How Setup Xbee S2C to 1uA of power Consumition.

Hi,

I´m using Xbee S2C in very low power solution.
Looking for Xbee/Xbee-PRO User Guide, Powerd-down current is 1 uA at 25ºC, but I´m having 30 uA at 25ºC.
I configured module to optmized power consumption:

CE = 0
SM = PIN HIBERNATE

Only D5, D8, D9, P0, P3 and P4 pins are enabled.

PR = 1FBF
PD = 1FFF

What I need change to improve my power consumption ?