![Sercel GRC ESP Series Field Installation Manual Download Page 43](http://html1.mh-extra.com/html/sercel/grc-esp-series/grc-esp-series_field-installation-manual_1245816043.webp)
Doc No. 006-0211-00 Rev AD
Page 43 of 62
10. Press and hold the "Shift" and "U" keys on the computer keyboard while
simultaneously turning the SPS-1500 power on. You should soon see "BEGIN
TRANSFER" displayed in HyperTerminal. If you do not, power down the SPS-
1500 and repeat this step.
11. Select "Send file..." from the "Transfer" option on the HyperTerminal menu bar.
12. In the dialog box that opens select the file that contains the SPS-1500 firmware,
set the protocol to "X modem", and press "Send".
13. When the transfer is complete, remove power from the SPS-1500, disconnect the
USB cable and reconnect the RS-485 interface.
14. Power the SPS-1500 back on and verify the new firmware version is displayed
on the LCD screen.