Anyone noticed their barometer seems to not be working? - Nexus 4 Q&A, Help & Troubleshooting

I have some meteorological and aviation training and so I downloaded PressureNet, but when I look at my readings history it is not corresponding to the pressure measured by actual NWS equipment. My barometer seems to be stuck between 28.88 and 28.90. Right now the airport 1.5 miles away from my house is measuring 30.19 but mine still says 28.89.
I have verified the reading that PressureNet is displaying with several other barometer apps and they are all the same. I'm thinking I may have defective barometer.
Has anyone else experienced anything like this? BTW my phone is a second batch 8GB made in Korea.

ChrisDTC said:
I have some meteorological and aviation training and so I downloaded PressureNet, but when I look at my readings history it is not corresponding to the pressure measured by actual NWS equipment. My barometer seems to be stuck between 28.88 and 28.90. Right now the airport 1.5 miles away from my house is measuring 30.19 but mine still says 28.89.
I have verified the reading that PressureNet is displaying with several other barometer apps and they are all the same. I'm thinking I may have defective barometer.
Has anyone else experienced anything like this? BTW my phone is a second batch 8GB made in Korea.
Click to expand...
Click to collapse
You have to also consider that you are comparing a phone's barometer to professional-grade equipment.

ihakim said:
You have to also consider that you are comparing a phone's barometer to professional-grade equipment.
Click to expand...
Click to collapse
The range of barometric pressure is basically only 28.00 to 32.00, so for it to be off nearly an inch and half means it not doing anything at all. And the historical logging is no better, it only stays between 28.8 to 28.9, when it should be changing with the weather.

I noticed mine to be inaccurate too, but it's on it's way back to LG due to rear glass breakage. I too work in Aviation, and was wondering if phone could be of use, but like yours, mine read low.

What altitude are you guys at? Note that atmospheric pressure reported in aviation and weather are corrected for source altitude, and the phone is not. If you are not at sea level, it will always read low.

Related

does your digital compass work?

