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[Q] Snapdragon S4 unlock GLONASS ?

Hi, i am new here thefore i cant post in "One S Android Development"
I KNOW that (HTC one s)Qualcomm Snapdragon S4 has support for GLONASS. can it be unlock ?
anyone known what soundchip it got onboard also ?
Appreciate the help.

Are you sure it needs unlocking? Mine said on the box "Supports GPS/GLONASS". Not that I have any idea how to check.
Sent from my HTC One S using XDA

Download GPS test from the market.
Fire it up and see if you log any satellites numbered 65 to 88.
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My Htc one s, havnt arrive yet, i still waiting, i think it would come next week, then i can do the gps testing. It would be nice to hav a good gps.
I am using Samsung galaxy s1 and its worthless in sweden..
Btw i hope Snapdragon s4 get Wolfson audio chips

My HOS IS showing satelites number 69 and 71... are those GLONASS sats

Out of 15 satellites that I could see, 6 were #65 or over. Looks like GLONASS is working fine.
Edit: Just to clarify, I'm in Japan, but my phone came from the UK so is the European model (No One S for the poor Japanese, lol)

So it works completely transparently to the user and does not need special software or adjustments, it will just work by "supplementing" the accuracy reported through the GPS interface and therefore also every navigation software etc. will automatically benefit from it?
That is kinda cool if its the case.

This is going to be GREAT for once i can use "GPS" correctly in sweden, anyone knowns more about the Sound chips onboard the S4 ?

psych0t1c said:
So it works completely transparently to the user and does not need special software or adjustments, it will just work by "supplementing" the accuracy reported through the GPS interface and therefore also every navigation software etc. will automatically benefit from it?
That is kinda cool if its the case.
Click to expand...
Click to collapse
Yup, looks like it. There is no separate setting to "Enable GPS" / "Enable GLONASS". Although rather than being transparent to the user, it is more like hidden from the user. I guess the average user neither knows nor cares about GLONASS, as long as the thing shows them where they are on the map.

I do not get satellites > 28, but total 22 visible and 14 in use.
Don't know if GPS or GLONASS - but 22 are a lot

My HOS consistently sees ~17-21 even when indoors although while indoors I get no GPS lock even though GPS Test says that it uses ~5 satelites. But once I take it to a window it gets a good lock immediatly.
My old Desire and my TF101 only sees ~4-5 when doing the same test. So it seems that the HOS really are using GLONASS too.

Yes they do. With GPS only I never had a situation where I could "see" more than 6-8 sats at once with a mobile and not all of them had a fix/lock because the signal was too weak (only once supposedly had 9, reported by an Audi in-car satnav with dedicated external antenna, but I am not sure if that was fixed sats or just the visible ones). I think as of now I think there are less than 30 functional sats in orbit globally and the GPS architecture hovers around an amount of 32-36 sats maximum (with higher coverage of landmasses and lower coverage on the oceans).
Also, GLONASS will be very beneficial to anyone in the upper northern hemispere, and lower southern hemispheres as the system is of course globally active, but due to sat orbit inclination and distance (orbit heigth) it allows a better coverage of the regions closer to the polar regions, while GPS seem to be more designed to cover the "middle ground" and also have a lower orbit.
And when the US went to war in the middle east, I think I have read about some of the satellites being repositioned to give a better signal feed to the troops and equipment in that area, therefore automatically neglecting the rest of the world a little bit.
This is a really good feature I did not even read about in the reviews prior to purchasing. I pity the folks with the One X who don't have that... It will double satnav usability and accuracy even in less than optimal conditions (cities with high buildings covering satellite line of sight etc.)

