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[Q] Problem with GPS after flashing revolution XE ROM

Yesterday I flashed the Sensation Revolution XE ROM 3.6.2 and the recommended radio. Today my GPS is really screwed up. It is taking about 15 minutes to make a connection. The phone will very quickly pick up 9 or 10 satellites but will not connect. I installed the Faster Fix app and that seems to help pick up the satellites faster, but still no connection for 15 to 20 minutes. Anyone else with this problem and is there anything I can do short of going back to the stock ROM?

stev32k said:
Yesterday I flashed the Sensation Revolution XE ROM 3.6.2 and the recommended radio. Today my GPS is really screwed up. It is taking about 15 minutes to make a connection. The phone will very quickly pick up 9 or 10 satellites but will not connect. I installed the Faster Fix app and that seems to help pick up the satellites faster, but still no connection for 15 to 20 minutes. Anyone else with this problem and is there anything I can do short of going back to the stock ROM?
Click to expand...
Click to collapse
Do you know what ril you have with that recommended radio? I have heard that the radio and ril's need to correspond to work efficiently. Also keep in mind that kernel's also have a factor as well.
My hunch is that it's the kernel that the rom is using.

The kernel version is 2.6.35.14-sensation-faux 123-v0.2.1+.

I just discovered the MD5 checksum from the file on the download site and the file on my computer do not match. What can I do about that and how can that happen?
Sorry they do match - I was checking the zip file not radio.img

I know for a fact that faux kernels do not play well with the gps.conf files (well for me anyway, Im on tmous). Have you tried other kernels or even reverted to stock kernel. Reboot and try to get a lock.
I use gps status app to see if I can get locks and works for me.

kpjimmy said:
I know for a fact that faux kernels do not play well with the gps.conf files (well for me anyway, Im on tmous). Have you tried other kernels or even reverted to stock kernel. Reboot and try to get a lock.
I use gps status app to see if I can get locks and works for me.
Click to expand...
Click to collapse
I can get a lock, but it takes a very long time - maybe 15 - 20 minutes. I would like to go back to the stock kernel and downloaded the file to my PC, but the instructions for flashing are very vague to me:
How to use:
1. Download kernel package
2. Flash in recovery
3. Done!
4. You can adjust OC settings using Daemon Controller application (find it in your app drawer)
1. should the package be downloaded to the PC or the phone? And should it be extracted?
2. How exactly does one "Flash in recovery"

stev32k said:
I can get a lock, but it takes a very long time - maybe 15 - 20 minutes. I would like to go back to the stock kernel and downloaded the file to my PC, but the instructions for flashing are very vague to me:
How to use:
1. Download kernel package
2. Flash in recovery
3. Done!
4. You can adjust OC settings using Daemon Controller application (find it in your app drawer)
1. should the package be downloaded to the PC or the phone? And should it be extracted?
2. How exactly does one "Flash in recovery"
Click to expand...
Click to collapse
Flashing a kernel is very much like flashing your rom. Just download the kernel, which would be a zip file. DO NOT extract it. Then put the zip file on your SD card. Keep a current copy of the faux kernel to rever to it or have a nandroid handy before flashing anything!
Go to recovery, clear cache partition AND dalvik cache (under advance). Don't worry your apps and settings won't get erased. Then after those two steps, go to install from zip from sd card.
Choose the kernel and flash from there. Once the script has completed installing, just reboot the phone.
Try out your phone to ensure you can use it first off. Then if it looks, feels ok, then try out the gps in an open area with a direct line to the sky. Let me know if it helps!
FYI: for what it's worth, I don't mess with overclocking at this point. Just a personal preference.

