Solution : https://service.sap.com/sap/support/notes/699584 (SAP Service marketplace login required)
Key words : 
execute agate-commands, html-business debugger, admin debug settings, terms debuggerenabled solution, admin switch, debuggerenabled switch, earlier releases, switch corresponded, newer patch, 620 patch 9
Related Notes : 
       
| 682759 | |
| 563161 | SAP GUI, SAP ITS & SAP IGS patches on Service Marketplace | 
| 335521 | ITS patch installation of kernel files | 
| 330793 | Downloading patches |