User Manual

9XR Pro: Communicating with a Computer – version 1 4
With the desired file highlighted, long press MENU (i.e., hold the button for about half a second).
You will get a confirmation screen offering: MENU to flash, EXIT to cancel.
Long press MENU. The new firmware will be flashed to the transmitter, with a progress bar
shown. Wait until you see “Flashing complete” in a few seconds. Turn OFF the transmitter.
Turn the transmitter back ON and verify that the new firmware is working correctly.
Connecting to the Eepskye Program
The 9XP Pro can also work with the eepskye program to allow models to be programmed on-
screen and model definitions to be backed up to the computer and retrieved when needed.
Eepskye can also be used to update the transmitter’s firmware. Eepskye currently runs on
Windows, Macintosh and Linux computers.
See the manual Using Eepskye with 9XR Pro for details on how to install and use the program.
Updating the Boot Loader
The boot loader is a separate program residing in the EEPROM memory that makes it possible
for new firmware to be flashed from the Micro SD card to the transmitter.
The boot loader program is included in the firmware file but requires that a special procedure be
used for loading it. This should rarely need to be done and specific instructions will be issued if it
is required. But in case you do need to update the boot loader, here’s how the process works.
First, follow either of the methods explained above to download the new firmware and copy the
file (ersky9xr_rom.bin) to the ‘Firmware’ folder of the transmitter’s MicroSD card.
To update the boot loader, start with the transmitter OFF and not connected to the computer.
The transmitter must now be put into ‘Maintenance Mode’. Hold both horizontal trim switches
(Aileron and Rudder) AWAY from each other and turn ON the transmitter.
You will see “MAINTENANCE – Update Boot Loader” on the screen. Long press MENU and the
new firmware file will be shown on-screen. Select it and long press MENU. Long press MENU
again to confirm “Update boot.” You will see “Flashing” then “Flashing Complete”. Long press
EXIT. The new version of boot loader is installed.