[Galaxy S6 Q&A, Help & Troubleshooting] danielvelez:
Anybody has issues with the barometric sensor?

Long story short:

1. Dial *#0*# and it will pop up an app to check the phone.

2. Go to Sensor

3. Look up for the Barometer Sensor (right in the middle). It should read the actual atmospheric pressure. It should change a little. If not, you probably have a hardware issue. Even hitting the Barometer Selftest can show a "PASS" message but it´s just wrong.

Long story long:

Yesterday I bought a brand new S6 from the local company and I really use the barometer a lot (incredible but some of us really use them). So when i checked the sensor with my usual apps I found that it wasn´t showing what was expected out of it. I live at 1500 MSL so barometric pressure should be around 850hPa.

Nevertheless, the phone sensor is "STUCK" (does not change at all, not even on the elevator) at sea altitude pressure (around 1012hPa or 7 msl)

I went to the company today for a replacement. Filled up a warranty, they didn´t care to look at the phone, and gave me another one brand new. While waiting on the room for the paperwork I went on to check the S6 and S6 Edge that were on the showroom to see the barometer working... None of the displayed phones worked. Then we opened my brand new unit and I insisted on testing the barometer, same result, stuck at 1011.8hPa or 12.08 msl.

Then the cueless but really beautiful girl that works on the showroom and introduces the customers to the "basic functions", didn´t really have an idea of what is a barometer or why somebody would be interested on it at all. She asked by phone to the tech department about the "issue" and they just said that "the sensor only works if you download an app" (really?). So we went along with the flow and waited for the girl to download an application... then she was really happy when she showed me the result: "Look, it works, it shows some hPa and some altitude..." She just didn´t knew what was the altitude of our city, so 8 msl or so seems like a fine number for her...

Anyway, the sales representative told me that they can give me my money back and just declare that I wasn´t happy with the cellphone and that it just wasn´t what I expected... That really got me... but still I didn´t got crazy at all, just explained her that they can´t sell any more units if they are bad and that I ´m telling them in their face and showing them that they are bad units, so it´s just irresponsible to sell them.

Finally they agree to call the "Samsung special guru representative" and he told them that he would like to show me tomorrow how the sensor works. So i didn´t want to take the phone but they insisted that I should keep it as it´s perfectly good and tomorrow some guy will convince me that we are indee at sea height and that our local mountains are not there... Let´s wait.

Meanwhile, I looked up everywhere for a similar issue but seems that nobody is having this problem or nobody really care about that sensor readouts. There´s only one other guy on the whole forum reporting this issue but he just does not make any noise about it.

http://xdaforums.com/showpost.php?p=61013470&postcount=2

I want to pinpoint the problem so here are the specs for the unit that I actually have. Maybe it´s kernel related? baseband (don´t think so)? Build?

Anyone with this problem fell free to jump (maybe we are up for a class action lawsuit against a big name)

Device Name Galaxy S6

Model Number SM-G920I

Android 5.0.2

Baseband G920IDVU1AOC6

Kernel 3.10.61-4403670

dip@SWDD3021 # 1

Sun Mar 8 00:27:41 KST 2015

Compilation LRX22G.G920IDVU1AOC6