after doing the 8 thingy, i get north... but when i change orientation, the earth's north pole shifted LOL
i don't get what you mean with the earth's north pole shifted, but yes, mine works pretty good
try gyrator2 and rotate to 180 degrees
north and south will switch places then
that was a joke in a bad way ! what i meant was my North will not be at the right position accurately... it is off each time i switch my phone..
well if you have a case with a magnetic closure like I do, that will give you this effect...
whats that? is there any way to reset the compass or upgrade the software or something...
it is no where near accurate...
for example north is being shown to my right... i change the orientation of my phone by 90 degrees.. now north becomes my front / front right.. but never right again..
no one knows how?
It's crap in comparison to those on other devices. For example, my friend has a Nokia N900 and when he was around my house a few weeks back he had his maps application running in my front room and it was turning smoothly and instantaneously in real time depending where he pointed it. I couldn't even get the HD2 compass to get past the 'figure of 8' request without going outside the house, it simply doesn't work indoors.
It's not very good in my opinion.
ITT: People learn about "magnetic interference".
Pagnell said:
It's crap in comparison to those on other devices. For example, my friend has a Nokia N900 and when he was around my house a few weeks back he had his maps application running in my front room and it was turning smoothly and instantaneously in real time depending where he pointed it. I couldn't even get the HD2 compass to get past the 'figure of 8' request without going outside the house, it simply doesn't work indoors.
It's not very good in my opinion.
Click to expand...
Click to collapse
Maybe you don't know what a figure-8 pattern is.
Mine always works inside, actually never even tried it inside.
Plus, there is an app available that will give the exact same possibility with nav software.
Come on guys,get real...the compass "feature" is purely a typical iphone app and thats all it'll ever be...if you need serious accuracy you'ld be map relying on any electronic compass thats small and affordable enough to hold in your hand. If you need accuracy get a real compass and make sure its calibrated and nowhere near a magnetic field...
terrytpot said:
Come on guys,get real...the compass "feature" is purely a typical iphone app and thats all it'll ever be...
Click to expand...
Click to collapse
True, but it is fairly useful for remembering where I parked the car while at the mall
terrytpot said:
Come on guys,get real...the compass "feature" is purely a typical iphone app and thats all it'll ever be...if you need serious accuracy you'ld be map relying on any electronic compass thats small and affordable enough to hold in your hand. If you need accuracy get a real compass and make sure its calibrated and nowhere near a magnetic field...
Click to expand...
Click to collapse
The compass hardware can be used for a lot more useful stuff.. Like a more accurate 'direction' in navigation programs.
BLAST3RR said:
Maybe you don't know what a figure-8 pattern is.
Mine always works inside, actually never even tried it inside.
Plus, there is an app available that will give the exact same possibility with nav software.
Click to expand...
Click to collapse
Very droll. Maybe you live in an empty house.
My point was that, unlike the N900, it wouldn't work in my living room.
I compared the HD2 compass directly to the app on an iPhone 3GS. The 3GS app was way more responsive, but both showed the EXACT same directions and were diverted the same way by magnetic interference.
The only problem I see is, that the app is quite slow, but other than that its not worse.
I compared it with the iPhone 3GS as well, and found both to have approximately the same accuracy and the same responsiveness.
Also both are heavily influenced by computers and other magnetic objects. Best results are obtained when outside without any electronic or metal objects around
If you guys want to combine the compass direction with gps navigation, have a look at GpsModDriver.
barty22 said:
both are heavily influenced by computers and other magnetic objects.
http://forum.xda-developers.com/showthread.php?t=571266
Click to expand...
Click to collapse
Remind me again exactly what the HD2 is,oh thats right,exactly what you need to keep the compass app away from...how you gonna manage that then?
(I've only used your post barty as it nicely sums up the problem with this sort of app...nothing personal intended before anyone tries to start the flames a burnin)
btw how does a digital compass works?
so is it true that our HD2 DC is FuBar
My digital compass also does not work other than with Google Earth! I just want it to show me my approx location and height for even in places without wireless signals. I've been doing the 8 thing all over with no success. Any solutions?
ara1 said:
My digital compass also does not work other than with Google Earth! I just want it to show me my approx location and height for even in places without wireless signals. I've been doing the 8 thing all over with no success. Any solutions?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?t=639828

What are your GPS Test results?

Download 'GPS Test' from the marketplace if you have not done so already and let it run for a while. What kind of snr numbers are you getting?
Right now I'm in my house on the second floor and the tablet is laying on my bed. The snr numbers are as follows. Of course they are a bit better outside, but this doesn't seem to bad. BTW, the case is a a RIOT folio case. I had to cut out a section at the top right because the light sensor was covered.
Rob

