GPS Fix Issue - Mogul, XV6800 ROM Development

Ok, to start off I have the following:
Rom: DCD 3.2.6
Radio: 3.42.60
I also did the aGPS fix. I upgraded to a newer dcd rom and a newer radio after hearing that these work better with the GPS. Here is my issue. I have always had issues with the GPS taking forever to get a fix and the aGPS fix sounded great. I did the fix with an older dcd rom and radio and the first time i tired to use gps after doing the fix I saw the phone make a connection and then it got a fix right away (within 30 sec) which it never has done. Any time I tried to use gps after this it would take a while like it always did and I didn't see it make a data connetion like the first time. I then upgraded to the dcd rom and radio that I have now. I applied the aGPS fix also. The first time I tried GPS I saw it make a data connection and then it got a fix right away. After that it never made a data connection again and it is not as fast as it was the first time anymore... Is there some setting that will make it retrieve the data from the network to get a quick fix everytime? Why did it only do this the first time?

Related

GPS working without custom roms and mods

Hi I'm new and i have found that on this stock firmware (Sprint), i can fully use the GPS without having data (which i don't). I used BAF GPS toggle for the today screen. Here is what i did:
installed TomTom GPS software
installed BAF GPS toggle
when you turn the GPS on, it will automatically try and start the data
connection, make sure it doesn't connect if you do not have data. even if you
do, its not going to do anything for you.
link: http://forum.ppcgeeks.com/showthread.php?t=21278
started TomTom with default GPS settings
and i waited a bit to get a lock and KABOOM it worked.
I did this on my Mogul with the current firmware from sprint as i said at the top. This has worked for me every time i have tried.
Did your Mogul come with 3.35 ROM and 3.35 radio?? If it did, then yes you have the drivers in the OS to enable GPS....
yes i have the 3.35 radio and rom. but without the BAF i couldnt find how to enable the gps without starting vision services. this also works on the current dcd build.

verizon 6800 gps woes

copied and pasted from the gps faq:
hey guys,
im a long time reader and this is me first post here on the forums.
im having an issue with the gps for the xv6800 on verizon. ive read through lots and lots of posts regarding verizon and their gps service, agps and the like. my problem is that i dont ever get a lock, and never see any satalites in the htc gps tool. it just sits there.
ive got
VZW XV6800
Rom: DCD 3.2.0
Radio: 3.42.30
i installed the radio using the sprint official rom, and then put dcd's over that. im using olipro 2.40 and after i put in dcd's rom, i ran the verizon carrier cab. also the arc mms thing but im sure that has nothing to do with anything other than mms.
my gps settings are
com4
4800 baud
and manage automatically.
location mode is set to on.
i dont have tomtom or another commercial program to test, so ive been trying google maps and windows live. google maps tells me my handset doesnt seem to be compatible with my location, and windows live just tells me gps signal lost.
ive let it sit for roughly an hour and some change, trying for a lock, although that is unpractical for everyday use, i just wanted it to lock.
i read on here that other verizon customers gets theirs to lock in minutes, and that would be great for me if i could get that. so im asking, is it just my handset? or have i not done a crucial step in the flashing, programming?
didnt call verizon when i switched phones to reactivate data or whatever, i didnt know what i was supposed to ask them to do, so i just switched phones thru vzw.com and it makes calls and uses the ## codes perfectly. ive dont the *228 ect .
am i just sol? i really would love to have gps back, my previous phone broke, and i used vznav and that was great.
thanks in advance.
try this, and see if it makes a difference:
http://wiki.xda-developers.com/index.php?pagename=TitanGpsFix
thank you for the reply but i forgot to mention that i have already applied the gps fix fromt the tutorial. i read somwhere that is persists through flashes, so i have not tried to reapply it after upgrading to the latest dcd.
if it truly does not then i will try to reapply that again when i get off of work
gmaps always says not compatible with my location (it is a feature some phones support that doesn't use gps) - don't use my location, check 'use gps'.... once the gps has a lock my location will send you to that location though....

