Solution : https://service.sap.com/sap/support/notes/967821 (SAP Service marketplace login required)
Key words : 
tpp<upgrade dir>/exe/tp unlocksys <sapsid> pf=default, <upgrade dir>/exe/tp unlocksys <sapsid> pf=default, choosing edit -> modification operations -> switch, cd <upgrade dir>/bin, call_function_parm_missing short dump occurs, key word tables reason, user <sapsid>adm, tt_e071 und tt_e071k  parameters, call transaction se37, operating system level
Related Notes : 
       
| 949497 | No search possible in transported keyword catalog | 
| 947991 | Add. info.: Upgrade to SAP CRM 5.1 ABAP | 
| 925240 | Add. Info. on upgrading to SAP SCM 5.0 SR1 ABAP | 
| 913971 | Add. info. on upgrading to SAP ERP Central Component 6.0 SR1 | 
| 913849 | Add. info.: Upgrade to SAP CRM 5.0 ABAP SR1 | 
| 905029 | Add. info.: Upgrade to SAP NW 2004s Support Rel. 1 ABAP | 
| 826488 | Enhancements to upgrade on SAP CRM 5.0 ABAP | 
| 826093 | Add. info. on upgrading to SAP SCM 5.0 ABAP | 
| 826092 | Add. info. on upgrading to SAP ERP Central Component 6.0 | 
| 822379 | Known problems with Support Packages in SAP NW 7.0x AS ABAP | 
| 818322 | Add. info.: Upgrade to SAP NW 2004s ABAP | 
| 788218 | Add. info. on upgrading to SAP ERP Central Component 5.0 SR1 | 
| 775047 | Add. info. on upgrading to SAP Web AS 6.40 SR1 | 
| 672651 | OCS: Known problems with Support Packages in Basis Rel.6.40 | 
| 661640 | Add. info. on upgrading to SAP Web AS 6.40 |