I've tried updating the firmware on the S4 and I get a SD directory omitting error.

S4 is not hashing correctly with elgius, so I moved back to ghash.io and set worker difficulty to 2048.

Hashrate at the pool fluctuates between 1.85 and 2.05 Th/s in the last 24 hours.  Noticing ghash keeps redirecting me to uk1 and uk2...will test with us servers.