3. If the Web page lists more than one product, find your instrument model number and click the link.
4. On the product page, press the Downloads button.
5. Under the Drivers/Firmware/Software tab, you can optionally follow the Firmware Revision/Release History link to download a document detailing current and past firmware changes.
6. Click on the link Firmware Update for the BTS Master MT8220T.
7. Click the Download button, then choose Save or Save As. Do not run the executable file directly from the Web page.
8. Go to the Save location designated in Step 7 and double-click the installer file, or USB Loader.
9. In the Firmware Update dialog, click to view, then accept the software license agreement.
10. Select the Removable Disk drive where the USB stick is inserted.
11. Click Prepare USB Memory Stick to extract and copy the firmware update code.
12. After the firmware update code has finished copying, click through the final steps in the Firmware Update dialog to close the installer program.
13. Eject the memory stick from the computer.
Note
The file structure created on the USB memory stick by the installer program is necessary for a successful firmware update and must not be altered in any way.
14. Turn off the LMR Master and insert the USB memory stick into the instrument.
15. Make sure the LMR Master is plugged into an AC power source and not running on battery alone, then turn on the instrument.
16. The instrument should detect new firmware on the USB stick and ask if you wish to upgrade. Press Yes.
17. The Automatic Firmware Update dialog should open at this time. Skip to Step 19.
Note
If the same firmware code as contained on the USB stick is already loaded on the instrument, a message indicating that firmware update is skipped will display briefly on the instrument screen.
If the firmware update on the memory stick does not match your instrument model, an error message will display briefly, indicating that it is not compatible.
18. If there is no error but the instrument does not enter upgrade mode automatically:
a. Press Shift>System (8) > System Options > Reset > Update Firmware.
b. Press Load Firmware at the bottom left of the instrument screen.
c. Press Update Application Firmware.
d. The Firmware Update dialog opens.
19. Use the Up/Down arrow keys or the rotary knob to select one of the Save modes.
• Save none: No attempt is made to save any user data.
• Save user data: User data is saved to the selected external media device.
Warning
Some user data may be lost if not enough memory space is available on the selected device.
• Save & restore user data: User data is saved to the selected external media device. The instrument also attempts to restore the files to the instrument after the update.
Warning
Some user data may be lost if not enough memory space is available on the selected device.
20. Press Enter.
21. Press Enter again to proceed with the firmware upgrade.
To cancel the operation, press Esc. In this case, you need to press Shift>Mode (9) and select an application from the Mode Selector list in order to exit upgrade mode and resume normal instrument operation.
Warning
You cannot stop the upgrade once it has started. To avoid potential permanent damage, do not turn off the instrument or remove the USB stick during the firmware update.
22. After the update is complete, the instrument should reboot automatically.
23. When the upgrade is finished, power off the instrument, remove the USB stick and power the instrument back on.
Note
If the instrument turns off but does not restart, remove the USB stick and power the instrument back on.