To change the logo go to settings => Global settings
In the search bar search logo, then click okay
Select the full row (click on left empty column). As shown in the picture
Click the upload button. Now select the logo from your computer. Logo width will be 250px.
Now click on update button in blue color.
You also need to change the logo from School logo 2 reports and School logo reports.
For School Name
In search bar search name
Select School name row click on left empty column.
In value, write your school name then Update.
You also need to change the school name from School Name Reports.