yashsingh1/xdaforums huggingface dataset:
[Mogul, XV6800 ROM Development] Cycomachead:
Yeah I know...it's just after sitting in a window (where I can usually get a lock) for a few minutes I haven't gotten a strong signal.

Also does Hot Warm or Cold start make a difference? And in GPSViewer do the WAAS and Power Save check boxes make a difference? I use a cold start and leave them unchecked.
[Mogul, XV6800 ROM Development] gc14:
The names say it all. If you haven't used it in a while use cold start. I really never used hot start because once you get the initial lock, there is no need to prime it again that quickly. I sometimes used warm start. WAAS is moot because gpsOne doesn't support it, and the Power Save is used when you don't want it going to sleep.
[Mogul, XV6800 ROM Development] scotcha12345:
Keystone

Thanks for the workaround Keystone.
[Mogul, XV6800 ROM Development] slimberg:
I live in VA (blacksburg) and my gps signal places me somewhere in North Carolina... Ive successfully done this fix (by successfully i mean i didnt break my phone) and its still giving me inaccurate readings, someone please help me out, thanks!
[Mogul, XV6800 ROM Development] gc14:
Carrier? ROM? Radio?

Also, when it shows you in North Carolina, what program are you using?
[Mogul, XV6800 ROM Development] slimberg:
Im on Verizon, xv6800

dcd 3.1.6

radio 3.39.10

right now im just using Google Maps, I was going to try one of the other progz that people keep mentioning but I was trying to wait to see if google maps is SUPPOSED to work for me before installing others
[Mogul, XV6800 ROM Development] gc14:
When Google Maps is telling you you're in North Carolina, what does it say in the top right corner where it usually says GPS Active etc. Tell me verbatim.
[Mogul, XV6800 ROM Development] scotcha12345:
Hm

Reflashed with the Kitchen. Everythings cool....applying the fix now.
[Mogul, XV6800 ROM Development] gc14:
Reflash the rom, install the carrier cab, and don't install any third party dialers. Then try.
[Mogul, XV6800 ROM Development] scotcha12345:
Got it

Got it going now. I'm sure I installed things that were just blowing it up. Thanks again.
[Mogul, XV6800 ROM Development] Keystone:
fix improves, but not perfection for some titans

GC, I applied the reset to the GPSOne options on my dad's, and it did make a difference. Same as mine, within a minute down to a few seconds he'll now get a sustained lock. Unfortunately the reception maxes out at 5 satellites and a lock is rarely maintained above 2 or 3. Compared to mine, it's also more prone to losing locks with interference.

So this definitely works to improve reception and locks! But, sadly, not all Titans are equal with some cruising along with 10 satellites seen, with many consistently locked, but now with this fix others may now improve from nothing to being lucky to get half of that and at least achieve sporadic locks upon one's position.
[Mogul, XV6800 ROM Development] aguas:
ive been periodically running GPS on my phone since doing this fix, and have found its effectiveness decreases over time. turning off aGPS helps, but it actually takes longer by about 30-60 seconds to get a lock, and even then, it wont connect to any more 6 sats, then drops to 3. i used to get 9 in the same position. ill see what happens with some reg changes and whatnot.
[Mogul, XV6800 ROM Development] parcou:
Just want to say thx for the fix as well...my connection sways but over all it is better and reading this thread has taught me a lot!

I am curious since I am new to this. Does signal strength have an affect on the GPS lock. At home i get no bars and one if I am lucky. I am not sure if GPS radio and radio that hit the cell towers are one in the same or dual independently functions? I do better on GPS connects away from the house...
[Mogul, XV6800 ROM Development] gc14:
I think I've said it about 5 times now....

Do not change ANYTHING in the registry unless it's changing from GPSMode 4 to 2.
[Mogul, XV6800 ROM Development] stevefxp:
Reflash of the Phone

I would assume that when we re-flash the phone we would have to re-install this fix correct?

