1. Create a folder named 'OTDR' in the u-drive directory, and put the upgraded file ftx-1000.exe into the 'OTDR' folder;
2. Insert the usb flash disk into the instrument；
3. Wait for 10 seconds, click [system], and then click the [upgrade] button in the lower right corner;
4. When the instrument prompts whether to upgrade, select "yes" and enter the upgrade interface. Click the "upgrade" button;
5. After the upgrade is completed, restart the instrument to complete the upgrade.
1. Need to download PDF virtual printer, search for 'PDF virtual printer' in the browser, download and install it;
2. Open the client analysis software, open the file, and select the "print" under the "file" menu;
3. In the pop-up dialog box, select the PDF printer you have installed, as shown in the figure below.