121.

How to use the 5 Groove Pin Tuck Foot. (Optional accessory : SA194 / F069) [Video instructions]

122.

"Failed to save file." message appears on the LCD. What does it mean?

123.

"An invalid sewing area was touched by the sensor pen. Touch again within the valid sewing area." message appears on the LCD. What does it mean? 　

124.

"The pockets are full. Delete a pattern." message appears on the LCD. What does it mean?

125.

"Raise the buttonhole lever." message appears on the LCD. What does it mean?