Maintenance Manual 190-02472-02G3X Touch EFIS Part 23 AML STC Revision 2Page 893. A Software update window will appear on the screen; use the Touch Panel or a Move SelectorKnob to select YES to begin the update.Figure 7-12 – Update Software Window4. The unit will reboot, then GDU software update will begin automatically.5. Ensure power is not removed while the update is being performed. The screen will displayprogress of the software load.6. The unit will reboot after the update is complete.NOTEWhen the PFD screen goes blank during reboot, hold the MENU button down until the screen indicatesConfiguration Mode. Select the System Information page to see the software load status of other G3XLRUs. Once all LRUs have been updated it is safe to remove power or reboot the display to normalmode.7. Repeat steps 1 through 5 on the MFD (if installed).7.9.2.2 LRU Software Loading InformationG3X LRUs, (except for GDUs) will automatically receive software updates from the PFD following a GDUsoftware update. This process may take up to ten minutes for all LRUs connected to the high-speed CANbus. The GDL 5XR is connected via RS-232 and may take up to 30 minutes to update software.Progress of LRU software updates can be monitored using the System Information page in configurationmode. Functionality provided by an LRU will be unavailable during a software update, therefore, all LRUsoftware updates should be allowed to complete before flight after a GDU software update.The current LRU software versions included with a GDU software update can be found in the changenotes on the software download page.7.9.3 Software Load ConfirmationPerform software load confirmation after the software has been loaded to the G3X GDU(s) and LRUs.1. Start the G3X GDUs in configuration mode (reference Section 3.2.2) as required.2. Use the Touch Panel or a Move Selector Knob to select and view the System Information Page.3. Ensure there is a green checkmark next to all installed G3X LRUs.4. Scroll the Device List box and select device’s info by using the Touch Panel or a Move SelectorKnob as necessary to verify the software and version numbers installed in the system.