VZW GPS Discussion Thread - Mogul, XV6800 ROM Development

I finally got it.
VZW AGPS INSTANT LOCKS.
Tested to work on any custom GPS rom/radio pair. Now also working with the MR1 update thanks to Skywing.
Persists through all flashes of the OS Rom and Radio. Works with both PRI 1.35_002 and 2.03_002, though it does NOT persist through a PRI change. It will have to be re-applied after, and Location On will have to be reset.
Complete tutorial can now be found in the wiki here:
http://wiki.xda-developers.com/index.php?pagename=VerizonAGPSFix

Related

dcd's 3.2.3 No GPS after flashing

I have flashed from DCD 3X to 3.2.3 rom and Titan Radio ROM 3.42.30, this is the first time that I have no GPS at all. I have done the com4 manage GPS auto setting and the location on setting. I use visual GPS to prime and the chip does not cut on at all. I flashed the radio first and the GPS was working with my old rom, then after the 3.2.3 it stoped.
What am I missing ?
craig540 said:
I have flashed from DCD 3X to 3.2.3 rom and Titan Radio ROM 3.42.30, this is the first time that I have no GPS at all. I have done the com4 manage GPS auto setting and the location on setting. I use visual GPS to prime and the chip does not cut on at all. I flashed the radio first and the GPS was working with my old rom, then after the 3.2.3 it stoped.
What am I missing ?
Click to expand...
Click to collapse
It happen same thing to me, I soft reset the phone a couple of times and worked. Do the same and see if it works
Did you run QuickGPS? When you run HTC GPS tool does ephemeris data start rolling?
Read the GPS wiki again in main forum sticky and follow to the letter.
Read the wiki over again checked everything and it started working. I must have missed something.

dcd 3.2.6 and GPS

Hello all!
I'm running dcd 3.2.6 with 3.42.40 radio and a Titan on Verizon. The GPS was working with Google Maps with the Verizon 6.1 update, but the phone was so slow to use (and no BT ICS), so I went to dcd. Since then, I get BT ICS, and the phone is much faster, but the GPS cannot lock on any sats. Any ideas?
I'd check to make sure all your aGPS settings are correct using QPST.
Already did that, but I checked them again to confirm.
What next? Is there a CAB I need to install? Should it just work out of the box?
it should work fine. Makesure it's set for com4 in google.
Actually I got my gf a touch and it was working fine til earlier this week now its back to the slow non aGPS where we have to wait 15 mins to get a lock. and i just got a new titan and cannot get gps working on the nuerompre3 rom. Maybe they blocked it?
did you make sure the location setting was set to on and not to 911 only?
It is on COM4, and it is set for Location Only. It was working with the Verizon MR1 release...
Did you reflash back to a pre 6.1 Verizon rom first? You have to do that or MR1 breaks the GPS. Once you flash back to an older rom, then the normal update flashes for custom roms works fine.
BTC
BillThyCat said:
Did you reflash back to a pre 6.1 Verizon rom first? You have to do that or MR1 breaks the GPS. Once you flash back to an older rom, then the normal update flashes for custom roms works fine.
BTC
Click to expand...
Click to collapse
That was it! I re-locked and flashed with a stock Verizon rom, and then installed SPL 2.47, dcd 3.2.6, and radio 3.42.40 and everything works perfectly! GPS, BT tethering / internet sharing, and it's quite responsive. Thanks for the tip!
No verizon ROM, but still the same problem
Well, I've never used a Verizon ROM (I'm in Mexico city, my carrier's IUSACELL), but I have the same problem. I got GPS working with DCD 3.2.5 and after upgrading to Radio 3.42.30 and DCD 3.2.6 (same day, one after the other), I've been unable to lock onto a satellite in spite of leaving the unit in the open for over half an hour and prepping the unit with toggleGPS.
I've tried flashing back the radio and ROM to the working versions and even cooked several ROMS using PPCKitchen, to no avail. The system can open the port, does read up to 7 satellites, but cannot lock onto them.
I tried setting the GPS up with the QPST tool and Verizon settings, and got nowhere.
I'll try and relock and unlock tip that eclipse used, but maybe I'm missing something here...
any help will be mucho appreciated.
Thanks
Hey there. I found the aGPS settings for IUSACELL here (site is in spanish and the info is on post 27 of this thread). I'll reproduce them here for quick reference:
PDE IP: 207.83.200.238
PDE Port: 8888
PDE Transport: IP
Position Calculation: PDE
I've tested them using dcd radio 3.42.50 and they work like a charm
Anyone know if/how we can get them listed in the tutorial and/or included in the Iusacell carrier cab?
I know I'm a senior member..and as a senior member I should know better than to ask something nooby like this: so please excuse my noobness and help me out!
I'm considering on flashing to dcd's 3.2.6 ROM but I had a couple of questions in mind first:
1) I'm on Sprint running on Evdo Rev. A speeds, I was wondering if I'd still have these speeds after flashing to dcd
2) I read about several GPS problems after flashing to dcd..but most of them came from Verizon devices..will this happen to me if I did the same?
3) Does it have MS Office Mobile in it as well?
Thanks a lot to whoever answers me! I really appreciate it!!
Answers for you:
a) yes, EVDO-A is supported
b) The problem stems from the official Verizon update. There is now an entire section in the Titan wiki related to fixing those problems.
c) Yes, it does have Office 6.1 in it.
Hope that helps.
drnoir said:
Answers for you:
a) yes, EVDO-A is supported
b) The problem stems from the official Verizon update. There is now an entire section in the Titan wiki related to fixing those problems.
c) Yes, it does have Office 6.1 in it.
Hope that helps.
Click to expand...
Click to collapse
Helps a lot drnoir! Appreciate it, will flash to dcd tonight

