X20/X20S and Ethos v1.5.0 User Manual
Procedure for migrating to Ethos Suite
1. Ensure that you are on at least Ethos version 1.1.4, the minimum version needed to
flash the new Ethos Suite compatible bootloader (FRSK format) from the File Manager
on the radio. If not, you will need to manually update to 1.1.4 to be able to migrate to
Ethos Suite for automated updates.
2. Make a backup your SD card or eMMC (it’s advisable to copy all of it to a folder on your
computer).
3. Download the zip file for the latest bootloader from
https://github.com/FrSkyRC/ETHOS-Feedback-Community/releases (currently the
bootloader is 1.4.3, please refer to the 1.4.3 release for the file) for your radio, and
unzip it.
4. Power the radio on in bootloader mode (hold the enter key down, keep it down and
then press power ON) and connect the system to the PC with a data USB cable.
5. Copy the bootloader to a folder on your SD card or eMMC (normally the Firmware
folder), then eject the drives and disconnect the radio from the PC.
6. Start the radio, go to System / File Manager, tap the bootloader.frsk file you have just
copied and select the ‘Flash bootloader’ option.
7. Download and install the Ethos Suite. You should now be able to follow the sections
below to update your radio firmware and the Flash and SD card or eMMC files to the
latest versions, and make use of the other Ethos Suite features.
8. Please note that you may need to rename the bitmaps/user folder on the SD card or
eMMC to bitmaps/models if ETHOS Suite does not do it for you. This is the folder where
user bitmaps are stored.
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