This is not looking good. After flashing the kernel the phone will not boot up. It has a white screen with htc letters on it and it's been like that for several minutes now.
What do I do now?

stev32k said:
This is not looking good. After flashing the kernel the phone will not boot up. It has a white screen with htc letters on it and it's been like that for several minutes now.
What do I do now?
Click to expand...
Click to collapse
Some times the boot screen shows for a while when installing a new kernel and after clearing the caches. Is it boot looping? If not then, go back to your pc, bring up a dos window. type in adb reboot recovery. That should bring you up to clockwork recovery. And revert back to the prior kernel or just flash the rom over with just a cache wipe and dalvik cache.
If the dos screen doesn't recognize the phone, simply take the battery out, put it back in and hold the power and volume down button at the same time. That brings you into recovery as well.

OK, I'm back in business. I reinstalled the ROM and the phone booted up. Now about that kernel. Should I just try again or is there a plan B?

stev32k said:
OK, I'm back in business. I reinstalled the ROM and the phone booted up. Now about that kernel. Should I just try again or is there a plan B?
Click to expand...
Click to collapse
Did you get the stock kernel from here?
http://forum.xda-developers.com/showthread.php?p=16419842#post16419842
Plan b would be replacing the gps.conf file on the phone. Are you up for it?
http://forum.xda-developers.com/showthread.php?t=1262652

stev32k said:
Yesterday I flashed the Sensation Revolution XE ROM 3.6.2 and the recommended radio. Today my GPS is really screwed up. It is taking about 15 minutes to make a connection. The phone will very quickly pick up 9 or 10 satellites but will not connect. I installed the Faster Fix app and that seems to help pick up the satellites faster, but still no connection for 15 to 20 minutes. Anyone else with this problem and is there anything I can do short of going back to the stock ROM?
Click to expand...
Click to collapse
Hi, stev32k
I was having the same problem with you initially when using ARHD 3.6.2. I tried many methods including your mentioned faster fix app but to no avail. Even modifying the gps.conf file did not help. Later on i went to flash radio and kernel but that did not change anything.
After searching all around, I found out the solution to my problem by accident. As some of my Apps were having FC's with superuser, i decided to uninstall the superuser updates and revert back to the old version. Coincidentally, after the uninstall of the updates, my GPS lock on timing became super fast and within 20 seconds a lock.
I thus came to the conclusion that somehow, superuser version 3.0.5 causes some GPS locking problem. Perhaps you might want to try to remove this update too and see how it goes?
Let me know if this solves your problem too.

thunderskain said:
Hi, stev32k
I was having the same problem with you initially when using ARHD 3.6.2. I tried many methods including your mentioned faster fix app but to no avail. Even modifying the gps.conf file did not help. Later on i went to flash radio and kernel but that did not change anything.
After searching all around, I found out the solution to my problem by accident. As some of my Apps were having FC's with superuser, i decided to uninstall the superuser updates and revert back to the old version. Coincidentally, after the uninstall of the updates, my GPS lock on timing became super fast and within 20 seconds a lock.
I thus came to the conclusion that somehow, superuser version 3.0.5 causes some GPS locking problem. Perhaps you might want to try to remove this update too and see how it goes?
Let me know if this solves your problem too.
Click to expand...
Click to collapse
I am also having problems with superuser. It seems to be the update because when I uninstall the update it quits force closing every time it's called on. Someone mentioned going to a version 2.?, but I can't any of the earlier versions. I would be grateful if you could post a link to one of the older versions.
I have not tried GPS since uninstalling the update, but will give it a try later and let you know if it helped.

kpjimmy said:
Did you get the stock kernel from here?
http://forum.xda-developers.com/showthread.php?p=16419842#post16419842
Plan b would be replacing the gps.conf file on the phone. Are you up for it?
http://forum.xda-developers.com/showthread.php?t=1262652
Click to expand...
Click to collapse
Yes, I got the file from the place you linked to and I am up to replacing the GPS config file. Will give that a shot shortly.