8 GPS problems, advice. & questions (xtra, agps cache, epo, hardware,

1) It could actually be hardware.
On my i9000 the rubber connector between the case and the board had failed. Trying to solder a spring onto it appeared to burn out the chip completely.
Try another device in the same place. Looking at my Nexus I see a spring connection to the back case for some kind of ariel. Not sure if it's for the GPS. Q: Can we connect an external GPS antenna to help test this variable? Most people have tested this by breaking the connection between the mainboard and the antenna. It's a slow process unfortunately.
i9000 hardware GPS problem:
http://forum.xda-developers.com/showthread.php?t=1697217
Nexus S 4G CDMA (i9020a) link to same problem
Page 5 has links to internal diagrams and mention of NFC antenna getting magnetised affecting compass.
2) No GPS in the sky (or not enough of them). Go as far North as Northern Norway or Alaska and you can have troubles.
Try another device in the same area. Cloud cover will degrade the signal, so will trees. Q: Better way to test without standing out in the rain?
3) AGPS cache has crap in it.
Do a AGPS reset.
4) AGPS server connectivity. Could be a GPRS problem. Could be WiFi problem. Could be at the server. Check what server you're using to see if you can contact it from the phone. Q: Is ping a good way to check?
5) EPO server fails. Perhaps md5sum is broken:
http://forum.xda-developers.com/showthread.php?t=1975500
YGPS and the engineering menu on mtk65** phones is very useful. EPO downloads a map of where satelites are expected to be so the GPS then know exactly what to expect. The list is updated once per day. Q: I'm only aware of this on Mediatek phones?
6) GPS works better when moving.
If you have
### ROOTED SAMSUNG GT-I9100/GT-I9100T/GT-I9100G/SGH-I777 or GALAXY NEXUS DEVICE REQUIRED ###
Try: GPS Control SiRF
^ We need a better version of this app to work with more phones.
7) Some radios are better than others. This is where it gets difficult. Is there a single phone out there with open source GPS drivers? (not geeksphone afaik). The GPS code AFAIK is in the modem image, totally closed. Perhaps there's a way to generate a GPS signal to test with?
- If the worse comes to the worst you can always buy a Bluetooth GPS module to lug around and use that. I didn't have success with Cyanogenmod's built in external GPS in the settings so I used "Bluetooth GPS" on one phone and "Blue GPS" on another.
- I've heard GPS doctor (aids?) is a good app but expensive so not much use for diagnosing different phones all day. This XTRA download thing I don't fully understand.
- finally, do you know of a recent small screen phone with a good & reliable GPS?
update:
I will update this post as I find info along the way.
Basically what appears to be a big source of difficulty diagnosing errors is that there is no way to isolate the ariel as a problem. The Android API doesn't include access that low level.
from:
http://stackoverflow.com/questions/4250434/how-can-i-get-the-gps-raw-data-satellites-pseudo-range
Code:
Satellites pseudo-ranges are not available in the official API, neither through the GpsStatus.Listener nor the GpsStatus.NMEAListener interfaces.
The only available info available in the GpsSatellite class are:
PRN
azimuth
elevation
C/N0
a "usedInFix" boolean.
The Android source code asks just those fields from the native code, so no hope to get it from any other Java API.
The best way for you to get this data anyway (which is not suitable for a Market-able application) would be to explore Android source code, and either find a native hook to get the data at low level and access through JNI, or recompile the full OS modifying the API to your needs (you also need to find the relevant native code for that).
Finally, if you can get the chipset to send you GRS NMEA sentences (you would get them through the standard NMEAListener interface, the difficulty is configuring the chipset to send them) you can then compute the pseudo-ranges (those sentences contain satellites' residuals)
Good luck and let me know if you try any of these ideas!
update 2:
The connector on phona mainboards (assuming you have one) is "UFL". The connector on some GPS external ariels is MMCX. The bigger connectors are SMA. If you want to connect a external GPS antenna for testing without soldering you probably need a UFL to MMCX pigtail.
Plugging in UFL connected external ariels may help with diag for the various radios.
I have only 2 satelites seen on mine. I've bent the print connector up to touch the ariel a little harder but still it's a bad connection (presumably). I am thinking of ordering:
http://www.hwkitchen.com/products/mini-gps-antenna-embedded-ufl/
just to test it and confirm.
I'm guessing a magnetized NFC ariel wouldn't cause this. Removing the back (which has the NFC Ariel is) hasn't helped anyway even though the magnetometer does respond to taking the back off.
"file create fail" is what I get in trying to run the antenna test with LBSTestMode.
This hardware fix doesn't seem to be intended for the 4G but I tried it anyway:
http://forums.androidcentral.com/sp...llly-fix-nexus-s-gps-hardware-mod-needed.html
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Is there a better way to test? I'd like to see the raw data that the GPS is getting from satellites too see how it is caluculating the position but I don't think that's possible.

