yashsingh1/xdaforums huggingface dataset:
[Mogul, XV6800 ROM Development] segadc:
We should make a thread in the General Discussion so everyone will see it and know its not their phone but Verizon.
[Mogul, XV6800 ROM Development] ek_skotous:
GPS also suddenly stopped workong on my Verizon 6800

I live in the Denver, CO area and I have been having the same problem with my Verizon 6800. GPS had been working fine previously using the Valhalla Legends GPS Server.CAB. I had been on the official Verizon MR2 ROM. A hard reset didn't help so I tried reflashing to the Verizon MR1 ROM. I still have the same problem even with the MR1 ROM. I already re-checked the GPS location settings and the GPS COM port settings but everything is still correct. I too think Verizon has done something to block this.

I hope someone can figure out what is going on.
[Mogul, XV6800 ROM Development] corey113888:
Same problem

I am having the same issue. I never updated to the MR1 update.I did the QPST thing months ago to make GPS fixes much faster.
[Mogul, XV6800 ROM Development] jlh11364:
I use GPS Test from Chart Cross. It usually is a great program that shows all the locks. At this point, it shows that it finds the GPS unit, but no satellites.
[Mogul, XV6800 ROM Development] segadc:
It finally works!:cool:
[Mogul, XV6800 ROM Development] AN4317:
Still not working

Is yours working now? I have tried it all day still no GPS.
[Mogul, XV6800 ROM Development] segadc:
Yeah it might be slowly getting back up for people just keep trying!
[Mogul, XV6800 ROM Development] PGH_xv6900_user:
Same here...

I stumbled on this thread while trying to fix my problem with my XV6900... basically the same thing. Stock GPS ROM and Valhalla Legends plus Baf's GPS Toggle was working great then nothing yesterday. I've flashed my phone several times and tried just about every available work around with ZERO luck.

My next attempt to fix this was to flash a custom Rom. Well anyway I think I'll hold off a little and see how this plays out.

Anyone notice the links on this page are dead? I hope it has nothing to do with the outage. Maybe Verizon in putting the pinch on us GPS free loaders.

http://wiki.xda-developers.com/index.php?pagename=VerizonAGPSFix

Pittsburgh, PA
[Mogul, XV6800 ROM Development] AN4317:
Dead links

I noticed it. I was thinking the same thing. Maybe someone could get some inside info from Verizon.
[Mogul, XV6800 ROM Development] segadc:
Oh no I just checked again and I lost it! I give up for today...

edit: nevermind my battery just hit 10% lol plugged it in and all is well. I bet it will work for everyone by tommorow morning IMO.
[Mogul, XV6800 ROM Development] BHrch:
Same Here

No luck on my xv6800 in Philadelphia...GPS quit out three days ago. Glad to know it wasn't something I did.

Is Skype next?
[Mogul, XV6800 ROM Development] pasomonte:
GPS died a few days ago

I have the latest stock ROM from verizon, valhalla GPSserver. It just quit. I have done a hard reset etc. Glad to know I'm not the only one. I'll quit going nutz and just wait and see what happened. Smacks of big Bro to me.
[Mogul, XV6800 ROM Development] segadc:
I checked this morning and it looks like I lost it once again. What is going on!?!:mad:
[Mogul, XV6800 ROM Development] mryan@comoneinc.com:
No gps near Albany, NY

Lost gps since Sunday, still no gps near albany, ny.

Is there a way to use gps without agps?

Trying to fix the problem, the Valhalla uninstall fails and a Valhalle reinstall fails too. It says unsuccessful. Any way to manually uninstall? It does put the files and directory in though.

Thanks in Advance and keep posting status.
[Mogul, XV6800 ROM Development] rldleblanc:
aGPS down or reconfigured?

The question I have is, did Verizon change something on their network? Monday when I tried to get aGPS working, I went to the Verizon store and checked two phone with vznav and they worked fine and fast. Since I didn't have this working before, I don't know what good GPS data looks like to compare it to what I see now. It seems that HTC GPS Tool has some good debugging info.
[Mogul, XV6800 ROM Development] AN4317:
Still Nothing

Still no GPS here.
[Mogul, XV6800 ROM Development] oldrazr:
GPS not working

I have the same problem, everything was working just perfect :) and Monday it quitted....:mad: I think it has to be Verizon blocking it :mad:
[Mogul, XV6800 ROM Development] mcorator:
But I didn't think Verizon "provided" any part of one's GPS service. Do they own the satellites? Before Valhalla GPS server I was using a bluetooth keychain receiver. I should try it to see if it still works...
[Mogul, XV6800 ROM Development] regal869:
Same here GPS stopped working. Verizon is up to something! NY, NY
[Mogul, XV6800 ROM Development] rldleblanc:
aGPS port blocked

Looks like port 8888 is blocked from my device, I wonder if they put in place some filtering on the server. Anyone with vznav care to see if it works and if a different GPS apps works too with the workaround? This would help point to either a server config or a client config. I'm guessing it is server as most people haven't changed anything.
[Mogul, XV6800 ROM Development] serfboreds:
Old methods still work

Listen guys, this started a while ago and is certainly down for most people now. It is possible that the aGPS server is down as it seemed to be a few weeks ago, or they could have changed it.