I think I can confirm thunderskain's problem with the GPS / superuser interference.
I uninstalled the superuser update, turned on GPS, then started GPS status. It found 6 satellites and got a lock in 19 seconds while inside. I repeated turning GPS off and on and call up GPS status 5 times without the superuser update and the lock times were never more than 19 seconds and a couple were under 10 seconds. The average was 10 seconds, the high was 19, the low was 5.
Next I rebooted, opened up root explorer and it got superuser permission. Then I repeated the GPS on/off and calling up GPS status 5 times. The lock times ranged from 81 seconds to 11 seconds. The average was 45 seconds.
Next I tried to remove and allow superuser permissions until superuser started giving the force close errors then repeated the same testing procedure of turning GPS on and off and measuring lock times. For 5 repeats the average was 65 seconds the high was 97 and the low was 29 seconds.
The final test was to remove the superuser update, reboot the phone and repeat the testing procedure again. This time the average of 5 tries was 12 seconds, the high was 23, and the low 4.
As a result of this I am convinced the Superuser app is interfering with the GPS function. I cannot explain why the lock times were in the 15 minute range yesterday and the longest today was in the 90 second range. That's a big difference so something else was going on yesterday that is not happening today.

stev32k said:
I think I can confirm thunderskain's problem with the GPS / superuser interference.
I uninstalled the superuser update, turned on GPS, then started GPS status. It found 6 satellites and got a lock in 19 seconds while inside. I repeated turning GPS off and on and call up GPS status 5 times without the superuser update and the lock times were never more than 19 seconds and a couple were under 10 seconds. The average was 10 seconds, the high was 19, the low was 5.
Next I rebooted, opened up root explorer and it got superuser permission. Then I repeated the GPS on/off and calling up GPS status 5 times. The lock times ranged from 81 seconds to 11 seconds. The average was 45 seconds.
Next I tried to remove and allow superuser permissions until superuser started giving the force close errors then repeated the same testing procedure of turning GPS on and off and measuring lock times. For 5 repeats the average was 65 seconds the high was 97 and the low was 29 seconds.
The final test was to remove the superuser update, reboot the phone and repeat the testing procedure again. This time the average of 5 tries was 12 seconds, the high was 23, and the low 4.
As a result of this I am convinced the Superuser app is interfering with the GPS function. I cannot explain why the lock times were in the 15 minute range yesterday and the longest today was in the 90 second range. That's a big difference so something else was going on yesterday that is not happening today.
Click to expand...
Click to collapse
Thanks Nice to know it helped. Hoped this superuser bug can be fixed soon in the new updates.

stev32k said:
Yes, I got the file from the place you linked to and I am up to replacing the GPS config file. Will give that a shot shortly.
Click to expand...
Click to collapse
Would this help?

kpjimmy said:
Would this help?
Click to expand...
Click to collapse
Yes, I think that will help. Now how do I install it?

stev32k said:
Yes, I think that will help. Now how do I install it?
Click to expand...
Click to collapse
I'm guessing its a normal apk install. Meaning put the sucker on the sd card and click install with root explorer or the like.

kpjimmy said:
I'm guessing its a normal apk install. Meaning put the sucker on the sd card and click install with root explorer or the like.
Click to expand...
Click to collapse
Thanks, I was just kidding. I used easy install and it's already installed.

[Q] Can't lock on to gps MIUI???

I have the MIUI Freshly Squeezed but I can't get a GPS lock. I can't even get it. I tried the way posted on xda that seemed to work for a lot of people but it didn't work for me. Any ideas???

http://forum.xda-developers.com/showthread.php?p=17081413
This always works for me on CM7.1. I know MIUI is based on CM, so it's worth a try.

spiderxpig said:
I have the MIUI Freshly Squeezed but I can't get a GPS lock. I can't even get it. I tried the way posted on xda that seemed to work for a lot of people but it didn't work for me. Any ideas???
Click to expand...
Click to collapse
You "tried the way posted on xda that seemed to work for a lot of people but it didn't work for me"..thank you soooo much for the detailed description of what that method was haha. There are a good amount of fixes out there for GPS and you provided nothing as to what you have actually tried so i'll just assume you did nothing and start at zero.
1. try Crypted's AGPS fix in the dev thread. It works.
2. if you're using a case and it covers the space between the flash and camera, take it off and try to get a lock either before or after using crypted's AGPS fix
3. try the other guys method above me.
4. buy a map.

