Unable to upgrade firmware on VNXe3200 possibly due to faulted SP

Hi, I'm working on trying to upgrade the firmware for a VNXe3200 device. When running the health check prior to the upgrade, I receive this error:

"The health check has failed. A problem has been detected with a backend disk processor enclosure. Ensure that the backend cabling is correct. Error code: platform::check_for_enclosure_faults_2."

Under system health for the DPE, I see this error:

"The Disk Processor Enclosure (DPE) has faulted. This may have occurred because of a faulted SP."

I've verified that the management ports for both SP's are connected to the network on the same VLAN and I'm able to ping them both. Using the IPMI Tool, I logged into SP A and B and ran 

svc_networkcheck -r

and all tests show "The interconnect is OK".

Verified that SP A is the master/primary SP.

I've cleared boot counters with 

svc_rescue_state -c

and rebooted both SP's. When the SP's boot, there's an error in the Log in the web GUI that says:

System [storage] has experienced one or more problems that have had a major impact.

I re-imaged both SP's with the following:

svc_rescue_state -s
svc_shutdown -r
svc_reimage -r

Both the DPE error under System Health and the Health Check error are still showing.

Unfortunately, I'm not very familiar with these EMC storage devices. Thanks in advance!