phpmyadmin is working fine but I can't find config.inc.php file?
The config.inc.php file is not required, and only needed for custom configurations
phpmyadmin will first refer to ./libraries/config.default.php to retrieve the default values.
If for some reason you need to modify the default values, and the ./config.inc.php file doesn't exist, you will need to create one as per the Installation documentation.
You will also need to configure pmadb for some of phpmyadmin's special features such as bookmarks.
rename config.sample.inc.php to config.inc.php and edit whatever you want in it.
if by mistake you have changed the password of your default user('root') and now phpmyadmin is not even allowing you to open it than:
go to config.inc.php file
change your $cfg['Servers'][$i]['password'] = ' '
put ur password in ' ' that u changed.
C:\wamp\apps\phpmyadmin4.1.14 for config.inc.php