And add this line of code in wp-config file
define(‘CONCATENATE_SCRIPTS’, false);
just above this line
/** Sets up WordPress vars and included files. */
require_once(ABSPATH . ‘wp-settings.php’);
Step 1:
Got to theme folder then >js folder then >admin folder and upload latest jQuery file. Lasted file available to download from http://jquery.com
Step 2:
Then go to theme folder again >includes and open theme-config.php and replace the name of of jQuery file with the name of latest file you just uploaded in first step.
Note this update will work if your current theme is less then jQuery 1.8.3 framework.