After the database upgrade the Manager console should be able to start and the user able to log in.
You can find the following at the end of the SEPM_INST.LOG file found under %TEMP% or the windows TEMP folder.
MSI (c) (B0:C8) [11:19:22:953]: Note: 1: 1707
MSI (c) (B0:C8) [11:19:22:953]: Product: Symantec Endpoint Protection Manager -- Installation operation completed successfully.
MSI (c) (B0:C8) [11:19:22:968]: The Windows Installer initiated a system restart to complete or continue the configuration of 'Symantec Endpoint Protection Manager'.
MSI (c) (B0:C8) [11:19:22:984]: Grabbed execution mutex.
MSI (c) (B0:C8) [11:19:22:984]: Cleaning up uninstalled install packages, if any exist
MSI (c) (B0:C8) [11:19:22:984]: MainEngineThread is returning 3010