ZHA设备如何恢复到Factory New状态呢？

请教下各位：

ZHA设备怎么恢复到Factory New状态呢？怎么才能删除NV中所有的网络参数信息呢？

uint8 ZDOInitDevice( uint16 startDelay )
{
uint8 networkStateNV = ZDO_INITDEV_NEW_NETWORK_STATE;
uint16 extendedDelay = 0;

if ( devState == DEV_HOLD )
{
// Initialize the RAM items table, in case an NV item has been updated.
zgInitItems( FALSE );
}

ZDConfig_InitDescriptors();
//devtag.071807.todo - fix this temporary solution
_NIB.CapabilityFlags = ZDO_Config_Node_Descriptor.CapabilityFlags;

#if defined ( NV_RESTORE )
// Hold down the SW_BYPASS_NV key (defined in OnBoard.h)
// while booting to skip past NV Restore.
if ( zdappHoldKeys == SW_BYPASS_NV )  上电的时候如果某个按键处于按下并且Hold状态的话，会把NV数据全部擦除，重新启动。
{
zdappHoldKeys = 0; // Only once
networkStateNV = ZDO_INITDEV_NEW_NETWORK_STATE;
}
else
{
// Determine if NV should be restored
networkStateNV = ZDApp_ReadNetworkRestoreState();
}

if ( networkStateNV == ZDO_INITDEV_RESTORED_NETWORK_STATE )
{
networkStateNV = ZDApp_RestoreNetworkState();
}
else
{
// Wipe out the network state in NV
NLME_InitNV();
NLME_SetDefaultNV();
// clear NWK key values
ZDSecMgrClearNVKeyValues();
}
#endif