Solution : https://service.sap.com/sap/support/notes/511397 (SAP Service marketplace login required)
Key words :
mobile system maintenance msy 3, \cd5_mobile_client_upgrade\devenvupgrade\msv_reports\------path, make reports work, mobile service msv 3, terms service process, mobile service layouts, mobile service, \cd2_mobile_client_installation\msv_reports\, service process, mobile client