To help you with testing Droid VNC Server can be useful - you can then connect to your phone when it's outside over wifi while you sit in the warm. But be careful because if your wifi connection breaks I notice it then starts listening on your 3G/4G connection, open to the world.
Likewise adb screen monitor over wifi is a security risk too.
Generally the first thing to try is to clear the agps cache using gps status and then redownload it and leave it with a view of the clear sky for 20mins.
Some more links (testing url shortening service too)
http://bit.cur.lv/droidvncserver
http://bit.cur.lv/adbScreenMonitor
http://bit.cur.lv/adbScreenMonitoring
http://bit.cur.lv/sirfTweakExample

MI4C - Weak GPS signal

Hi,
I have a problem with my mi4c and GPS module.
I compared with redmi 1S a nd Samsung S3 and both of them have better GPS signal.
I have set High accuracy mode and applications has permission to gps.
Is there some ways to detect if my mi4c has defect on gps module?
I am not able to post images so I am posting only links
http://s24.postimg.org/omvdqhr91/mi4c.jpg
http://s24.postimg.org/fqklmk0mt/mi4c.png
http://s24.postimg.org/r1n9ax7hx/mi4c_2.png
http://s24.postimg.org/xj65ufhv9/redmi1s.png
http://s24.postimg.org/lc70qm1bp/redmi1s_2.png
http://s11.postimg.org/5m0txdf8z/2015_12_23_15_52_46.png
http://s24.postimg.org/4w35kmhit/Samsung_S3.jpg
There is comparesd redmi 1s with mi4c same location same time
http://s17.postimg.org/vlh3nficf/1sgps.png
http://s17.postimg.org/8y1uha2sf/mi4gps.png

Doesn't seem to be a problem, connecting to 11 out of 13 satellites is pretty good.

Well it looks like in open are it is not so much problem, but signal is more weak if you compare to another phones.
When I move to center of town it is not very hard to establish gps connection. (I am ingress player and this is important for me)
Can you tell me why Redmi 1S has stronger values even if this is older model and with MTK chipset?
I can try in a week go to town center and try to make some screenshots compared with Redmi 1S and link to google maps or can you give me some advice how to detect what is wrong.... like compare with another mi4c?

Yeah I found out that too... compared to my previous phone (Moto G 1st gen) Mi4c has a weaker GPS reception and causing longer GPS lock.
I'm on Mokee ROM now since I can't stand MIUI and GPS is worse than on MIUI. I managed to make it a bit better by using faster gps apps and gps.conf from MIUI. Also try using GPS status & toolbox app, if that doesn't help at least you got a status notification when the GPS active.

So it looks like mi4c has generally weaker GPS and it is not software or hardware defect, but "feature" from vendor?

I'm under sMIUI and first time GPS lock was very long, but ever since that, it locks in just 1-2 seconds.

Today I was on a trip with car and trying GPS fix...
I recorded video of the screen and very often GPS fix was lost or it was inaccurate.
Video: http://uloz.to/xkEFhqQo/mi4c-mp4
As you can see on the video GPS is useless, I am starting to be disapointed of this model
Route on google maps is here: https://www.google.cz/maps/dir/Zast...3e0!2m2!1d16.3631011!2d49.1879961!1m0!3e0!5i2

Is it possible that the GPS on your unit is defective?
It wasn't that bad on mine. I'm using my phone to track my ride using Strava and the record shows spot on position.

Its really bad on mine. Tried sMIUI, TS CM 12.1 and TS CM 13. Looks like we are doomed

I'm getting awful GPS signal. I connect to 8/13 satellites but my position isn't precise at all -- error of 2.50 km, that's not good at all.
I tried using it today during a car trip and GPS signal would not update.
See screenshot
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What could be done to better the situation?
Sent from my Mi-4c using Tapatalk

I'm also with this problem because of Xiaomi not corrected this I am not playing Pokémon go
Enviado de meu Mi-4c usando Tapatalk

The GPS is weaker than on my Huawei P8 Lite indeed. Haven't really tested it, but signal strength is a bit worse.

