Solution : https://service.sap.com/sap/support/notes/1724702 (SAP Service marketplace login required)
Key words : 
saplogon -> options -> additional command line arguments, sl toolset support package 05 patch level 3, sap gui support bit emergency_repair, internal sessions reached reason, support package levels, sap gui controls, basis enhancement package, software update manager, call transaction sa38, support bit
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