Solution : https://service.sap.com/sap/support/notes/49012 (SAP Service marketplace login required)
Key words :
sap_codepage = 8000 path_to_codepage = <directory path>, selectingthe menu system -> status, download/upload functions, work correctly, push buttons, mojibake occurs, /3 release 30d, default codepage, profile parameter, /3 application serverand
Related Notes :
| 195490 | Automatic selection of GUI frontend code page |