I have a PN-810A (NOT an ocean 2)

Here are the codes I know of so far:
##1122(end)
##786#
##3282# (data spelled out)
##43546#636# (helio#636)

on mine: text inbox, then settings, then hit # you get a secret mms setting area
I read elsewhere that the * is used.

Please share any other codes.

Also, just for comparison, here are some of my settings. I have no idea what these do. I just wanted to see if other people's matched.

##3282#, advanced

PREF VOICE SO-all set to EVRC
SCM-station class mark: 42
slot mode: enable
SCI-slot cycle index: 2
national code: 310
network code: 00
ACCOLC: 3
REGISTRATION: all Enable

##1122(end)

Radio config: fwd3/rvs3
Service option: evrc
VAS service area: helio

##786#

Versions
SW: D0810HEP03_2.160
HW: PN-810_REV_07
PRI: v1.0