Diagnosing SMC issue on liquid damaged A1932
Rather unfortunately, I have spilled some coffee over a A1932 Macbook Air.
Issues which I am currently experiencing are:
- the notebook will not work on battery, only with AC power plugged in
- I experience the behavior when fan is always working at max speed and the CPU is always throttled similar to Fan running at full speed, CPU throtled or Fans on max after new display fitted by Apple. And other issues
- apple diagnostics reports PPT006 (battery requires service) and PFM006 (SMC issue)
From what I gather, the full-on fan points to a possible issue with a temperature sensor somewhere. The most obvious guess is the battery, but in fact Mac Fan Control does report reasonable (?) battery temp sensor values:
Are all temperatures it reports.
So my question is how would I diagnose the SMC issue? Could it be caused by the battery alone (i.e. could replacing it be enough)? How would I go about checking if there are some malfunctioning temp sensors? Use some more powerful software? Maybe someone with this device could share there Mac Fan Control output.
Anyone with acess to a A1932 willing to help out?
Or perhaps output of
I wonder if the couple -128°C values are expected (i.e. sensors are not present in my model) or actually indicate the problem. Does anyone know what the Ts1S is? Or where the TB0T (Battery TS_MAX) could be physically located?
Is this a good question?
Mac Fan Control doesn't really show correct thermals which is one reason I don't use it. Here is a better product: TG Pro
While your examples of other questions may appear to be similar each system series has its own conditions. If you searched under MacBook Air and maybe focused on the 2018 models you might have something useful. Sadly we just don't have that many people with spillage with the newer MacBook Air's.
The examples were specifically for the SMC issue which (presumably) causes max fan / cpu throttle in case of a faulty temp sensor.
I realize I may well be one of the first people on the planet to damage a 2018 Air this way :) But if anyone with this device could run istats for me, that should be of help as well.
I have a similar problem with my water damaged A1932. At the moment I cannot boot into a operating system, internet recovery freezes. Apple hardware diagnostics shows SMC Error PFM006 like on your machine. My fan is spinning at max speed. The battery looks damaged by eye. I recently checked all temperature sensors on the mainboard and the trackpad by sniffing the corresponding I2C bus. They all are between 20 and 30°C, so I assume there must be a damaged temperature sensor at the battery. I probably try to sniff this I2C bus too.
Hi there! I’m in the same situation with coffee damage and the same things happens to my macbook. I tried a lot of things and i’m thinking about trying with a new battery cause I saw a lot of people that said that without the battery plugged in the cpu can’t work fine. The only thing I can’t try is an smc reset cause the power button isn’t working, but I saw something about power on pads and I’d like to try resetting the smc with it. I’m not sure if it’s the little button near the battery connector and if it could work..
by Szilard Csoka
Hi, there, I did a stupid thing, and to degrease my
A1392 screen, I put it under tap water (caring to avoid keyboard), assuming it should be at least water-resistant. Looks like water made its way inside the screen, and now, despite still being able to use, I have some flashing bands and blurry overall. Do I have any chance of natural drying/recovering or is it doomed for good?
by Walter Dias