The old method still works for me, not as fast as aGPS but it still is functional.

Use Quick GPS to load current locations for sats, you will need data connx.

Then use HTC GPS tool to prep GPS, when you have three to five red bars you should be able to make a lock shortly. I am getting locks in a minute or two, but no ten second cold locks recently :( Cold locks could take three to five minutes with a clear view of sky, or on highway.

I sent a message to GC a while ago but no response. I don't know if Touch Pro is having the same problems, but if they are I would assume that their solution would work on our phone too. We can watch those boards and see if a new IP server address is posted.

I attached those programs.
[Mogul, XV6800 ROM Development] segadc:
Thanks. Wow I am not sure I can get used to those times.:(

So the problem is the ip server address changed and all we have to do (as if its easy) find out what it is?

Also why did I get it for a brief time last night? I thought it was fixed!
[Mogul, XV6800 ROM Development] serfboreds:
I am not saying that is what the problem is. I cant verify that aGPS is really broken cause I can't really test. I just know that it should take 10-20 sec and now it is much longer.

If the IP changed, we need to find what that new one is, but I don't have a clue how we are going to accomplish that. GC had several contacts that helped him get the settings, but getting them again without him may be tough. I was under the impression that the Touch Pro users on VZW had to unlock the aGPS in a very similar way as we do, but there is little chatter on XDA's or PPC Geeks' Titan or Raphael boards about this topic so I don't know. I posted a question on PPC Geeks to Titan users to see.

You may have got a lock yesterday for a few reasons. #1 aGPS isn't broken it is just sporatic. #2 cell phone towers suck since acquiring Alltell and the aGPS doesn't help now like it did before VZW stopped paying Sprint to rent their towers (I don't know that this is true, but a thought). #3 you had a lock recently with the sat locations in your phone and you got a hot lock rather than a cold one (ask if you don't know the difference).

The only thing I really know for a fact is that I don't get immediate locks everytime, but sometimes it is decent (30 secs). I can't rule out aGPS cause I have no way of testing.
[Mogul, XV6800 ROM Development] gregbint:
question on "old method"

serfboreds,

Do the CABs that you posted work with the VZW stock Rom (MR1 or MR2?).

thanks,
[Mogul, XV6800 ROM Development] serfboreds:
Yeah, it works. Does it not for you?

I use a custom rom but it will work fine on any WM phone just as long as you set baud to 4800 on HTC tool. The quickGPS is preloaded originally on an HTC Trinity and the other is preloaded on something else but I can't remember what.
[Mogul, XV6800 ROM Development] segadc:
Cool I downloaded them so I am going to check it now. I guess I have to read up on what settings to put on the HTC tool.
[Mogul, XV6800 ROM Development] serfboreds:
Just set to COMM 4 and baud to 4800, then hit open and Nav Init buttons in that order.

Clear memory and Cold start are good settings if you are having problems getting a lock. Once you see emphemeris data streaming in the box below it should look like screenshot 1.

Once you have a lock, it should look different with much more info (I will post screenshots later).

You can watch the sat radar too by clicking that tab.
[Mogul, XV6800 ROM Development] segadc:
Ok cool thanks! Its working now lets see how long it will take to get a hit.
[Mogul, XV6800 ROM Development] gregbint:
I just got the GPS stuff on my phone today so I'm kinda new at this but been reading a lot over the last couple of days...

Did the "QuickGPS" download.

OK so yes I got the HTC GPS tool and it will display a lot of stuff going on (across the above screen you posted) using baud of 57600 or 4800 but no satellites show up on the satellite tab (fix not available) when I hold it to the window of my building.

Sorry to be such a "newbe" but you said "clear memory" do you mean turn it off and back on or where might this setting be?

I'm headed outside next to try it out. Thank you for the help

VZW 6800 /MR2

rom 3.57.605.2 (10/3/08)

radio 3.37.78
[Mogul, XV6800 ROM Development] segadc:
Not getting anything. I will have to try it outside when I get a chance.

