What happens to a photo menu when the power is out?

With no power the QR cannot be scanned and the table photos cannot be seen, so the floor carries the prices and, if possible, the thumbnails on a charged phone. The guest's screen is not relied on in the dark. Charge the floor's phone before service, with the day's menu. In the sierra the power goes at dinner and nobody remembers the price or the dish in the photo. The floor brings out that copy and charges the day's figures.