Replace wp-admin logo Plugin will help You to Replace wp-admin logo and it's easy to use and option available for manage height and width of logo.

1. Upload the 'replace-wp-admin-logo' folder to the '/wp-content/plugins/' directory

2. Activate the plugin through the 'Plugins' menu in WordPress

3. Show Replace wp-admin logo in Left Dashboard Menu

4. Configure setting

Required Setting

1. In Replace wp-admin logo admin setting : Click on "Add or Upload File" Button For Upload Logo
2. In Replace wp-admin logo admin setting : Add height and width according to logo image height and width