CC2745R10-Q1: CC2745 power shutdown current.

Tool/software:

Hi TI Experts.

We are a module manufacturer.
We are now using TI CC2745R10 LP to verify the power shutdown current.
We use the SDK simplelink_lowpower_f3_sdk_9_10_00_83.
We call the following program and measure the current from the power monitor, which is 7uA.
How can we reduce the power consumption to <1uA?

int main()
{
  /* Register Application callback to trap asserts raised in the Stack */
  halAssertCback = AssertHandler;
  RegisterAssertCback(AssertHandler);

  GPIO_resetConfig(9);
  GPIO_resetConfig(10);
  GPIO_setConfig(9,GPIO_CFG_INPUT_INTERNAL|GPIO_CFG_PULL_DOWN_INTERNAL);
  GPIO_setConfig(10,GPIO_CFG_INPUT_INTERNAL|GPIO_CFG_PULL_DOWN_INTERNAL);
  Power_shutdown(0,0);

  Board_init();

  /* Update User Configuration of the stack */
  user0Cfg.appServiceInfo->timerTickPeriod = ICall_getTickPeriod();
  user0Cfg.appServiceInfo->timerMaxMillisecond  = ICall_getMaxMSecs();

  /* Initialize all applications tasks */
  appMain();

  /* Start the FreeRTOS scheduler */
  vTaskStartScheduler();

  return 0;

}