Just was going through my hard drive, and found a text file with a list of codes for some special menus etc.. Just thought I would do a dump here (mind out of the gutter!) in case its any use to anyone who is still using a mobile phone from the techno-ice age days.
##786# is your stats (call time, number of calls, etc)
##3282# is 3g data programming, most of this stuff you need your MSL code to get into.
##MSL# brings you to the MDN/MSID provisioning menu.
Sanyo 4900, 5150, 5300, 8100, etc Nam Programming:
Nam Set: ##Spc+Ok+Key Down+Ok (N)
A-key: ##2539+Ok+Key Down+Ok (X)
Version: ##**837+Ok+Key Down+Ok
Debug Menu: ##FSC+Ok+Key Down+Ok (N)
Airtime menu: ##8463+Ok+Key Down+Ok (n)
Change CAI: ##7738+Ok+Key Down+Ok (!)
Vocoder: ##8626337+Ok+Key Down+Ok
Reverse Logistic: ##786+Ok+Key Down+Ok
Set IP Address: ##2769737+Ok+Key Down+Ok (!)
TTY On/Off: ##889+Ok+Key Down+Ok
Advanced Data: ##3282+Ok+Key Down+Ok+Msl (X)
Ready Link: ##4636+Ok+Key Down+Ok (n)
Browser Init On/Off: ##4682+Ok+Key Down+Ok
Picture Token: ##25327+Ok+Key Down+Ok (!)
Restore Factory Games/Apps: ##5282277+Ok+Key Down+Ok
MDN Programmnig: ##msl+Ok+Key Down+Ok
Replace 'msl' with your MSL.
##7382# - USB MODE