Steve
[Mogul, XV6800 ROM Development] gc14:
see first post
[Mogul, XV6800 ROM Development] Cycomachead:
Just a bit of a curious question here about QPST: Can I use it to back up my phone's A-key (along with everything else) and after a radio flash (when there is one) restore the config to my phone to not need to call verizon?

I went outside and got 5 pretty good sat. locks. Better than before I think. Thanks again for this and your other contributions and for answering my many questions.
[Mogul, XV6800 ROM Development] gc14:
No for two reasons.

1. I'm URGING people who have limited knowledge about the programming of the qualcomm chipset to NOT use QPST for any reason besides this fix. It's very easy to hose your phone BEYOND being fixable on these forums.

2. The A-key is not stored anywhere because it's a temporary value that is generated differently each time. It's not a value setting such as your MDN, MSID, etc. It's used ONE time to authenticate your phone to the network, and then once authenticated, sets a flag in the system, and then discarded.
[Mogul, XV6800 ROM Development] Cycomachead:
Alright thanks.
[Mogul, XV6800 ROM Development] serfboreds:
Restore

GC,

Out of curiosity to the process. How would one rollback to the previous drivers and settings? For the sake of nerdiness could you explain?
[Mogul, XV6800 ROM Development] gc14:
Well...not sure why you'd want to do that...but you have to load up QPST Service Programming again. Click Load from file and select the backup you made during the tutorial. Then...Write to Phone, close, and soft reset.
[Mogul, XV6800 ROM Development] serfboreds:
Good to know. Nice to know I can be sure I can make a decision based on a solid comparison.
[Mogul, XV6800 ROM Development] Cycomachead:
Yeah I did that testing the differences. I think I picked up some more sats, but it's hard to tell.

One thing to remember: I first backed-up my phone (this is a replacement) before I did the *228 thing. Then when reversed it (after *228) I needed to redo the programming. Makes sense when you think about it. There shouldn't be any problems if your phone was already activated.
[Mogul, XV6800 ROM Development] gc14:
lol are you people still thinking this fix does nothing? come on now....
[Mogul, XV6800 ROM Development] Osteo:
I can verify it does something. Sitting on my couch, where I could NEVER get a lock, it gets one in about 30 seconds. Verified before and after the fix. This is the only place in my house I couldnt get a lock and now I can do so consistantly. I'm running n2c 5067 kitchen with the 3.39.10 radio. Out in the open it seems to give me higher signal bars for the sats I do lock on and possibly speeds up the lock by about 15 seconds (from the 30-90 I was taking before).

edit: Oh, I'm using GPSTest to make the comparisons. I do use the HTC QuickGPS to d/l the sat data and have done the reg edit required for it to work.
[Mogul, XV6800 ROM Development] gc14:
Any of you ever use the HTC GPS Tool? I came across it recently and it proved my theory I had from way back when the GPS roms first came out that there IS indeed a cache on the gpsOne chip. It functions the exact same way as Holux GPS Viewer except it has more debug and dev features AND it has four starts as opposed to GPS Viewer's three (Hot, Warm, Cold). Can you guess what the fourth one is? It's "Clear Memory". I'll never go back to GPS Viewer. When I prime my GPS with HTC GPS Tool, I always use Clear Memory, which I believe (not having done any real research) functions the exact same way as Cold Start, but clears the cache first.
[Mogul, XV6800 ROM Development] serfboreds:
Here you go...

Got it from here:

http://xdaforums.com/showthread.php?t=360477

edit: just used this and I got more sats with that than any other from my couch (before fix, I never saw but one). These two together are the best I've seen. Thanks GC.
[Mogul, XV6800 ROM Development] nickles96:
why is this such a benefit that would make you use this over GPS Viewer?

I'm asking because i really don't know, but would like to; not to try and flame you.. so if you could barney it down a bit, i'd appreciate it ...

i'm a huge fan of GPS Viewer, so if something else does it better, i'm all ears..
[Mogul, XV6800 ROM Development] viper8u2:
does visualgpsce do the same thing?

