Treo 700w has code

#*#33284 (##debug) to get into Field Test

#*#3282 to change the network settings

#*#7738 (##PREV) - sets Protocol Revision Settion (only allows P_rev_6)

#*#83843733 = 'teathered' = toggles teathered mode

#*# 000000 Basic Programming

#*#8778 = it turns off wireless, but when you enter it again (while wireless is off), it toggles back and forth to "software download disabled" and "software download enabled".

#*#3424 Diag mode screen (Requires your device to reset first)

#*#56672225 Loopback menu

#*#7738 PREV Menu

#*# or ## both works on treo 700w