Leaked software code suggests Samsung plans major camera upgrades for its next mid-range phones, the Galaxy A37 and Galaxy A57. A new report says both phones may use a new 50-megapixel main camera with a larger 1/1.56-inch sensor, improving low-light performance. The Galaxy A57 is tipped to get a better 13-megapixel ultra-wide camera, while the A37 uses an 8-megapixel…Leaked software code suggests Samsung plans major camera upgrades for its next mid-range phones, the Galaxy A37 and Galaxy A57. A new report says both phones may use a new 50-megapixel main camera with a larger 1/1.56-inch sensor, improving low-light performance. The Galaxy A57 is tipped to get a better 13-megapixel ultra-wide camera, while the A37 uses an 8-megapixel…