SD Memory Card Installation/Upgrade Guide 1KX-TDA5920/KX-TDA0920KX-TDA6920SD Memory Card Installation/Upgrade GuideTable of ContentsPreparation............................................................................................................................... 2Installing the SD Memory Card in a New Hybrid IP-PBX ........................................................ 5Upgrading a Hybrid IP-PBX from a Previous Version of System Software (KX-TDA50/KX-TDA100/KX-TDA200 only) ....................................................................................................... 8Restoring a Hybrid IP-PBX to a Previous System Version (KX-TDA50/KX-TDA100/KX-TDA200only)........................................................................................................................................ 15KX-TDA5920: PSMPR Software File Version 3.0000 or laterKX-TDA0920: PMPR Software File Version 3.0000 or laterKX-TDA6920: PLMPR Software File Version 3.0000 or laterDocument Version: 2006-02