[Q] Thermometer

So I understand that the S4 has a thermometer? Does anybodys work right? Its 70 degrees right now and S health is showing 88.
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
geoldr said:
So I understand that the S4 has a thermometer? Does anybodys work right? Its 70 degrees right now and S health is showing 88.
Click to expand...
Click to collapse
The reading will reflect both the heat generated by the phone as well as any temp increase provided by your hand. It's probably even higher when the phone is first removed from your pocket. Not sure how it would ever be an accurate gauge of actual outside temp unless you left the phone setting untouched outdoors for a while.
I noticed the same thing, the temp reading is always way higher than the actual surrounding, seems pretty pointless to even include a thermometer is it reads the phones temp, and not the actual surrounding temp... Major fail on that one Samsung...
I'm pretty sure it's part of the barometer that's in the phone which also calculates humidity, pressure, etc and from what i can tell, those readings are pretty accurate.
tdesbien31 said:
I noticed the same thing, the temp reading is always way higher than the actual surrounding, seems pretty pointless to even include a thermometer is it reads the phones temp, and not the actual surrounding temp... Major fail on that one Samsung...
Click to expand...
Click to collapse
Many phones do include temperature and humidity sensors, but it's rather dumb of Samsung to try and use that temperature gauge for anything useful.
That said, it's good to have if you're overclocking, which unfortunately isn't possible yet (or necessary IMO)
danstheman7 said:
Many phones do include temperature and humidity sensors, but it's rather dumb of Samsung to try and use that temperature gauge for anything useful.
Click to expand...
Click to collapse
I disagree. Imagine hiking or other outdoor activities where you can hang the phone from your waist or backpack? It's like the Casio Pathfinder watches... they too read temperature way too high when you wear them on your wrist, but if you leave them on your backpack when hiking they read the air temp very accurately. I think Samsung did a very good job, considering that they have orders of magnitude way more hardware heat to deal with than Casio.
danstheman7 said:
Many phones do include temperature and humidity sensors, but it's rather dumb of Samsung to try and use that temperature gauge for anything useful.
That said, it's good to have if you're overclocking, which unfortunately isn't possible yet (or necessary IMO)
Click to expand...
Click to collapse
Most phones have temp sensor in battery or cpu. S4 has a separate sensor near the bottom of the phone. It will be inaccurate but less so then other phones. Haven't seen a phone with a humidity sensor (other then the water indicators but they are not electronical).
jsstp24n5 said:
I disagree. Imagine hiking or other outdoor activities where you can hang the phone from your waist or backpack? It's like the Casio Pathfinder watches... they too read temperature way too high when you wear them on your wrist, but if you leave them on your backpack when hiking they read the air temp very accurately. I think Samsung did a very good job, considering that they have orders of magnitude way more hardware heat to deal with than Casio.
Click to expand...
Click to collapse
Dumb as in the way it was implemented, not in the idea of using it. Adding such a sensor is a good idea, but if it's not in a location which will be very reliable, it's not very intelligent.

Spring contact not touching metal back

Hey, quick question. Is anyone else's spring terminal in the bottom-right-most corner too low to make contact with the back? Mine is and my gps seems a little inaccurate compared with other phones ive had in the past. Just wondering if this could be it.
There's lot of them. Bend then slightly up with a plastic knife something. Took my galaxy note 4 apart and did same thing to all the contacts. Got improved reception and GPS working again.
Yeah, I probed a little with a little pick tool but they're so small I need something even tinier like a sewing needle. And it looks like ill have better luck if I remove the back shell as there isnt much room to get at it as is. It is so low I wondered if it was intentional. Hence the reason I asked on here. When I look across the edge of the phone I can see the others peek above the plastic but this one shows nothing. Hope that makes sense, it is an awkward visual to describe.
I'm disappointed that I even have to consider opening my brand new expensive phone. But I also
dont want to fork over $20 to Tmobile to swap it. I've owned the G2 and the G5 before this and both of them had faults requiring replacement as well.
Mine is too, leave it
Hmm...strange. I just tested mine without my case or the battery cover, and my GPS locked on faster and better than it ever has since getting this phone. Seeing how recessed that connector is, I'd have to say it was intentional, though I'm not sure why it was made that way since there is a contact pad on the battery cover in that spot. I'm going to have to agree with wing_addict_usa, and say leave it as it is.
My gps sucks with just a simple plastic case on the phone. It goes bonkers. I swear it's the gyro/compass thing in the phone.
Did you calibrate it? And I didn't lay it on the camera lens. Just a flat surface with camera lens hanging off the edge.
Thanks for the replies, glad to know my spring comtact is normal. At least I can look elsewhere for the cause.
I've done the figure 8 calibration while in Google maps with no change. Using the "GPS Test" app it was struggling to stay under 35ft of accuracy.
The problem seems to be a little inconsistent though. After posting I was able to eventually get between 15 and 20 feet of accuracy. I wonder if it is emf noise while data polling or noise while charging that could be interfering with the reception of gps signal.
The poor reception occurred with my phone on a magnetic holder attached to my windshield driving on interstate highway. Other phones of mine normally get pretty good signal in that situation.
Ill keep an eye on it and post any new findings but for now I'm kinda stumped. GPS worked fine up until the day of my posting.
To be honest, I completely forgot about calibrating the GPS. It has been so long since I've had to do it since my last few phones had great GPS radios, and were accurate out of the box. I calibrated mine last night after having to look up how to do it again, and it seemed better this morning. Still not as accurate as the M8 I upgraded from, but now it's not all over the place like it was.
How do you calibrate it?
Just an update to my situation. I seem to be getting better reception now but not as good as my alcatel idol 3 5.5" . I can get down to 15ft of accuracy on the v20 and 10 ft accuracy on Idol 3 in same location.
Btw, The GPS antenna is located in the top plastic piece which has metal tabs that make contact with more of those metal springs. I removed mine and put it back on to see if I could get a better connection. It seemed pretty snug though and not much chance for a weak connection.
I'm not totally convinced that was the issue but I'm happy for now as the navigation seems to be more reliable.
Oh and the calibration is not the gps but the gyros so that the maps orientate correctly to the position your phone is in. Its done by moving the phone in a figure 8 pattern. There is also a leveling calibration in the menu somewhere that has you set the phone on known level surface and then press calibrate to zero the level to the phones position.
The figure 8 is the one I was referring to though and now that I think of it, not much use for GPS reception.

