iPad air lỗi nút home
step 1: measure here, if doesn’t have resistance -> tracking to line and lifting resistance (green frame), or the wire (yellow frame) on line.
step 2: home button sometimes shorting -> isolate and remove capacitor (purple frame).
step 3: take a look at resistance (green frame), it just error when the side supply voltage 1v8 rotten by water -> replace same value.
step 4: after all, it still does not work -> take off IC source and measure here, If has resistance -> replace IC source, if doesn’t have -> broke at cpu base.
Note: In reality, home button wasn’t work by home line error. if go deeper, it made pilling off wire and resistance on home line by our action when took off sensor.
step 2: home button sometimes shorting -> isolate and remove capacitor (purple frame).
step 3: take a look at resistance (green frame), it just error when the side supply voltage 1v8 rotten by water -> replace same value.
step 4: after all, it still does not work -> take off IC source and measure here, If has resistance -> replace IC source, if doesn’t have -> broke at cpu base.
Note: In reality, home button wasn’t work by home line error. if go deeper, it made pilling off wire and resistance on home line by our action when took off sensor.