Same here. Rarely get less than 30 feet GPS location

This may sound weird, but my GPS actually works pretty well, but ONLY if I disable all NTP_server=xxx.pool.ntp.org listings in gps.conf. Earlier my phone refused to find any gps satellites, but now that I have all NTP_servers disabled (including the test server...time.gpsonextra.net), everything's working like a charm (this with Mokee ROM).

sbasil said:
This may sound weird, but my GPS actually works pretty well, but ONLY if I disable all NTP_server=xxx.pool.ntp.org listings in gps.conf. Earlier my phone refused to find any gps satellites, but now that I have all NTP_servers disabled (including the test server...time.gpsonextra.net), everything's working like a charm (this with Mokee ROM).
Click to expand...
Click to collapse
Yes it´s weard, but that´s the solution for that phone. That fixed my GPS! Thanks so much! Just deleted everthing with NTP and now GPS works like a charm. Never worked so fast and precise.

Voodoojonny said:
Yes it´s weard, but that´s the solution for that phone. That fixed my GPS! Thanks so much! Just deleted everthing with NTP and now GPS works like a charm. Never worked so fast and precise.
Click to expand...
Click to collapse
Awesome! I'm glad if it solved your GPS issues. It's still not the most powerful GPS out there, but at least it works.

GPS is definitely weaker than other devices indoors. Outdoors is okay. This app helped me get a faster lock in MIUI 8.05 stable:
https://play.google.com/store/apps/details?id=org.fastergps

Battery Drain + Bluetooth

Apologies everyone for YET ANOTHER battery life thread -- I hope mine's slightly more actionable.
I've isolated my battery drain issues to bluetooth. As long as BT is on, my battery drains approx 4-6%/hr. With BT off, it's more like 1%/hr. It doesn't matter if I have devices paired or not, and nearby device scanning doesn't make much of a difference (but I keep it off).
1) Does anyone know why this is happening? Is anyone else having this problem or found a fix
2) I primarily use bluetooth in the car, but having to manually turn it on and off each time is a pain. Can anyone think of a Tasker profile that might automate this for me? Unfortunately, my cars are parked within range of my Wifi, so that's not an option.
Thanks everyone!

Not sure if I'm right...but did you check in settings -> more connection (1st screen)-> looking for devices (2nd) if it is active or not (3rd)?
Sorry for my bad English...I'm Swiss ?
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Gesendet von meinem SM-G930F mit Tapatalk

Your English beats the heck out of my German.
Yeah, it's called "Nearby device scanning" on the English phones, and I have it turned off.
Also just pulled the new VZW update. Things seem worse now than they were.

Cinco5 said:
Apologies everyone for YET ANOTHER battery life thread -- I hope mine's slightly more actionable.
I've isolated my battery drain issues to bluetooth. As long as BT is on, my battery drains approx 4-6%/hr. With BT off, it's more like 1%/hr. It doesn't matter if I have devices paired or not, and nearby device scanning doesn't make much of a difference (but I keep it off).
1) Does anyone know why this is happening? Is anyone else having this problem or found a fix
2) I primarily use bluetooth in the car, but having to manually turn it on and off each time is a pain. Can anyone think of a Tasker profile that might automate this for me? Unfortunately, my cars are parked within range of my Wifi, so that's not an option.
Thanks everyone!
Click to expand...
Click to collapse
I had the exact same issue with bluetooth battery drain. I posted something about it a while back. I never found a solution. I had to install an app called autobluetooth to turn off and on the bluetooth automatically. I use bluetooth mainly in my car and I use a wireless charger in my car. I set the bluetooth to only turn on while charging and my problem is solved. I drain about 1-2% per hour with the bluetooth off and about 3-4% per hour with it on.
Hope this helps.

Yeah, that wont work for me. Thanks anyway.

I think I am having the same problem since the update when I use my BT at work it's draining get horribly and getting hot. I really don't want to factory reset I just got everything how I wanted.
Sent from my SM-G930V using XDA-Developers mobile app

OK, so I think I found it. I enabled developer mode, and killed the Gattservice under Bluetooth Share. So far, things seem a lot better.
I have no idea which app is enabling that service, so unfortunately, I have to kill it each time I reboot the phone, but I can cope with that. It doesnt seem to affect anything else thus far.
I'll update again in a few hours. I'm only about 6 hours into this test.

