How to upgrade PHP version from CPANEL:
Login as CPANEL admin, look under the SOFTWARE section and look for PHP Manager / MultiPHP Manager.
Mine is MultiPHP Manager because I'm running several domains.
Click the domain where your Joomla is installed and select PHP 7..... click apply.
I observed then that my Joomla dashboard was still throwing some errors, so here is a code I added to the top of my .htaccess file.
=====8888888===
DOT HTACCESS SETTINGS
# Set the “ea-php73” package as the default “PHP” programming language.
<IfModule mime_module>
AddHandler application/x-httpd-ea-php73 .php .php7 .phtml
</IfModule>
# php -- END cPanel-generated handler, do not edit
=====8888888===
Error kaput, im happy
