These fingerings are compiled from a variety of charts for the keyless flute, fife, and pennywhistle. No guarantees about what might work on your instrument. They are just things to try. If you have a fingering chart from the folks who made your instrument, try those options first.
O is an open hole, X is a closed hole, % is a half-closed hole. R means to try both open and closed variants.
|E||XX0|00X, XX0|0XX||XX0|0X0, XX0|XX0|
|F#||X0X|X00||X0X|XRX, XXX|X0X, XX0|XX0|
|G||X0X|000||X0X|00X, XXX|00X, 00X|XXX|
|A#/Bb||0X0|X00, XX0|X00||XX0|0XX, X0X|000, X0X|XXX|
|D (4th)||0XX|00X, 0XX|XXX|