1. By using parallel space app:

• Go to Playstore and Install Parallel Space app
• Now install Whatsapp in your android device (which is your first original whatsapp account)
• After installing Whatsapp and Parallel space open parallel space and you can see whatsapp icon out there
• Now tik on Whatsapp icon and you can see mark on it.
• click on 'add to parallel space'
• And you can see the cloned whatsapp icon into the parallel space account. It is your second whatsapp.
• Register your second number and enjoy your whatsapp with two numbers..

2. Download GBWhatsapp

• Download latest version of GBWhatsapp.
• After downloading, Install it and open it.
• Enter your secondary number you want to run.
• After entering number verify your number by sms/calling
• This is your second whatsapp account enjoy it.

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If you want to install application which are not in your google play store .
I have got a solution for it.
1. For that first you need to install es file explorer from play store in your mobile and then you have to search for network (from side bar) then choose android tv.
2. To connect your tv to your android smart phone you have to be in same wifi network.
3. You will get a small computer icon over there tap onto it.
And you will be connected to your tv.
And after that you can install apks which you have to download in your smart phone .
3. You will get a option for installing apk into your tv. Install it.
I tried it and it worked for me . I installed terrarium tv from which i can watch latest movies and latest tv shows.
I tried to install show box as well as but it does not work because it is made for mobile version.
If u like my post comment.

Commonly used method fo Mobile Hard Reset methods go from there:

1. Make sure the device is powered off
2. press and hold the Volume Up and the Volume Down keys both at the same time, then press and hold the Power key.
3. Press the Volume Down key to navigate down to FACTORY RESET then press the Power key to select it.
4. Use the Volume down key to navigate down to the “wipe date/factory reset” option. Once it’s highlighted press the Power key to select it.
5. Once you see the “Confirm wipe of all user data?” Press the Volume down key to highlight “Yes—delete all user data”, then press the Power key to select it.