MBA 13 820-3437 sensor error

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • MobileXT
    Senior Member
    • Oct 2012
    • 191
    • USA
    #1

    MBA 13 820-3437 sensor error

    I working on a MacBook Air 13 2014 820-3437 with the following error Thunderbolt Proximity, MLB Top Side, Airport Proximity, Memory Proximity and Trackpad Skin. I almost replaced all the sensors already and still have the same results. I attached a Photo here.
    Attached Files
    Tags: None
    • piernov
      Super Moderator
      • Jan 2016
      • 4435
      • France
      #2
      Re: MBA 13 820-3437 sensor error

      Check if all the same sensors fail without touchpad plugged in.
      If yes, probably an issue on SMC "3" SMBus.
      Check resistance across R5390 and R5391.
      Check voltage and diode mode to ground on SMBUS_SMC_3_SCL and SMBUS_SMC_3_SDA.
      OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

        Comment

        • MobileXT
          Senior Member
          • Oct 2012
          • 191
          • USA
          #3
          Re: MBA 13 820-3437 sensor error

          I did unplug the keyboard and trackpad and the rest of the error are disappear except the trackpad Skin. So I concluded that the track pad must be bad. Thanks!

            Comment

            • jimmyspangle
              New Member
              • Feb 2021
              • 1
              • UK
              #4
              Re: MBA 13 820-3437 sensor error

              Trackpad cable.

                Comment

                Previous template Next

                Related Topics

                Collapse
                • groomit
                  Google Pixel 5 - Proximity Sensor Issues - Reflow/Replacement procedure tipps wanted
                  by groomit
                  Hi,
                  I just replaced the battery on a Google Pixel 5.
                  After that the proximity sensor isn't functioning properly any more. It is constantly activated. So when playing a voice message on Whatsapp, the Screen instantly turns off.
                  Checking with a sensor app I can verify weird behavior of the sensor. It is triggered when nothing is near and sometimes works correctly when squeezing the phone next to the sensor hole.
                  The rubber seal is on again (as mentioned in various suggestions in other forums).

                  This smells like a cold or broken solder joint. So I'd like to reflow...
                  06-11-2025, 02:21 AM
                • spidertnt
                  820-02443 14" M1 angle sensor / keyboard / trackpad not working
                  by spidertnt
                  FYI.
                  I just had a 14" M1 MacBook Pro with liquid damage very small pretty much only angle sensor sustained any corrosion or damage.

                  But both keyboard and trackpad will not work at all ! Screen would flicker on and off all the time.
                  I ended up re-building the traces on the angle sensor cable using very small copper wire... this fixed both the flickering and the keyboard / trackpad.

                  I'm like WTF does the angle sensor have to do with keyboard / trackpad ?
                  04-29-2023, 11:03 AM
                • CG2
                  Meaco Arete One / Deye Dehumidifier not working
                  by CG2
                  I've got a dehumidifier that has stopped working. Plug it in, press the power switch, and it beeps 5 times. Nothing showing in the display (which is just two 7 segment displays) apart from the two decimal points flashing. The model is a MeacoDry Arete One 18L, which seems to be a rebadged Deye (all the boards are marked Deye). Here's what I've got so far (details in case anyone else in future should need them).

                  Starting with the power board. Mains power comes in at the red connector top left. The compressor is powered by the orange connector to the right of that and is switched by...
                  Power Board Front
                  5 Photos
                  08-17-2024, 07:47 AM
                • modtool
                  HP x360 Chromebook 14A-CA, DA00GIMB6H0 REV:H, flooded, restored, slow and stuck in tablet mode
                  by modtool
                  Dear colleagues,
                  I've entered the repair of the chromebook machines just one month ago and I've found some significant differences from the classic laptops or macbooks, so I'm searching some advices.

                  The owner of this chromebook gave it to me after it has been left flooded by water for almost a week, so chances of repair were not so high, the mainboard was oxidyzed in many spots but I made a nice cleaning, resoldering and component replaging work and now it is almost working.

                  Among other things I've cleaned many spots from oxyds, reballed CPU, EMMC, EC, replaced...
                  05-07-2025, 06:10 AM
                • No Lan
                  [Macbook pro A1708] [Boot loop] [Trackpad ?]
                  by No Lan
                  Hey everyone,

                  Usually, I'm not the type to ask for help, but this time, I'm calling on your wisdom and expertise I've seen what this community can do, so I'm pretty sure you guys can help me out.

                  Here's the deal: I noticed my MacBook got stuck in a boot loop. After opening it up and doing some initial troubleshooting, I found that the boot loop stops only when the trackpad is unplugged.

                  Now, just so you know, the trackpad actually works — I tested it with another motherboard and it's all good. Same for the cable, no issues there. The problem is only...
                  05-24-2025, 03:09 PM
                • Loading...
                • No more items.
                Working...