Step2. Upgrade the firmware version 1006.1
1. If you completed Step 1 from above, remove the File and Folder (listed
below) on your USB drive.
File
: L540_L550_L580 firmware 1005.1.exe
Folder : T-PRL3AUS
2. Save the firmware file onto your computer.
File : L540_L550_L580 firmware 1006.1.exe
4. Go to the USB Memory Drive and then double click the file
L540_L550_L580 firmware 1006.1.exe.
5. Press "Unzip" button.
7. After completing, press
"OK" and "Close" button.
3. Connect the USB Memory Drive
to the USB port of your PC.
Copy the file into the USB Memory Drive.
OK
6. Unzipping is in progress.
8. The USB driver should contain one folder
named 'T-PRL3AUS'
9. Safely disconnect the USB memory drive
by right clicking the green check mark
on the taskbar and then left click
"Safely Remove".
6
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