With Solutions Enabler 8.x, this action has moved to the symdev command. Try this:  symdev -sid xxxx -devs 619 reclaim
I am trying to reclaim tdev for VMAX-1 that is running on 5876 code.  I am still has no idea what feature is missing here  SE 8.1  # symconfigure -sid xxx-cmd "start reclaim on tdev 619;" preview -nop   A Configuration Change operation is in progress. Please wait...       Establishing a configuration change session...............Established.       Error occurred while Defining change number 1:     The requested feature is not supported for this microcode or SYMAPI version     Terminating the configuration change session..............Done.   The configuration change session has failed.
reclaim tdev