forgot to mention
5. Go outside with your phone.
but yea as mentioned we need to has more details from you. How you rooted, how you flashed your rom
also you didnt restore any settings from a previous rom did you?
i was a noob over the weekend and restored wifi passwords that werent compatible and broke my wifi radio. had to wipe and reflash lmao. just making sure u didnt restore anything relating to maps or gps

Darunion said:
forgot to mention
5. Go outside with your phone.
but yea as mentioned we need to has more details from you. How you rooted, how you flashed your rom
also you didnt restore any settings from a previous rom did you?
i was a noob over the weekend and restored wifi passwords that werent compatible and broke my wifi radio. had to wipe and reflash lmao. just making sure u didnt restore anything relating to maps or gps
Click to expand...
Click to collapse
ppffft you nooooob

Custom Roms make Moto G GPS fail

I have flashed several roms but I lose GPS signal on them all. I restore stock rom and GPS works great.
Anyone have same issue?

Yes most custom Roms give me the same problem.
Just like wifi not able to get it working.
By now the stock rom 4.4.4 is the best one for me.

Holysmoke99 said:
I have flashed several roms but I lose GPS signal on them all. I restore stock rom and GPS works great.
Anyone have same issue?
Click to expand...
Click to collapse
No issue with the latest Carbon. Just make sure you have GPS fix on Stock. Than flash custom rom and wipe dalvik/cache.

Holysmoke99 said:
I have flashed several roms but I lose GPS signal on them all. I restore stock rom and GPS works great.
Anyone have same issue?
Click to expand...
Click to collapse
The only solution I found for this was going back to stock, use the GPS, and then flash the custom rom again (without wiping /system!).
It worked for me and other users as well.
I'm currently on PA without any GPS problem.

t4n017 said:
The only solution I found for this was going back to stock, use the GPS, and then flash the custom rom again (without wiping /system!).
It worked for me and other users as well.
I'm currently on PA without any GPS problem.
Click to expand...
Click to collapse
no problems with bugs no wiping?

Holysmoke99 said:
no problems with bugs no wiping?
Click to expand...
Click to collapse
I did wipe, but not /system.
A factory reset is enough (it wipes /data and /cache sd-ext and android_secure): http://teamw.in/whattowipe
No bugs at all, just the known ones..

Holysmoke99 said:
I have flashed several roms but I lose GPS signal on them all. I restore stock rom and GPS works great.
Anyone have same issue?
Click to expand...
Click to collapse
No. GPS works fine on this rom for me.
So does Wifi and 2G/3G. Stable daily driver rom for me, YMMV.

My solution was
1. Make a full backup of your stock Rom or any Rom with GPS working
2. Flash a custom Rom and see if the GPS is working if not make a backup of the Rom you are trying to use as default
3. Restore your old Rom ,the one with the GPS working. Then use some app with GPS like Google maps or GPS test and be sure that the GPS is lock in your actual position.
4. Go back and restore the Rom you want to use definitely and the GPS will lock as fast as before.
Is odd but all the times works for me.
Regards

My experience with the GPS issue
I flashed CM11, GPS didn't work. Wiped everything in recovery and reverted to stock using this link (3b in particular). Opened Google Maps and got a GPS lock on my location. Went back into recovery, wiped and flashed CM11. Opened up Google Maps and GPS still wouldn't work...then I read somewhere about turning Location on and off in Settings so I did that...and it worked! GPS works flawlessly now.

isnt there any other solution that does not involve reflashing stock? has anybody come across an in-rom solution??