Can't Get GPS to work

So, I'm using a Verizon XV6800. I have DCD 3.3.4 and Radio 3.42.50 on it. No GPS satellites every triger when using something like "GPS Viewer."
So i saw http://wiki.xda-developers.com/index.php?pagename=VerizonAGPSFix
now, I was willing to try it, but none of the links work. So, what am I to do?
Did you try installing the stock rom (pre MR1) first? If your phone came with MR1 and then you flashed to DCD it will not work. You must flash back to an older Verizon stock rom, and then update to DCD.
Also check your location settings, and verify that your GPS settings are set to Com4 and hardware Com0 or None, some work with one or the other.
BTC

GPS Help Puuleeaaassee!!!

I have spent hours trying to fix this GPS thing. I followed this tutorial (http://wiki.xda-developers.com/index.php?pagename=VerizonAGPSFix) to the letter. Everything on the phone works fine except this gps. What am I doing wrong???
-I upgraded to the VZW MR1
-Then switched to DCD3.2.5 (Radio 3.42.4)
-Then followed that above link
Nothing seems to work.
If you aren't going to use MR1, then don't upgrade to it. Downgrade back to official Verizon WinMo 6.0 stock rom, then unlock, flash to a newer radio and then flash DCD 3.2.6 and your GPS will work.
The Valhala cab thing only works if you are running MR1, if not, then you don't want to install MR1 or it will disable your GPS.
BTC
I have read so many of these xda and ppcgeek threads now my brain is spagetti. I have also come across MANY conflicting threads discussing the whole GPS issue - on a wide range of ROMS, radios etc. Is there a tutorial on how to do this?
The only reason I switched to DCD's ROM was I was hoping to get ICS working. Alls I want is a WM 6.1 ROM that will give me unrestricted use of my GPS, and ICS to work properly.
Go to Settings > System > Device Information...
What PRI (Not PRL) version are you running?
chs200123 said:
The only reason I switched to DCD's ROM was I was hoping to get ICS working. Alls I want is a WM 6.1 ROM that will give me unrestricted use of my GPS, and ICS to work properly.
Click to expand...
Click to collapse
Try my rom gps works and ICS (usb) the only conflict is mms but should be working soon
scrawnyb said:
Go to Settings > System > Device Information...
What PRI (Not PRL) version are you running?
Click to expand...
Click to collapse
Rom Version: 3.2.6
Radio Version: 1.42.40
Hardware Version: 0003
PRL Version: 51210
PRI Version: 1.35_002
ERI Version: 4
BillThyCat said:
If you aren't going to use MR1, then don't upgrade to it. Downgrade back to official Verizon WinMo 6.0 stock rom, then unlock, flash to a newer radio and then flash DCD 3.2.6 and your GPS will work.
The Valhala cab thing only works if you are running MR1, if not, then you don't want to install MR1 or it will disable your GPS.
BTC
Click to expand...
Click to collapse
Dude you are a genius!!!! Your quick instructions have finally ended a long hunt in searching for this solution. After I did what you told me, I have both blazing fast GPS connectivity, and fully working ICS. I want to mention a few things in case anyone else runs into the issue I did.
First, after I successfully downgraded, and then reinstalled DCD’s 3.2.6 (radio 3.42.50 & PRI 1.35_002), I did NOT follow the instructions to enable AGPS. I dont know if this is being overlooked somehow on all these forums, but after I installed my carrier cab, with DCD’s 3.2.6 ROM, everything worked as is. There was no need to install anything else. Also keep in mind, that I did exactly as BillThyCat instructed, and that was flashing directly from the stock WinMo 6.0 (no MR1 update) to DCD’s 3.2.6.
If I read your last response correctly, it sounds like you did not do the aGPS fix afterwards. It's not a requirement, but it will get you 15-20 second GPS locks almost every time you try. It's well worth it.
Glad you got everything else working tho. Your issue is a pretty common problem. With most carriers you want to load their latest stock rom then upgrade from, however Verizon being the bastages that they are, lock the GPS down. There have been a few work arounds found, named the Valhala cab, however if you are going to run a custom rom anyways, why even mess with all that. Just use a custom rom and work.
BTC
Yes, I did not do the AGPS fix posted on that wiki site. Im not sure I understand why doing that AGPS fix would give me 15-20 second GPS locks, when I have like 8-10 second GPS locks now. Perhaps the magic is just in the latest radio. Either way, I'm happy with the way it all worked out.
When I first programmed my phone I would get syncs instantly one day and 10 minutes or more the next. If you are consistantly getting them in 8-10 seconds don't mes with anything, just keep in mind if that nice feature goes away that aGPS is available in the future.
BTC

