Upgrading The Handset Firmware - Nortel T7406E Installation And Configuration Manual

18 Click Start Load.
19 When the upgrade is complete, remove the AC power source from the bridge controller.
20 Connect the base station AC power source to the base station.

Upgrading the handset firmware

1 Ensure that all the handsets you plan to upgrade are deregistered.
2 Remove the battery pack from each handset.
3 Ensure that you have extracted the drivers from the upgrade CD to the default directory
(C:\Silabs\MCU\CP210x).
4 Connect the USB-to-UART cable between the bridge controller and the PC.
The PC LED lights.
5
Connect the upgrade cable between the upgrade ports of the bridge controller and the handset
adapter.
6
Squeeze the levers on either side of the handset adapter.
7 Push the handset adapter firmly into the battery pack compartment at the back of the handset.
8 Release the levers to allow the handset adapter jig to snap firmly into place.
9
On your PC, right-click on My Computer.
10 Navigate to Properties>Hardware>Device Manager>Ports>USB to UART Bridge
Controller (COMx).
11 Make note of the port COM number (COM1, COM2, COM3, for example).
12 From the upgrade CD, launch the FlashLoaderGUI.exe executable.
13 From the COM Ports list in the main FlashloaderGUI window, select the port the
USB-to-UART bridge controller is connected to (COMx).
14 From the Baud Rates list, select a baud rate (115200 is recommended).
15 From the Flash Types list, select SC14428 External Flash (10.368MHz) for a base station
upgrade.
16 From the Bus Mode Types list, select Duplex bus.
17 From the File menu in the FlashloaderGUI, select Open.
18 Navigate to C:\Silabs\MCU\CP210x and locate the base station driver (indicated with the
abbreviation HS).
19 Select the handset driver.
20 Click Open.
21 Connect the AC power source to the bridge controller.
The Power LED lights.
22 Click Start Load.
T7406E Cordless Handset Installation and Configuration Guide
Chapter 6 Upgrading the firmware 49