Also awaiting a solution

tenjou_89 said:
isnt there any other solution that does not involve reflashing stock? has anybody come across an in-rom solution??
Click to expand...
Click to collapse
Yes.

Hi there, where I can find NON-HLOS.bin?
I try to flash it but it says reported max download sife of xxxx bytes. Cannot load "NOH-HLOSbin"

jochy2525 said:
Hi there, where I can find NON-HLOS.bin?
I try to flash it but it says reported max download sife of xxxx bytes. Cannot load "NOH-HLOSbin"
Click to expand...
Click to collapse
You will find it inside the stock firmware for your device. Make sure you pick the right firmware!

[Q] [ROM][S5 Sprint/Boost/Sport]Un-Adulterated CM12 5.0.2

The only problem I'm having is that I can't make the gps to work, I always go back
to stock and make the gps lock but I can't ... or maybe idk how to ? , I tried a few apps
from the playstore but nothing.
That's the only issue I'm having anyone?
I'm using Philz recovery and I wipe everything.

avenger666 said:
The only problem I'm having is that I can't make the gps to work, I always go back
to stock and make the gps lock but I can't ... or maybe idk how to ? , I tried a few apps
from the playstore but nothing.
That's the only issue I'm having anyone?
I'm using Philz recovery and I wipe everything.
Click to expand...
Click to collapse
I forget where but in either the qa or main thread someone went into detail how they got it to work. I think pretty much you gotta flash to stock then pull up maps and have it route you somewhere, make sure it follows you on you trip and then you know you should have a good GPS lock. Afterwards wipe as usual and flash, GPS should then work. Probably something you have already done, but also make sure you have it set to high accuracy so it uses your GPS for location and not just cell towers.

miked63017 said:
I forget where but in either the qa or main thread someone went into detail how they got it to work. I think pretty much you gotta flash to stock then pull up maps and have it route you somewhere, make sure it follows you on you trip and then you know you should have a good GPS lock. Afterwards wipe as usual and flash, GPS should then work. Probably something you have already done, but also make sure you have it set to high accuracy so it uses your GPS for location and not just cell towers.
Click to expand...
Click to collapse
I'll try to do that but I've done that already , I'm going to try and find the post about it in your thread and follow w.e it is .
Thanks for your help though

GPS Not Working

Recently noticed my GPS was not functioning properly. Upon installing a GPS testing app, it shows that my pixel is 'seeing' the satellites, but not connecting to any of them, rendering gps useless.
I tried flashing the stock modem/radio image, but that did not help. I also tried removing and inserting sim, per some suggestions online.
I am on 7.1.1, rooted, TWRP installed.

maflin18 said:
Recently noticed my GPS was not functioning properly. Upon installing a GPS testing app, it shows that my pixel is 'seeing' the satellites, but not connecting to any of them, rendering gps useless.
I tried flashing the stock modem/radio image, but that did not help. I also tried removing and inserting sim, per some suggestions online.
I am on 7.1.1, rooted, TWRP installed.
Click to expand...
Click to collapse
Bump

Go outside and see if it locks. It can take 5-10 mins for a first time lock. The trick though, is go outside.
Sent from my E6653 using Tapatalk

Electroz said:
Go outside and see if it locks. It can take 5-10 mins for a first time lock. The trick though, is go outside.
Click to expand...
Click to collapse
Tried with no luck

Then there is something wrong with your phone

maflin18 said:
Recently noticed my GPS was not functioning properly. Upon installing a GPS testing app, it shows that my pixel is 'seeing' the satellites, but not connecting to any of them, rendering gps useless.
I tried flashing the stock modem/radio image, but that did not help. I also tried removing and inserting sim, per some suggestions online.
I am on 7.1.1, rooted, TWRP installed.
Click to expand...
Click to collapse
Are your time settings correct? The GPS.Cfg file provides time zone setting to GPS apps in order to ping proper satellites.

quangtran1 said:
Are your time settings correct? The GPS.Cfg file provides time zone setting to GPS apps in order to ping proper satellites.
Click to expand...
Click to collapse
Yes, date/time should be correct.
I'm almost 100% positive my GPS worked fine before ever rooting and updating to 7.1.1. Not sure how exactly that process could've messed with my GPS, but it seems it did.