XV6800 (Radio 3.42.50) - No GPS on custom ROM.

I've got a refurbished Verizon XV6800 that had the latest Verizon ROM installed (radio 3.37).
I unlocked with No2chem SPL 2.47 and flashed a GPS PPCKitchen ROM.
The phone is flashed for cricket.
I can not get GPS to work. I upgraded the radio to 3.42.50.
GPS stil does not work. I added GPS toggle and quick GPS but they did not help either.
I've read about the Verizon MR1 update and how GPS would not work after it is installed.
Am I able to put the Verizon 6.0 ROM on it?
I thought that would downgrade to a non-GPS radio, and that could brick the phone?
I've searched this awhile now, and can't find a specific set of instructions for a GPS enabled Verizon to get GPS working with a custom ROM.
If I can flash a pre-MR1 Verizon ROM, where would I find it?
Thanks for any help.
Check here as Mr-Free stated.
http://forum.xda-developers.com/showthread.php?t=444342&page=80
also see post 803 in that thread...
That was taken from the last couple of pages of the Official Verizon Wireless GPS/aGPS Discussion thread.
edit: fixed link
http://forum.xda-developers.com/showthread.php?t=376873 his link is not working for me so i gave you this.
you can go down to stock
GeLopez said:
http://forum.xda-developers.com/showthread.php?t=376873 his link is not working for me so i gave you this.
you can go down to stock
Click to expand...
Click to collapse
I've read this thread, but it was written before GPS roms, and I don't think it addresses the issue of downgrading radios from 3xx (3.42.50, in my case).
skank_boy said:
I've read this thread, but it was written before GPS roms, and I don't think it addresses the issue of downgrading radios from 3xx (3.42.50, in my case).
Click to expand...
Click to collapse
The stock rom contains the downgraded radio as well.
Thanks for your help, but I need to know.
I've heard going back to a non-GPS radio is really dangerous (this is a non-GPS radio, right?)
Just don't want to brick it.
It's very hard to brick this phone. I am one of the few that have, but, wasn't due to software issues, it was hardware. I've gone down to stock plenty of times and it's not that hard. In order for you to use a custom ROM WITH gps and yer trying to flash from a stock 6.1 rom, you HAVE to flash back to a 6.0 rom and then upgrade from that or gps will not work. Check out the guides mentioned above and the guide in the wiki.
Thanks for the advise, folks.
I will...(gulp)...give it a try.
If you hear screaming from the direction of Dayton, Ohio you'll know why.
lol
Thanks again.
i think i heard screaming already do you need us to call an ambulance?
I downgraded, and then upgraded successfully.
Now I just need to see if GPS is working.
>>EDIT<<<
GPS is working! Thanks so much for the help guys! I've done about 12 Moguls, but this was the first VZW one, so it was a new problem for me.
..but there is something weird. My data connection keeps starting up by itself.
I done everything as I always do, but I've never had this quirk before.
Could it be a radio problem?
Thanks.
skank_boy said:
I downgraded, and then upgraded successfully.
Now I just need to see if GPS is working.
>>EDIT<<<
GPS is working! Thanks so much for the help guys! I've done about 12 Moguls, but this was the first VZW one, so it was a new problem for me.
..but there is something weird. My data connection keeps starting up by itself.
I done everything as I always do, but I've never had this quirk before.
Could it be a radio problem?
Thanks.
Click to expand...
Click to collapse
With every ROM I've used including all the official Telus ROMs I'm pretty sure the data connection always connects by itself...
The only application I had that wouldn't start a data connection on it's own was SBSH Weather (it had a specific option to automatically establish a data connection).
I've been fighting a similar problem,trying to learn ppc kitchen.Every rom I've made can't get the data connection to stop,keeps cycling back on

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