Hi,
There are 2 different firmware packages for S1200RP family, one is for S1200V3RPL/S1200V3RPO/S1200V3RPM, the other is for S1200V3RPS. You cannot use S1200V3RPL/S1200V3RPO/S1200V3RPM firmware package on S1200V3RPS board. Please verify that you updated the right package. The latest firmware for S1200V3RPS can be downloaded at Firmware package 02.01.0004 for S1200V3RPS
Regards,
Grant