Samsung Galaxy A57 has appeared on TENAA, revealing official images and key specifications ahead of the expected launch. The phone features a familiar design similar to the Galaxy A56 but comes in a new lavender colour with a slimmer 6.9mm profile and lighter 182g weight. It is listed with a 6.6-inch FHD+ AMOLED display, in-display fingerprint sensor, Exynos 1680 chip…