Clear memory is one of the settings on the drop down menu of the htc gps tool.
[Mogul, XV6800 ROM Development] serfboreds:
Well, first if you are MR1 or MR2 you need Valhalla cab to have unlocked GPS anyways so first lets make sure you are ok there. Second, it has to be 4800 baud and being outside or driving will help. Since aGPS seems to not be working, it may take a while.

Clear memory is a setting under the drop-down menu where it says "hot start" but it may not help given the situation. It does not mean a restart or anything like that. I believe it clears previous emphemeris information (i.e. where the satellites are in space) from previous locks, thereby enabling a hot start for the GPS chip.

I have also found that a soft reset can help if GPS is taking a long time to load.
[Mogul, XV6800 ROM Development] gregbint:
VZW 6800 w/ MR2

I installed the Valhalla cab (the install process ran). Did not find an program to launch afterward.

Lots of Data going accross the HTC GPS tool screen. I've had it going for over 5 minutes with no relative info on the Information or Satellite tabs. It almost looks as though once the tabs have been looked at they don't get any further updates???

Could this just be something like what everyone else is having trouble with?
[Mogul, XV6800 ROM Development] serfboreds:
You need to read through this thread to make sure you are installing Valhalla correctly as instructed, I am only really speaking to those who have lost GPS functionality that they once had working rather than troubleshoot, sorry. I would try to drive around and see if you ever get any red bars on the sat radar.
[Mogul, XV6800 ROM Development] JustinAppi:
I think Verizon shut the aGPS off. Maybe they're getting ready to unlock the GPS on all their windows mobile phones and this is in preparation for it.

I used to use the GPS on my VX6800 all of the time. Worked flawlessly. As of yesterday, it stopped working for me. And it's still now working for me now. It switches between red and yellow and never green. I'm sure they're up to something. It's a good thing I also have a separate GPS device that I can use as backup till they get this straightened out.
[Mogul, XV6800 ROM Development] serfboreds:
I don't know, Verizon doesn't give away anything for free, they probably hated giving away the MR1 and MR2 without charge. I would be surprised if they are planning to give away aGPS because they invested in locking our phones to VZnav.
[Mogul, XV6800 ROM Development] rldleblanc:
Try this

Ok, I was able to get things working with mode 0. I looked through the device and found this address and port, maybe someone can try it out, doesn't seem to work faster for me, but it now works in mode 2 for me.

\\KHLM\Software\Valhalla Legends\GPSServer\PDEAddress = C3CF657E (hex)

\\HKLM\Software\Valhalla Legends\GPSServer\PDEPort = 7788
[Mogul, XV6800 ROM Development] wd_stewart:
GPS Working on XV6800

I have the MR1 and Valhalla update on my xv6800. I ran the DCD QuickGPS (the official QuickGPS didn't seem to work?), then started Google Maps with GPS, then ran the HTC GPS Tool as described in Post #541. In less than a minute, I pulled in 6 satelllites and all was good. I think the key was actually having an application running and trying to pull in a signal. Either that, or Verizon or whatever was wrong, just started working. (9:19 PM, Central Time)

On a side note, check out www.geoterrestrial.com their application is free and is based on Google Maps. The thing I like is the ability to show your contacts right on the map. Just my opinion, of course.

EDIT: The GPS was not working at 6:00 am this morning (2009-03-19). I repeated the above procedure (HTC GPS Tool in Clear Memory Mode) and I was able to pull in satellites again.
[Mogul, XV6800 ROM Development] zanymonster:
Workie!

Mine stopped working a couple says ago. Fortunately, I found this thread before I wasted my entire day trying to figure it out, but sadly I had already reflashed my phone. Now....

IT MAGICALLY STARTED WORKING AGAIN!!!!

Pueblo, CO around 8:15PM (MST)

Happy, happy camper!!! Hopefully it will stay up for us now!!! I had gotten rig of my old gps and relied on my phone with gpsgate, gpsscout, google maps, and richesseGPS exclusively for totally wireless and paperless geocaching. I will be really sad if I loose that after making the investment in the software!
[Mogul, XV6800 ROM Development] RawlingsSc:
A question for you serfboreds. I'm new to this forum and am having the same problems as everybody else. I wanted to make sure the programs you attached to your message will work with my 6900. I would think they would, but you never know. Sorry if I'm asking a dumb question.

Thanks in advance.
[Mogul, XV6800 ROM Development] AN4317:
I thinks so...