Original Tab S5e Cover very sticky [ Problem ]

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Update September 2 year 2019
Code:
Status: Solved
Final edit: Within 5 business days the replacement original Cover for the Tab S5e arrived, and I am happy to tell you it solved the problem. Evenmore, the second heat wave started 1 day later, and this replacement from another production day hold up strong without the issues mentioned below. The second heatwave reached 31 degrees Celsius (87.8 degrees Fahrenheit) inside my house, and it did not have the problem described lengthy below. Also now the weather has cooled down a lot and it is great it feels like dry rubber.
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Solved by swapping with another production date
I removed the Serial number of this individual Cover Case for the Tab S5e since swapping it did solve the problem. Also for others to read, you can ask for a replacement in similar circumstances mentioned a different production date. This unit is produced at an entirely different date, more than weeks later. Since I tested it even with the second heatwave, and it is now much more cooler, climate change affects us all, here we never reached such high temperatures before recording of temperatures started. And I am happy to have tested the replacement works as wished.
The story I think might be appropriate is that Samsung might produce for different climates, I did produce for example different kind of Chocolate in the Chocolate factory for different countries with my fellows.
Final words about my individual situation, I did not see even the second heatwave coming, so the replacement unit was put too the test right on.
I have the original Samsung Tab S5e cover for my Tab S5e tablet. The good news is the tablet works great.
Code:
Status: SOLVED
Code:
Original mention of this situation below
But I have a problem with the Tab S5e Cover, some call it sticky rubber, but I read some about production of artificial rubber and real rubber, and I think it is a procedure known as ' Reversion '. This means what goes right during production of the (semi)synthetic fabric inverses the fabric. Reasons are due to for example Sunlight, Oxygen or normal Air with normal Humidity or just your hands and fingers.
The original Tab S5e Cover is probably mainly made of a Thermoplastic elastomer.
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Thermoplastic elastomers (TPE), sometimes referred to as thermoplastic rubbers, are a class of copolymers or a physical mix of polymers (usually a plastic and a rubber) that consist of materials with both thermoplastic and elastomeric properties. While most elastomers are thermosets, thermoplastics are in contrast relatively easy to use in manufacturing, for example, by injection molding. Thermoplastic elastomers show advantages typical of both rubbery materials and plastic materials. The benefit of using thermoplastic elastomers is the ability to stretch to moderate elongations and return to its near original shape creating a longer life and better physical range than other materials.
https://en.wikipedia.org/wiki/Thermoplastic_elastomer
Since this cover is original and only a few months on the market, this natural process of Reversion should not happen at this product age. Products like this should for example show this only after many years or not at all.
The problem described in a practical situation, I take the tablet and open the Cover, I hold the tablet with the hands around the Cover. At first I notice nothing, but after an hour it is like as if the Rubber like Cover is melting and releasing some sort of glue, hence it at places where I touched it or hold it, feel like the backside of a poster sticker. These are products from fabrication probably reacting with even the small amount of heat and moisture that is continuously released from human hands.
The annoying thing mostly is after using the tablet my hands feel as if like under a glue sticky substance. I looked up what substances this could be and found after reading about Plastics and Elastomer this:
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Plasticizers (UK: plasticisers) or dispersants are additives that increase the plasticity or decrease the viscosity of a material. These are the substances which are added in order to alter their physical properties. These are either liquids with low volatility or solids. They decrease the attraction between polymer chains to make them more flexible. Over the last 60 years more than 30,000 different substances have been evaluated for their plasticizing properties. Of these, only a small number – approximately 50 – are today in commercial use.
