How to Replace a Cracked, Broken, or Damaged Back Cover Glass on the Apple Series 7 (DIY Repair Guide)
Does your Apple Watch Series 7 (model numbers: A2473, A2474, A2475, and A2477) deliver unreliable heart rate readings? Do you notice unreliable heart rate monitoring, dust accumulating around the edges, or moisture spots inside the watch? If you experience any of these symptoms, it’s time to replace the back cover on your Apple Watch Series 7.