I am sure I have seen a post about the 6900 but not 100% sure. Also, my GPS is still not working.:mad:

Here is an interesting artical:

Verizon Wireless Promises Unlocked GPS Receivers Next Year!
[Mogul, XV6800 ROM Development] F L I K:
Kinda new here and kinda stay in the background. You guys are amazing with these devices. I use my 6800 for everything! GPS was the best thing since bread to me! Just wanted to show my appreciation for the research you guys are capable of. IF Verizon finally does unlock the sets, hopefully the unlock for the Touch will work on the xv6800.
[Mogul, XV6800 ROM Development] segadc:
Can you post the exact Quick GPS used. Thanks!
[Mogul, XV6800 ROM Development] zanymonster:
and the no workie again this morning. I changed the address, port and mode as posted by rldleblanc and it works again. it does appear to be far less accurate now in mode 0, but it should be good enough if all you want this for is turn by turn or fixing on a map. I don't think its going to cut it for geocaching anymore though. :-(

rldleblanc - how did you figure that out? did you run packet capture with vznavigator running?
[Mogul, XV6800 ROM Development] segadc:
So we just have to make those two registry edits?
[Mogul, XV6800 ROM Development] jjlatty:
Still no good

I made the registry edits suggested and I still cannot get a fix. I'm located in Ft. Lauderdale, Florida
[Mogul, XV6800 ROM Development] segadc:
Wow well maybe I should'nt try those regedits.
[Mogul, XV6800 ROM Development] serfboreds:
Try this,

Here is what I did and things work with GPS (but not aGPS). These two proggys should be fine on most WM devices.

1. Verify reg settings are correct in SUPL AGPS (I ran GC aGPS cause I have custom rom but don't want to speak for you MR1/MR2 guys...use only if you understand the regedits it is writing to your phone. It may be wiser for you to do it manually if you know how - search XDA for what these keys do).

2. Ran DCD QuickGPS (find it in my post #535 here).

3. I called *22899 and then let it reboot.

3. Let everything get up and run HTC GPS tool as described in post #541 here.

4. If no lock after a while, reboot and repeat #3.

I am getting between 30 sec and 2 minute locks with 4-8 sats, but usually I need to be outside or driving. Inside is hit or miss.
[Mogul, XV6800 ROM Development] segadc:
So what exactly does *22899 do?
[Mogul, XV6800 ROM Development] serfboreds:
It is the same as *228 option 1, which updates both the software and roaming (PRL) capabilities, it just bypasses the prompts. It ensures that you have the most recent data and call software. I don't know if *228 option 2 would offer the same benefit, but this was something that was necessary when aGPS was cracked by GC.

I do it for good measure and a clean soft reset.

FYI - from cellphoneforums.net here

Here's some verizon specific codes that may help you if you if you need to check something

#832 - test call

#PMT (768) - make a payment

#BAL (225) - check current balance and last payment

#MIN (646) - check minute usage

#DATA (3282) - check txt and pic message usage

*611 - customer service

*511 - gives weather and traffic in some areas

*228 - update your Perfered Roamers List or update the software on your Phone (CDMA phones only)

*228 80 - force update, ignore fails

*228 99 - force seconday tower update

*228 00 - original tower update
[Mogul, XV6800 ROM Development] segadc:
Wow nice thanks.
[Mogul, XV6800 ROM Development] jlh11364:
Reg Edits

I tried the registry edits. I think you guys might be on to something. Not quite but we are getting there. No locks, but at least with the HTC GPS tool, I was able to find 11 sats after approx. 30 seconds outside. How about the IP address? is that a valid change?
[Mogul, XV6800 ROM Development] zanymonster:
Works, multiple phones, stock MR1 6900's with valhalla.cab

Here's is the tested and proven solution for us.

1) if you haven't already, you need to flash your phone to MR1 or MR2 official release. You can find the MR1 for 6900 herehttp://www.pcdphones.com/phone_downloads.aspx?bid=95&cid=1&mid=302&carrier=Verizon%20Wireless

2) install Valhalla .cab file for gpsserver (attached)

3) edit the registry and change the following 3 entries:

* \KHLM\Software\Valhalla Legends\GPSServer\PDEAddress = C3CF657E (REG_DWORD Hex)

* \HKLM\Software\Valhalla Legends\GPSServer\PDEPort = 7788 (REG_DWORD Decimal)

* \HKLM\Software\Valhalla Legends\GPSServer\Mode = 0

Reboot. You must do a soft reset before this will work. Get ready for slower locks and less accuracy, but it does work, and it is good enough for turn by turn in Live Search.

I understand most of you have a 6800, and that that is in fact what this thread is supposedly all about, but the 6900 has the same GPSOne chipset and works with the same gpsserver.exe when using the stock MR1 or MR2 roms.