Problems with GPS since upgrade

I had the GPS working and then upgraded to the latest DCD.
I now have:
DCD 3.2.5
Radio 3.42.50
I have COM port set to 4, hardware port set to none and baud rate 4800 and let windows manage the gps. I also set it from 911 to location in phone settings.
None of my apps (GoogleMaps, TomTom) recognize it. And GPS Viewer bombs when I try to open COM4.
Any ideas? I really need my gps back.
I remember some people saying to briefly flip Location back and forth from 911 to Location On a few times, and having it work. Try that, and maybe grab the HTC GPS Tool to try and diagnose this.
Also, if you haven't already, you may want to do the GPS fix that involves messing with QPST.
Hmm, I've got 3.2.5 with the .50 radio, and using TomTom 7 fine...so don't downgrade, keep working at it, since I have that same setup and working fine.
You might try the radio rom again. I also hear that *22899 might help. There are some other GPS software out there that will show you the NMEA messages, see if you are getting any and if not then your GPS is not turning on or there isn't a GPS chip in that phone. Just kidding.

Official Bell Mobility GPS/aGPS Discussion Thread

Please post all discussion/issues/comments regarding Bell Mobility GPS/aGPS in this thread.
aGPS locking up
I'm running Bell, dcd 3.2.5, radio 3.42.50 with aGPS working just fine, for a while. After a couple of times of turning the screen off (Power button), or standby, or whatever you call that mode...TomTom 7.450 (and GPStoday and Intelligolf all latest versions) stop locking via aGPS. Normally I get locks in 5-10 seconds with all these programs but afterwards I get nothing. TomTom shows satellites but won't lock on to any of them.
Please ask me questions if I missed anything. Any ideas?
I used to have the same issue. I upgraded to dcd 3.2.6. Still with radio 3.42.50. I also did the aGPS setting enable per another thread. Since then, I no longer have that problem. I get quick satellite fixes for days on end without the need to soft reset.
Power mangement
Hi all,
easy fix, I had the same issue. It is the power management. Once you put your phone to stand by the GPS will not come back up unless you use Quick GPS (don't know why but it bring is out of standby) or you can do the following regedit.
In the regestry I found these settings for power management.
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Power\Interfaces]
"{EB91C7C9-8BF6-4a2d-9AB8-69724EED97D1}"="Power-manageable display"
"{98C5250D-C29A-4985-AE5F-AFE5367E5006}"="Power-manageable NDIS miniports"
"{8DD679CE-8AB4-43c8-A14A-EA4963FAA715}"="Power-manageable block devices"
"{A32942B7-920C-486b-B0E6-92A702A99B35}"="Generic power-manageable devices"
Each one of the {} strings are an IClass for other device including the GPS. The one found in the GPS was this "{A32942B7-920C-486b-B0E6-92A702A99B35}. When I deleted the IClass string out of the following keys, you are now able to put your phone to standby and the GPS will keep running.
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\GPSID]
"IClass"="{A32942B7-920C-486b-B0E6-92A702A99B35}"
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\SerialGPS]
"IClass"="{A32942B7-920C-486b-B0E6-92A702A99B35}"
Thanks for the info guys! I'll try deleting the registry items first and see what happens.
AGPS and Data usage
Hi, I am hoping someone can answer this for me, does AGPS use data, is it costing me money to use it? I have read many posts and still I am confused. I am using dcd rom 3.2.6, radio 3.42.50 PRI 2.02_007. Thanks
I noticed a significant decrease in lock times after going to PRI 2.02_007, FWIW.
incenseguru said:
Hi, I am hoping someone can answer this for me, does AGPS use data, is it costing me money to use it?
Click to expand...
Click to collapse
Yes, by default the assisted mode will request to transfer small amounts of data (download satellite ephemeris data) over the network everytime the GPS is initiated and when satellite coverage is obscurred (location determination from a IP defined assistance server).
I have confirmed this with my online data summary with Telus.
Thanks for the for the help.
CarmeloR said:
When I deleted the IClass string out of the following keys, you are now able to put your phone to standby and the GPS will keep running.
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\GPSID]
"IClass"="{A32942B7-920C-486b-B0E6-92A702A99B35}"
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\SerialGPS]
"IClass"="{A32942B7-920C-486b-B0E6-92A702A99B35}"
Click to expand...
Click to collapse
Thank you! This works perfectly.
ande8150 said:
I noticed a significant decrease in lock times after going to PRI 2.02_007, FWIW.
Click to expand...
Click to collapse
What kind of lock times are you seeing? I'm seeing 10-15 seconds. I'm fine with that.
88fingerslukee said:
What kind of lock times are you seeing? I'm seeing 10-15 seconds. I'm fine with that.
Click to expand...
Click to collapse
About 10 seconds. It was way longer before. Sometimes a few mintues.
I'm running DCD 3.2.6 with radio 3.42.50 and PRI 1.34_007. I have ridiculous lock times most of the time. I don't use QuickGPS or anything else other than Google Maps. I've waited minutes sometimes to get a lock. I live in Milton, ON, and use GPS typcially anywhere in that area and the GTA (Toronto) area. I don't use GPS all that often and perhaps that's why is slow to lock each time I try and use it?
Regarding the PRI comment made earlier in this thread. I'm curious how you upgrade your PRI? I've tried the "Update PRI" icon in Settings | Connections, and although it reboots after doing something it's always the same rev afterwards. It also returns an error after it tries to update and prior to the reboot -"backup EFS failed" in a window with a window title of "PPST". Tap okay to that window and the phone soft reboots and nothing has changed.
I also could not update PRI using the icon provided by DCD. He provided the attached cab version in another post. You will have to install it on your device, then run /windows/ppst.exe
Also, be sure to do the GPS fix found at this link:
http://wiki.xda-developers.com/index.php?pagename=TitanGpsFix
These 2 things should fix your lock times.
ande8150 said:
I also could not update PRI using the icon provided by DCD. He provided the attached cab version in another post. You will have to install it on your device, then run /windows/ppst.exe
Also, be sure to do the GPS fix found at this link:
http://wiki.xda-developers.com/index.php?pagename=TitanGpsFix
These 2 things should fix your lock times.
Click to expand...
Click to collapse
I concur, these are the same steps I followed to get aGPS working.
ande8150 said:
I also could not update PRI using the icon provided by DCD. He provided the attached cab version in another post. You will have to install it on your device, then run /windows/ppst.exe
Also, be sure to do the GPS fix found at this link:
http://wiki.xda-developers.com/index.php?pagename=TitanGpsFix
These 2 things should fix your lock times.
Click to expand...
Click to collapse
S-W-E-E-E-E-T! Performed both steps, and got my first lock in about 20 seconds. I'll test it over the next few days in different areas to see if this is now the norm. Many thanks for the info.
No problem. Enjoy!
I am running DCD 4.1.2 and Radio 3.42.40... Of course I am will Bell...lol
My GPS Radio got signal ONCE and never has sice. Do I need to perform the two mentioned steps above?
The Carrier CAB install.
The QPST Modifcations/Fix.
Let me know!
mcfz said:
I am running DCD 4.1.2 and Radio 3.42.40... Of course I am will Bell...lol
My GPS Radio got signal ONCE and never has sice. Do I need to perform the two mentioned steps above?
The Carrier CAB install.
The QPST Modifcations/Fix.
Let me know!
Click to expand...
Click to collapse
Definitely install the carrier cab file (are you getting data right now?) and perform the GPS fix. Beware of the PRI update as I have had issues with PRI 2.02_007.
88fingerslukee said:
Definitely install the carrier cab file (are you getting data right now?) and perform the GPS fix. Beware of the PRI update as I have had issues with PRI 2.02_007.
Click to expand...
Click to collapse
Right now the phone isnt doing squat. I think I am going to downgrade my DCD a lower version then run the carrier cab and GPS fix...
I will do it up and post if I need help

