Turnkey Plugins \ Social Login for phpBB 3.1.x / 3.2.x / 3.3.x Fork on Github
1. Installation
The installation takes only a few minutes. Please follow the instructions carefully and do not skip any steps.a. Download the extension
Download Social Login for phpBB 3.1 / 3.2 / 3.3
b. Upload the extension
Copy the folderoneall included in the downloaded .ZIP file to the folder ext of your phpBB forum. After having copied the folder you must see the folder ext/oneall/sociallogin in your phpBB directory.

c. Enable the extension
Login to your phpBB administration contral panel (ACP) and open the Customise tab. Then look for the OneAll Social Login extension and click on the Enable link to activate it.
d. Clear your phpBB cache
phpBB features a cache system that creates static copies of the used files. One of the most common reasons that something doesn’t work or a change isn’t reflected is because your phpBB is displaying an old, cached version of a changed file. Login to your phpBB administration contral panel (ACP) and on the index page of that area, you will see your Board statistics. Below that is an area titled Resynchronise or reset statistics. This area features a series of Run now buttons. Press the button next to Purge the cache, confirm your decision and your cache will be refreshed.
2. Configuration
a. Open the configuration panel
Login to your phpBB administration control panel (ACP), navigate to the Extensions tab and click on the Settings link in the ONEAL SOCIAL LOGIN group.
b. Setup the API connection handler
Click on the Autodetect API Connection button. You should receive a green success message if your server is able to communicate with the OneAll API. Your firewall must allow outbound requests on either port 80 or 443.
c. Enter your API credentials
To obtain your API credentials, please login to your OneAll account and open the page Site Settings \ API Settings & Credentials of a Site. Fill out the API Credentials and then click on the Verify API Settings button. You should receive a green success message if your credentials are correct.