This is my operation, and succeeded . I post it here, wish it can help some one.
my reader : kubo aura one
firmware version :4.4.9439
My os: windows 10
1 get the patch ksm09 and koreader***.zip
https://www.mobileread.com/forums/sh...d.php?t=293804
https://github.com/koreader/koreader/releases
(i used koreader-kobo-arm-kobo-linux-gnueabihf-v2015.11-1457-g7feea40.zip)
2 unzip the two zip file above
3 connect your reader to pc, use usb cable.
4 copy folder "kbmenupngs" to root of device.
5 Eject safely and disconnect
6 Check that all images are listed in the library and their thumbnails are displayed there.
7 Connect your reader to pc, use usb cable.
8 Copy KoboRoot.tgz to the folder .kobo of the device.
9 Eject safely and disconnect.
10 Wait until the update is finished.
11 Now the KSM menu is shown, Press [start nickel] or wait a few seconds, it will go to the original interface.
12 Connect your reader to pc, use usb cable.
13 Copy FOLDER "koreader" to . adds of the device.
14 Reboot, now in the menu , [start koreader] is listed
15 Press [start koreader], enjoy it !
This is my way , if you do , it is on your own risk.