MacBook Pro dropped - acts slow now and fan is always on very loud

Hi,

my Macbook Pro fell down , the screen got cracked and the fan is running at full speed. Also the system is overall running very slow, the cursor is jerky.

I ran both , Apple Hardware Diagnostics and Apple Service Diagnostics and it gives an error at Ts0p palm rest sensor. (also on extended AHD Test)

But I dont get it. ASD tells me that it can read a value and states an SMC IO error.

I opened up the machine and have the schematics here with the corresponding brd file of the logic board.

Can anyone give me a hand what to do ?

Ah yeah, I almost forgot to mention the most important thing. People on the internet are talking about the sensor being inside the Trackpad or on its flex cable. So I got my hands on the Macbook pro mid 2009 from my friend and swapped the trackpads along with the flexcables.

Result:

Did another SMC reset before testing and the fans still went crazy as before, nothing changed.

My trackpad and cable however worked flawlessly in my friends macbook .

So the Trackpad shouldnt be the problem.

Any ideas?

UPDATE:

I ran ASD OS and here are the 3 failed test from 84 tests

Local machine info: Mac OS X version = 10.8.2(12C3104) IP Address:127.0.0.1 ASD version:3S155

ASD Log activity from [07/20/14 01:50:03] to [07/20/14 01:52:35]

[07/20/14 01:51:55] * TESTING STARTED *

[07/20/14 01:51:55]     Temperature (Ts0P) -- Palm Rest (test #1) - Sensor Reads Within Operating Range

- Check to ensure that sensor reads within operating range.

[01:51:56]     ERROR -- 1 [Unable to read sensor] -- TEST FAILED

[07/20/14 01:51:56]     Temperature (Ts0P) -- Palm Rest (test #11) - Extended Sensor Flat Line Test

- Checks that the Sensor changes value i.e. not stuck, with longer time allowance for change (5 mins).

[01:51:56]     ERROR - -13005 [The SMC can not read this sensor] -- TEST FAILED

[07/20/14 01:51:56]     Thermal Interface - Processor:Processor0: TIM Test 75 percent GB (test #4) - TIM Test 75 percent GB

- Check that CPU heatsink is properly attached, using product spec theta dh + 75 percent guardband.

[01:52:35]     ERROR -- 255 [Unknown result-code 0xff] -- TEST FAILED

[07/20/14 01:52:35] * TESTING FAILED [Elapsed time = 00:00:40]  *

Update 1:

Alright Images aren't shown in Comments , so here is another attempt

also this is a screenshot from terminal (that's probably because the SMC is in kind of emergency mode or smthn)

Update 2:

Here are the temperatures btw. PCH seems a bit high to me. Shouldn't it be lower if the fan is constantly running on 6000rpm?

Picture battery

Update 3:

Here are some measurements

The SMBUS_SMC_2_S3_SCL and SMBUS_SMC_2_S3_SDA seem to be the culprit!

I think I have a bad SMC chip or the two soldering points of the BGA are faulty. But there is 4.3V right? A cold soldering point would implicate no current at all ?

How do I know that it's the two lines mentioned above? Well, all the PP3V3_S3 probes on the bottom side of the board show 3.3V. Everything correct on that end of the line.

So it would make no sense at all if the camera + ambient light sensor (=ALS line) would work and the Sudden motion sensor (=Digital SMS).

Well check this out:

I opened up photobooth and camera (which I never use) didnt work!

System Profiler also says no camera connected!

Alright, I booted up ASD OS and ran an Ambient Light Sensor (ALS) test.

It told me to cover the ALS which I strongly believe is next to the camera. Used my big thumb and covered it. And the ALS test actually failed!

Previously I thought the ALS is ok, since I thought it passed the particular test in the standalone tests. However I now realized that in the standalone test it checks the Ambient AIR Sensor. Interesting to know that there is actually a sensor which recognizes your farts but the point is I thought by mistake that I previously checked the ALS sensor, which it seems I didn't.

The ALS sensor check is only offered in the interactive testing, and it failed.

Although at some point I believe it mentioned to cover "both" sensors. Where is the other one, if there is one?

I tried to cover the microphone hole too but it failed. So if anyone knows if there is another one please tell me so I can repeat the test.

Alright. So technically I'd guess that the Sudden Motion Sensor which is also on the line should be defective. However I am not sure how to check this.

The test didnt offer any checks. So I went to terminal and checked the SMS with sudo pmset -g and the sms was set to 1.

Then I tried to disable it with sudo pmset -a sms 0 and it seemed to work.

And then reenabled it with sudo pmset -a sms 1. And it was 1 again.

Technically the SMS works. I don't know if that makes sense.

Hi Dan!

thanks for the answer!

Here are the results from coconutBattery