I have done 3 phones today, and it fixed them all! (Noting of course that they no longer work with aGPS, which is a serious drag)

Please also note that I DID NOT install any of the other "fixes" or utilities posted here, just the valhalla .cab file and that's it.

There are some tweaks that may make for faster fixes, but I am still researching those.

I am still hoping that rldleblanc will tell us how he discovered the address and port that worked. I suspect he subscribed to VZNav and did some packet analysis. Either way, thanks man!
[Mogul, XV6800 ROM Development] wd_stewart:
SEGADC:

Check out the post #535 for the files I used. I've been having issues all day, however. Good luck.
[Mogul, XV6800 ROM Development] AN4317:
IT WORKS!

IT WORKS! IT WORKS!:D

The only thing I did differently is instead of a soft reset I did *22899

Good luck to everyone with this problem.
[Mogul, XV6800 ROM Development] zanymonster:
Workie?

AN4317, is that a 6800?
[Mogul, XV6800 ROM Development] segadc:
Cool I will try this. Now if Verizon gets its aGPS back up for us, will we know it or have to switch back the settings?

edit: I went back to the registry editor to see if the changes stuf. PDEAddress keeps staying at decimal.
[Mogul, XV6800 ROM Development] cryogenesys:
use 3285149054 for decimal entry in

* \KHLM\Software\Valhalla Legends\GPSServer\PDEAddress = C3CF657E (REG_DWORD Hex)

The fix worked for me, been trying all week.

xv6800 /MR2
[Mogul, XV6800 ROM Development] segadc:
Yeah that is what it says. I am going to go outside and try it since inside didn't work.
[Mogul, XV6800 ROM Development] zanymonster:
You enter it in hex. It's OK after that. Dwords are stored in hex, but can be converted and entered any of the three ways. The system always interprets it in the format it needs. No worries!

We will never know if it starts working again normally. I guess just follow forums and see if the need for the work around diminishes. I really need the aGPS in order to achieve the accuracy needed to be useful in geocaching. Keeping my fingers crossed that there is a better solution eventually.

Also, my theory is that the IP and port could be changed to anything now because we are actually not using the servers anymore when using this workaround. Modes 1,2,and 4 use servers to calculate correction values based on tower signal strength values. We are now stuck with mode 0, which is totally unassisted GPS. I tried making a TCP connection to that IP (195.207.101.126 in dotted octet) on port 7788 and nothing lives there. So I am not sure where rldleblanc got that from, but I suspect that any other arbritary value than the default actual aGPS servers would work. I hope rldleblanc will eventually post a followup.

There has to be a verizon network tech out there that could leak the real facts. PLEASE, PLEASE, PLEASE!!!???
[Mogul, XV6800 ROM Development] jeffreypjacobs:
Three Bars-well, at a half

...using the fix, best I could get was 15,19 and 21- but never past half, and still "fix not available". Greenville, SC
[Mogul, XV6800 ROM Development] zanymonster:
again, the fix I posted is only valid with the gpserver.exe from valhalla and the stock rom. Only works when used with the Windows Intermediate GPS api. Commonly works with windows live and google maps. (select managed by windows in google maps) Does not work as a NMEA GPS on a serial port, which is what is needed for GPS Viewer to work. If you have a cooked rom, I have no idea and you should completely ignore everything I have posted. Sorry, and good luck!
[Mogul, XV6800 ROM Development] segadc:
Went outside (cloudy day) and got nothing from Live Search or Google Mobile. I will check it out more later today.
[Mogul, XV6800 ROM Development] AN4317:
Answer to question

Yes.:cool:
[Mogul, XV6800 ROM Development] jlh11364:
Add one more reg edit

I had used all of the edits summarized by Zanymonster and brought up by others earlier. Not real good results. 4 sats max and real slow.

Add one more edit: "HKLM\Software\HTC\SUPL AGPS\GPSMode = 1" This came from fatcatsmommy on PPCGeeks. Now I pick up 7+ sats indoors and real quick. Almost as good as with the agps working.

Let me know if it works.
[Mogul, XV6800 ROM Development] rldleblanc:
I thought that maybe they changed the aGPS server address since VZnav still works. Poking through the phone registry I found them under HKLM\software\htc\supl agps\ServerIP and HKLM\software\htc\supl agps\ServerPort. It was a shot in the dark, since I never had it working before, I wasn't sure if I was still doing something wrong. I wasn't sure if an updated VZnav changed those values or not.

What others have said about mode 0 working is correct, it does not matter what you put in the address if you are using mode 0. We just need to keep digging around, a phone with VZnav, might have it a little more visible, but it's just a guess.