https://en.wikipedia.org/wiki/Plasticizer
This substance that sticks on your hands should be removed before you eat.
Since I searched on the internet if other people have this problem, I found people with Laptops, Computer Mice, Computer Keyboards having these kind of problems too. They give each other advice how to clean it, etcetera, but I concluded that I should not do this. I should return it, but now is the problem I face clear.
Does swapping the Original Tab S5e Samsung Cover result in just an identical which then has the same problem? If so swapping it by sending it back is not the answer to this problem.
I called Samsung and they told me to swap it. In return I told, if I swap it now ( It was 24th of July 2019 and 33 degrees Celsius inside, 40 degrees Celsius outside ), wouldn't I have it swapped with an original from the same batch having the same problem? And I explained my Note 2012 tablet Original Samsung Cover never had this problem, and no other phone cover I had has this problem. They told me it was unfortunate, but no clear answer. It is logical that if I at that time would return it, it would be swapped from a same batch and same production month era, I would probably end up with the same problem.
Anyway I have to return this Original Samsung Tab S5e Cover, but what do I have to do? Is this just unfortunate coincidence? Or do all production batches of this Cover have this problem? And also if this happened so fast already, what will it be like in next year?
At local language forums I cannot find others who bought the original cover except for product reviews at a few websites, I could find under 20 reviews, with 4 stars average I suppose. But this problem is too complicated to put in a review.
You can find many results by searching a search engine for ' Sticky Rubber ' and you will find for example this, beside many people complaining about their computer products having it at products like a mouse, a keyboard, or a laptop.
I have once in the past had this too with a Mouse which I replaced with a new one. ( But not the same type. ) It is also happening in a product range of many brands, like Logitech, Microsoft, Hewlett Packard.
Cleaning procedure is not an option, since it is new, and it should not happen within such a short time. Actually the Note 10.1 from 2012 tablet Cover I have original too, proves that it does not have to happen at all.
The problem I also see, is you actually need to use the Tab S5e Cover to make the problem appear. Just touching the Cover doesn't make it clear. So if I send it back they might say, we see nothing wrong, they touch it and return it e.g. But this original Samsung Tab S5e cover I have does slowly react within hours with your hands and fingers.
EDIT1 This is placed in the wrong section of XDA and will be probably moved. Since this is not about developing software but the Cover case.
EDIT2 This might indeed be about development of a manufacturer, but related to hardware supplementals, a Moderator was asked to give it the right TAG.
Appendix: This tablet really needs a case to give it weight and something to hold, I don't experience any Wifi problem since my Router the ASUS AC66U has Beamforming. I have the 6GB Ram 128GB storage version. Wifi range is similar like 2012 Note Tablet and only little less than Galaxy S8 at 5 GHz Wifi. Make sure to have your router to have Beamforming enabled. And MIMO 2x2.
I have had my cover since launch day and do not have this issue. I usually take mine out of the cover when I use it for any length of time though. I'd definitely swap it out.
Ambient temperatures
May I ask what ambient temperatures you had since you got it? I will convert the temperatures into Celsius and Fahrenheit. The cover started feeling like a chocolate bar at 26 Degrees Celsius ( 78.8 degrees Fahrenheit ) at ambient room temperature. The first heat wave became 33 degrees Celsius inside ( 91.4 degrees Fahrenheit ). Outside it was 40 degrees Celsius ( 104 degrees Fahrenheit )
Although it still feels as if holding a chocolate bar, but without anything visible at the cover itself, provided I use it more than half an hour holding it.
Whatever is released on my hands is not visible, but describing it as if having hold a chocolate bar melting is the best description.
