I advice to check out the link as the formating in this post is incorrect. Also its not a 1’s as Mentioned(ones). Its LS lowercase.
ls is listing off whats in the sdcard, so you can pick the folder to delete.
Open Command Prompt as Admin, and Type:
adb shell
Then type:
cd sdcard
Then type:
ls (which is lowercase LS)
This will give you a list of jazz, pick which to delete. ie: Alarms DCIM UE4Game etc etc
Then type:
rm -r UE4Game/ (this deletes all in that folder)
Good luck.
Note, To delete games from Oculus Quest, that are unknown sources, you can use this command:
open cmd as admin and type:
adb uninstall com.YourCompany.Nameofgame
(note: com.YourCompany.Nameofgame is from project settings-Platform-Android- Android Package Name)
Cheers