...
U70 Firmware: 2.0
SmartServer: 3.2 Update 2 with Update 2A, 3.6 Update 5, and 4.1 (Beta) and newer
Downloads:
...
U70 Firmware 2.0 requires an update to the SmartServer software implemented in SmaratServer 3.2 Update 2 with Update 2A, SmartServer 3.6 Update 5, SmartServer 4.1 (Beta), and later releases. If you use U70 Firmware 2.0 with an earlier release of the SmartServer software, the U70 will reset once every 10 minutes.