Install WhatsApp Messenger in Oppo A57

1- First step:

To install WhatsApp in your A57 you have several options, if you Oppo A57 has the app store “Play Store” looks for its icon and clicks on it.
If, on the other hand, your Oppo A57 doesn't have a Play Store, see the following article: Google Play alternatives

2- Second step:

At the top of the Play Store application store there is a search engine, click on it and type “WhatsApp”.

3- Third step:

Among the options or suggestions that will appear select “WhatsApp Messenger”.

4- Fourth step:

Make sure to select the legitimate version of WhatsApp belonging to the company WhatsApp LLC, if you have a company phone number you can install WhatsApp Business, this version has specific options for companies.

Click on “Install” or “Get” to begin installing the application on your Oppo A57. It may ask you for confirmation to download the App if you are not connected to a Wi-Fi network since the data will be deducted from your rate that the application occupies.

Wait while WhatsApp is installed.

5- Fifth step:

Once installed you will see the option “Open”, if you wish you can return to the home screen of your Oppo A57, you will have the green WhatsApp icon on this screen, if you do not find it, drag to the right until you find it. Open WhatsApp.

6- Sixth step:

Accept the WhatsApp terms and conditions, click “Agree and continue”.

7- Seventh step:

Enter your phone number, check that the prefix corresponds to your country. You will receive an SMS in that phone number so it must be correct and you must have access to that number, if it's your A57's phone number the app will automatically read the SMS and confirm that it is correct, in case that you do not have to enter the code received by SMS.

Press Ok or Next.

8- Eighth step:

Enter your username, the name you want to appear to your contacts on WhatsApp. You can also upload a photo to be recognized.

9- Ninth step:

Press continue and you're done, you already have WhatsApp installed and configured in your A57 with the operating system Android 6.0 (Marshmallow). Start writing to your contacts by pressing the button +.