I indeed want to ask the reseller to swap it through Samsung itself, since I hopefully just happen to have a coincidence batch that does not fall into Samsung its standards.
If it would have been winter and snow outside, this might not have happened. Also I think about how it was shipped, perhaps in a very hot container, to my country.
The inside of the cover feels like the inside of my Galaxy S8, so the tablet itself is perfectly safe. At first I thought it might have been glue since inside the Cover are magnets and they must have been glued. Then I read how artificial synthetic rubbers are made and did read what I posted in the opening post.
Explained in opening post is also why during the heat wave I did not see swapping at that time a solution. I really hope to having a good version of this Cover, since it works great, and I don't use the tablet without it. The tablet is so tiny in weight despite it having a 10.5 Inch screen.
Ambient temperatures is what I would like to ask as said, Fahrenheit to Celsius or the other way around I can calculate at internet.
I have had it around 75F or 24C for 99% of the time. That could be the problem causing it to "melt" a bit...
Catmobile said:
May I ask what ambient temperatures you had since you got it? I will convert the temperatures into Celsius and Fahrenheit. The cover started feeling like a chocolate bar at 26 Degrees Celsius ( 78.8 degrees Fahrenheit ) at ambient room temperature. The first heat wave became 33 degrees Celsius inside ( 91.4 degrees Fahrenheit ). Outside it was 40 degrees Celsius ( 104 degrees Fahrenheit )
Although it still feels as if holding a chocolate bar, but without anything visible at the cover itself, provided I use it more than half an hour holding it.
Whatever is released on my hands is not visible, but describing it as if having hold a chocolate bar melting is the best description.
I indeed want to ask the reseller to swap it through Samsung itself, since I hopefully just happen to have a coincidence batch that does not fall into Samsung its standards.
If it would have been winter and snow outside, this might not have happened. Also I think about how it was shipped, perhaps in a very hot container, to my country.
The inside of the cover feels like the inside of my Galaxy S8, so the tablet itself is perfectly safe. At first I thought it might have been glue since inside the Cover are magnets and they must have been glued. Then I read how artificial synthetic rubbers are made and did read what I posted in the opening post.
Explained in opening post is also why during the heat wave I did not see swapping at that time a solution. I really hope to having a good version of this Cover, since it works great, and I don't use the tablet without it. The tablet is so tiny in weight despite it having a 10.5 Inch screen.
Ambient temperatures is what I would like to ask as said, Fahrenheit to Celsius or the other way around I can calculate at internet.
Click to expand...
Click to collapse
Return to swap
nsx2brz said:
I have had it around 75F or 24C for 99% of the time. That could be the problem causing it to "melt" a bit...
Click to expand...
Click to collapse
Production date of cover: 2019-04-11
Code:
SERIAL NUMBER removed
I have scheduled it to ask for the same cover, but from another production date. Also I do think that if it were winter from the beginning since I had this original cover, it would have had time to harden out inside for many days. My original cover from the Note 10.1 from 2012 was bought e.g. in December 2012 during winter and I did not have it, even not today.
The temperatures have dropped, inside it is now 21 Degrees Celsius, it is however still is existing, but not visible with the eye or camera, the material seems well still.
Samsung also told me to swap it. The reseller contact said I could send it back and what option I would like. That being said,
* Same cover, by manufacturer warranty
* Different production date
I use the keyboard cover. No issue at all.
I had the standard cover, since I use the tablet for media consumption only. I asked especially for manufacturer warranty because Samsung makes the originals. In my country the cover was later than the release of the tablet itself, hence I was or am an early adaptor here.
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Status: SOLVED

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