multiple devices then select the correct device by clicking its icon and name in the upper-left corner of the page.
3) Then click the Lock option on the left side.
4) Now give a new password and confirm it. Be sure to remember the password.
5) Now enter the new password in your Android device and gain access.
6) done!

Buying a new smartphone can be a dizzying experience. Should you get an an Android? Do you want a massive phablet with a giant screen, or a more modest and pocketable phone? Do you care about having the latest and greatest camera features, or are you O.K. with something more modest? If you're looking for an Android phone, you may prefer the Pixel 2, which packs Google's software smarts and unrivaled camera in a 5-inch device.

Need to monitor how far your utilization is from your month to month versatile information constrain? On the off chance that you have ICS or more, there is a component which gives you a chance to monitor the amount of the share you have cleared out. 

Make a beeline for Settings > Data Usage. 

Set your information confine by hauling the orange line to mirror your month to month amount. 

Set your information use cycle in light of when your "month" begins and closes, and you're finished. 

You will be cautioned once you hit the utmost you have set. Note that the followed information utilization of your telephone may fluctuate marginally than your transporter's following. 

I trust it's exceptionally valuable and supportive everybody utilizes this excursion. 

Thank's to all. 

take note of: it's 100% working

First, boost your phone using the already installed booster on your android phone. If you don't have, you may download it from google play store. Search for "android booster". If done, perform the said task.
Second, you can repair your phone, all apps on your phone using the system repair that can be downloaded also in Google playstore. If done installed, use the app and choose for deep scan so that it will repair even the smallest problem on your Android phone. If done, see the best result on your phone.

Customize your home screen with widget that shows info at a glance 
Like weather,  Calendar & news headline. 
So here we start,  
1) Touch And Hold The empty screen on your home screen. 
2) Select the widget option when  it appears on the screen. 
3) Touch And Hold a widget and drag it to home screen. 
4) adjust the position of the widget on the home screen. 
5) If the dot line appears around the app you can resize it. 
6) Tap anywhere outside the widget when you are done. 
7) That's  It,  Now you can easily access to useful information at a glance. 

Many people secure their phone's application like WhatsApp, Gallery App, Instagram, Facebook,etc, by using Third-Party Application Lockers like AppLock. These Third-Party apps can easily be disabled.

For example: If you have used AppLock android application to lock WhatsApp then everytime when you open WhatsApp, AppLock will not let you go to WhatsApp until you enter the password/pin or pattern set. This can be easily overridden in Android using one of the drawbacks of Third-Party Applications: Disabling Administrator Access for the app then force stopping the app.

When these Application locker apps are first installed, they have to be granted Administrator Access (or Device Admin) so they cannot be uninstalled or forced stop. But if you want to access the secured app, then you have to disable the Application Locker.

To achieve this: 

1. Go to Settings.
2. Go to Security.
3. Open "Device Admin Apps" or "App with Administrator Acess"
4. Uncheck the option for the app Third-Party Application Locker app (like AppLock).
5. Go back to Settings.
6. Go to Applications.
7. Search the Application Locker app
8. Press "Force Stop"
9. Now you can access secured apps.

This works in any android version for any third-party application locker.

Mostly all android phones can be reset from hardware. This is very useful option when you getting trouble with the boot up of your android phones. To do these steps, remove battery and reinsert and make sure the phone is switched off. Now follow the steps:
1) From power off, press volume up key + home button + power button all at the same time.
2) It will show you android resetting symbol and takes you to the reset page.
3) Use volume down key to select the option what you need.
4) If necessary, take the backup of your phone.
5) Using volume down key, you can delete all user data and select power button to delete all data
6) Select power button to reboot system now.

If you complete all the steps, you will get faster version of your old android mobile. 

First, boost your phone using the already installed booster on your android phone. If you don't have, you may download it from google play store. Search for "android booster". If done, perform the said task.
Second, you can repair your phone, all apps on your phone using the system repair that can be downloaded also in Google playstore. If done installed, use the app and choose for deep scan so that it will repair even the smallest problem on your Android phone. If done, see the best result on your phone.

Hide apps

 

Although you may be unable to uninstall some preloaded apps, you may be able to hide and disable them. This causes them to hide from the Apps menu and not perform updates.

 

To hide or disable preloaded apps, follow these steps: