QRコードが読み込めません。 — I can't scan the QR code. (Dining · Tech, Formal — to staff, JLPT N4)

Gesture & etiquette

Give a slight bow, then politely gesture towards the table or point to the new QR code menu.

Do not show signs of annoyance or impatience. Avoid trying to fix the customer's personal device yourself, as it may be considered invasive.