You can try the GPS Fix - GPS Test app from the Play store. This used to be a staple for us to fix GPS issues in deleting GPS cache and rebuild the GPS.conf file.

quangtran1 said:
You can try the GPS Fix - GPS Test app from the Play store. This used to be a staple for us to fix GPS issues in deleting GPS cache and rebuild the GPS.conf file.
Click to expand...
Click to collapse
Just tried. Appears that my accuracy is still extremely low. Upon checking other gps testing app, phone still is not connecting to any visible satellites. (see attached images)
Also, could it have anything to do with which slot is currently active if radio/modem is slot-specific?

maflin18 said:
Just tried. Appears that my accuracy is still extremely low. Upon checking other gps testing app, phone still is not connecting to any visible satellites. (see attached images)
Also, could it have anything to do with which slot is currently active if radio/modem is slot-specific?
Click to expand...
Click to collapse
Not likely. You can always reflash the radio and see.

quangtran1 said:
Not likely. You can always reflash the radio and see.
Click to expand...
Click to collapse
I reflashed stock radio, didn't help anything.

maflin18 said:
I reflashed stock radio, didn't help anything.
Click to expand...
Click to collapse
If it were my phone, I would probably do a factory reset, then contact RMA if necessary.

quangtran1 said:
If it were my phone, I would probably do a factory reset, then contact RMA if necessary.
Click to expand...
Click to collapse
Is there a way to reset everything without losing data? I would hate to have to re download and sign in to all of my apps yet again.

maflin18 said:
Is there a way to reset everything without losing data? I would hate to have to re download and sign in to all of my apps yet again.
Click to expand...
Click to collapse
You can download the 7.1.1 stock image from the Google developers' site, extract it, edit the flash-all.bat file to remove the '-w' parameter, then run flash-all.bat with the phone in bootloader mode. That puts your device back to stock, unrooted, with data preserved. However, if your GPS issue is caused by a corrupted configuration, guess what, reflash stock isn't going to fix it.

quangtran1 said:
You can download the 7.1.1 stock image from the Google developers' site, extract it, edit the flash-all.bat file to remove the '-w' parameter, then run flash-bat with the phone in bootloader mode. That puts your device back to stock, unrooted, with data preserved. However, if your GPS issue is caused by a corrupted configuration, guess what, reflash stock isn't going to fix it.
Click to expand...
Click to collapse
But a complete factory restore would, yes?

maflin18 said:
But a complete factory restore would, yes?
Click to expand...
Click to collapse
Sure, unless you really have hardware defects.

quangtran1 said:
Sure, unless you really have hardware defects.
Click to expand...
Click to collapse
Alright. I don't believe it is a hardware issue because Gps worked fine when first receiving the phone.

maflin18 said:
Alright. I don't believe it is a hardware issue because Gps worked fine when first receiving the phone.
Click to expand...
Click to collapse
I don't think so either.

quangtran1 said:
I don't think so either.
Click to expand...
Click to collapse
Curious though how running flash-all would fix my issue. If I understand correctly, the only thing affecting GPS should be the radio img, which I already flashed to no avail.
Is it possible that the radio img was flashed to the slot that I'm not currently on?

maflin18 said:
Curious though how running flash-all would fix my issue. If I understand correctly, the only thing affecting GPS should be the radio img, which I already flashed to no avail.
Is it possible that the radio img was flashed to the slot that I'm not currently on?
Click to expand...
Click to collapse
Possible, but radio is radio. It's an image, it doesn't change when you rooted.
I still believe your GPS.conf file is messed up. Flash-all replaces this file in system/etc.