I have version 1.2.106 from www.visualgps.net

????
[Mogul, XV6800 ROM Development] serfboreds:
I have used that program for a while but it does not have the four startup modes. I do think it has a bit more information between it's "panel" and "stats" screen than does, but I don't use that stuff much. As a primer, HTC tool seems a better cold primer than any I've used with TomTom. I have been getting instant connections. Even if it is a sugar pill, it sure tastes sweeter.

QUESTION: Is it possible to create new cab so that it starts on Baud 4800. Mine seems to reset to max baud. Does that affect lock in this program?
[Mogul, XV6800 ROM Development] Cycomachead:
I use it sometimes, but I find GPS Viewer is faster for priming. My version has a 5th setting "Xtra Start" but when I try to use it I get a message saying it's only supported by qualcomm, which doesn't make sense.

Also wouldn't a cache of recent locks/locations help you get a lock faster or what's the reason for clearing the cache?

I'm going to try the (I think) new version provided by serfboreds.
[Mogul, XV6800 ROM Development] gc14:
In my experiences with this chipset, when you initialize the GPS, instead of trying to lock immediately, it instead brings you to the cached location and THEN attempts to lock.

And nickles, first off, it's developed by HTC for this chipset. Second, as I said, it clears the cache, GPS Viewer does not. Third, it has more features pertaining to the gpsOne chipset.
[Mogul, XV6800 ROM Development] Cycomachead:
Holy crap, I don't know what I did differently than a few days ago, but now I'm getting 7-9 sat locks in my room! :D And it's a bit faster too.

However, there is a downside to the HTC Tool: It won't stay open in the background, at least not for me. It doesn't really matter because once the GPS is primed it works w/o the priming app, but I find it interesting to watch the satellites. Also GPS viewer had refresh issues where it wouldn't report a lock unless you switched apps and switched back.

Now if only I could change the default baud rate....will be back.
[Mogul, XV6800 ROM Development] parcou:
GC or anyone...newbie question...

Performed the update and as you stated 50/50 for some Verizon issue I know. However if I am stating it right, I believe I read that the fix really tones in on collection more satellite connections than locking in 5-30 sec. which most want.

If I got that right, for ones like me who do connect over a longer period of time would using Quick GPS be a negative to this fix? So what I am asking if I installed Quick GPS is this safe?
[Mogul, XV6800 ROM Development] dcd1182:
if you have to obtain a standalone fix (verizon) i would highly recommend quickgps regardless of circumstances.
[Mogul, XV6800 ROM Development] gbenj:
i thought quickgps did nothing, ill go back to it, but i thought it didnt help at all?

edit: dcd, when i did use it, it was when you included it in the kitchen, any chance you or someone else has a cab they could upload?

thanks
[Mogul, XV6800 ROM Development] serfboreds:
Here ya go...

Here is one that I got off a DCD thread some time back.
[Mogul, XV6800 ROM Development] gc14:
I use QuickGPS and then HTC GPS Tool...works beautifully.
[Mogul, XV6800 ROM Development] gbenj:
ill have to try that combo.

what settings with htc gps tool? baud 4800? which dropdown from the box before clicking open? anything else checked?

thanks
[Mogul, XV6800 ROM Development] parcou:
GC14...

Same here pal for the newbie... I loaded the app what not sure in what order should I use it...

So I have the TomTom 6

Do I open this app first and perform a clear memory, cold start, etc. as stated in the previous post what items should I select then what button do I press after that..

Thx
[Mogul, XV6800 ROM Development] serfboreds:
I have been using comm 4, 4800 baud, then select clear then open port then initialize.
[Mogul, XV6800 ROM Development] Spr0ckEt:
Updated today... I had 8-9 sats while driving... My previous was 4-5. Obvious improvement.
[Mogul, XV6800 ROM Development] gbenj:
i still havent seen anything that gives me a huge consistent improvement. im able to get locks, someitmes takes 2-4 min, sometimes closer to 10, i get 2-4 sats from my window(which is facing north in NYC, so i dont think its a good barometer) and like 5ish walking around the streets.

