For those with access to your cPanel, here is an even easier way. Saves you messing around writing files that are near impossible to locate….

Go to your site’s cPanel
– In cPanel, go to the Select PHP Version button
– In the top right, press the Switch to PHP settings link
– Find the post_max_size and the upload_max_filesize entries in the list of PHP settings and change them as required.
– you can change from the default 2M to 4M as there is no reason to go overboard here.

You can always open it more if you need.

php.ini and change upload limit

php.ini and change upload limit