Firmware Upgrade 5.2875.2 Firmware UpgradeUse the Service Tool to upgrade 2N® LiftNet. The Service Tool upgrades the CU andall audio units connected.Procedure1. Connect the CU to the PC USB.2. Start the Service Tool.3. Click on to connect the device, select the device from the list ofconnected devices and press OK.4. Select in the toolbar.5. Select the FW version.6. Select the voice menu language version.7. Select whether to retain configuration, or reset the parameters to factoryvalues.8. Launch the upgrading process.9. When the CU upgrade has been completed, you are invited to upgrade theaudio units (using the Service Tool, or upgrade is executed automatically uponthe system start if parameter 998 set to 1).10. Set date and time (Device -> Date and time setting)Caution Remember to set date and time after the upgrade. Make sure that the CU and audio units have the same FW versions toavoid system errors. You are recommended to factory reset the parameters to set new rangesand default values in the new FW version.Tip Back up your configuration, execute upgrade and factory default reset andupload the configuration into the device (new ranges and default valueswill be used in the new FW version).