Cinco5 said:
Apologies everyone for YET ANOTHER battery life thread -- I hope mine's slightly more actionable.
I've isolated my battery drain issues to bluetooth. As long as BT is on, my battery drains approx 4-6%/hr. With BT off, it's more like 1%/hr. It doesn't matter if I have devices paired or not, and nearby device scanning doesn't make much of a difference (but I keep it off).
1) Does anyone know why this is happening? Is anyone else having this problem or found a fix
2) I primarily use bluetooth in the car, but having to manually turn it on and off each time is a pain. Can anyone think of a Tasker profile that might automate this for me? Unfortunately, my cars are parked within range of my Wifi, so that's not an option.
Thanks everyone!
Click to expand...
Click to collapse
Which is the model of your phone?

I have the exact same issue. It started about a month back for me. I'm on the T-Mobile variant. I saw that Bluetooth share had high usage, so killed it and deleted data in that app. I suspect it might be a BLE app that I use - payrange.

Question GPS Problem Joying JY-UL128N2 Android 6

Hello to all. I have a big problem with my unit's GPS signal. I have tried various firmware with Android 6 and various MCUs but always with the same result. My problem is that randomly, after hooking up the GPS signal, the signal is lost and no longer hooked. The bars in the GPS screen are not active and do not even activate with a good position. I have read about other forums on this issue, but no solution has been found. I do not think it's in the HW problem, maybe some of the SW crashes and do not recover.
Thanks for anyone who can help me.

killerpiller said:
Hello to all. I have a big problem with my unit's GPS signal. I have tried various firmware with Android 6 and various MCUs but always with the same result. My problem is that randomly, after hooking up the GPS signal, the signal is lost and no longer hooked. The bars in the GPS screen are not active and do not even activate with a good position. I have read about other forums on this issue, but no solution has been found. I do not think it's in the HW problem, maybe some of the SW crashes and do not recover.
Thanks for anyone who can help me.
Click to expand...
Click to collapse
I tried to disable two cores and lower the CPU frequency to 900Mhz with Kernel Adiutor (ROOT), I managed to get to a 60 degree centigrade temperature, believing the problem was temperature but the GPS problem reappears.

killerpiller said:
I tried to disable two cores and lower the CPU frequency to 900Mhz with Kernel Adiutor (ROOT), I managed to get to a 60 degree centigrade temperature, believing the problem was temperature but the GPS problem reappears.
Click to expand...
Click to collapse
.
Have you checked your GPS cable? It could be (partially) broken somewhere internally. When driving it might start to swing and loose connection. Please try with the cable in your hand and make gentle bends over the cable length. See if you loose signal.

surfer63 said:
.
Have you checked your GPS cable? It could be (partially) broken somewhere internally. When driving it might start to swing and loose connection. Please try with the cable in your hand and make gentle bends over the cable length. See if you loose signal.
Click to expand...
Click to collapse
I lose connection even when the car is off and stops, without movement. It does not seem like a cable problem, I was thinking of a problem with some service on Android that randomly interfere with GPS.

killerpiller said:
I lose connection even when the car is off and stops, without movement. It does not seem like a cable problem, I was thinking of a problem with some service on Android that randomly interfere with GPS.
Click to expand...
Click to collapse
Carjoying support advised me to check this out.
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I was suggested to verify that the GPS slot has 3.2 voltage.

killerpiller said:
Hello to all. I have a big problem with my unit's GPS signal. I have tried various firmware with Android 6 and various MCUs but always with the same result. My problem is that randomly, after hooking up the GPS signal, the signal is lost and no longer hooked. The bars in the GPS screen are not active and do not even activate with a good position. I have read about other forums on this issue, but no solution has been found. I do not think it's in the HW problem, maybe some of the SW crashes and do not recover.
Thanks for anyone who can help me.
Click to expand...
Click to collapse
FYI: The gps is on the SoM, not the mainboard. That means that the MCU has absolutely no relevance to it.

Is there a solution found for this? Is it really caused by the 3.2V?

Can you tell me about the fix? I have the same problem on erisin unit for e46, sometimes it works i have signal, sometimes no signal... And it stay with no signal untill the car is off for 2-3 hours, from where shoud i start?

I have this same problem but on a brand new Joying Android 10 unit.

TheOtherLeft said:
I have this same problem but on a brand new Joying Android 10 unit.
Click to expand...
Click to collapse
Send it back.