Time Zone issue

Hi All,
I have an issue that's bugging me. I have upgraded to DCD 3.2.6 Rom and now I cannot get my time zone to be correct. I am in Eastern time zone but it keeps showing Atlantic time zone. Also my text messages are 4 hours off. It keeps showing 4 hours ahead of the time I am in. I have tried changing the time zone to no effect.
Anybody with any suggestions on how to rectify this issue? Any help will be greatly appreciated.
Is your phone set to automatically update time from the network?
Settings » Personal » Phone » Services » Time Synchronization
Yes the phone is set to automatically update time from the network.
I have also tried DCD's latest ROM 4.1.2 as well as the Titan Reloaded 1.3.4 ROM, however I still have the same issue.
I believe the problem may be with the radio. I have Radio 3.42.50 loaded and tried to downgrade to a lower radio, but I get an error that it's not allowed or something similar. I am at work right now, I cannot check it.
Is there a procedure for downgrading the radio? I have checked the Wiki, but I am not clear on the process.
Downgrading the radio should work, at least by using the MicroSD card method (check the 6800 Wiki for more information). If not, make sure you have the latest PRL from your carrier, etc. Radio 3.42.50 is good though, shouldn't have problems with it. I have never came across such a problem, so don't know how else I could be of assistance.
Thanks I will try downgrading the radio and returning to a Bell stock rom to see if it will help.

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