hopefully ill take some trip outside nyc at some point to get a better idea of what its like, outside nyc
[Mogul, XV6800 ROM Development] rhannahs19:
i cant seem to get my phone into the DRM menu. I am using no2chems rom. Neither of the codes are working, and ive looked for the past hour to find a command line utility so that i can run the command string. does anyone know what i need to do? i saw that someone else had done it with positive results with no2chems rom so i was hoping you all might be able to help. thanks a lot
[Mogul, XV6800 ROM Development] Osteo:
Its probably your dialer. You need a dialer that will allow the ## codes so you'll most likely have to go back to stock dialer. I know I've seen threads on restoring stock dialer or even other threads that have dialers that support the ## codes. I'm currently using one called the Minimal Dialer found in this thread http://xdaforums.com/showthread.php?t=395086. Hope this helps.
[Mogul, XV6800 ROM Development] calash:
Here are my results so far.

The test system is a Verizon xv6800 running 3.04 DCD and radio 3.35.04. As noted in the original post this does not match the requisites, however I love to tweak and gave it a go :)

The test program was Windows Live Search.

I got mixed results. Before I had never seen the cache effect some people talked about, however after this update I definitely could see this in action.

Here was my test procedure.

1 - Obtain lock at my house through the skylight. This took 3 minuted and got more satellites than I normally get'

2 - Go to bed. Had dreams that the tree outside got hit by lightning.

3 - Drive to the bottom of the hill the next morning. 1/2 mile, very curvy and hilly.

4 - Obtain lock while driving from bottom of hill to work. Took 5 minutes while moving at my Hyundai blistering speed of 45. This is normal for pre-change testing. What was different was that it instantly locked on my house, where I was the previous night. The arrow was red, so WLS thought I had a GPS lock. Normally it will stay grey until I get a lock.

Once locked I had more satellites then normal.

It is helping, but as stated it is not a miracle cure.

I have a technical question. What is preventing the use of Sprint, or Quest aGps servers on a Verizon phone? Is the IP blocked outside of the network or is there something deeper causing the issue?
[Mogul, XV6800 ROM Development] gbenj:
i think it has something to do with the towers, since when ur on verizon ur not using a sprint tower, the ip ur using doesnt get you any information from the tower.

needs to be a sprint phone connected to a sprint tower for it to work.
[Mogul, XV6800 ROM Development] kflipproductions:
how did you do this fix on 3.0.4?

"""Prerequisites:

ROM: 3.1.6

Radio: 3.39.10

Carrer Cab: Your appropriate carrier cab"""
[Mogul, XV6800 ROM Development] rhannahs19:
yes it did, thank you :D
[Mogul, XV6800 ROM Development] gc14:
Seriously...if you aren't going to follow the instructions and abide by the prerequisites, then don't even bother posting your results as they are irrelevant.

In order to conduct an experiment all other factors must be held constant with 1 variable.

Quite frankly, I don't care what results you are getting with 3.0.4 or the old radios because that's not what is being tested.

If you don't want to take my word for it that 3.1.6 and 3.39.10 is the best combination at the moment fine...to each his own.

But it's useless to apply this fix and post results based on any other combination.
[Mogul, XV6800 ROM Development] nickles96:
dude, you don't have to be so condescending about it.

it certianly IS very relevant that people test with different scenarios.. thats what testing is all about.

i have radio 3.35, and this works perfect.. so whats the freaking harm in saying 'Yes, it works on 3.35 AS WELL AS 3.39'

good grief you make people feel like morons just for asking a simple question.

they can't read ? then they can't read, and it's their own problem.. who cares.

Now.. i do apologize..

I also DO want to thank you very much for this fix ON MY 3.35 RADIO. so thank you..
[Mogul, XV6800 ROM Development] gc14:
Here's the reason for my condescending tone...

I tested this on every possible combination rom/radio BEFORE posting the fix...and found the absolute best results with the latest.

If it's working out nice for you on the old stuff, fine, I'm happy for you. I'm just sick of the posts that say "I'm on 3.0.4 and 3.35.04 and am not getting any results..." etc. There's absolutely no need to post that in this thread. I have already tested it, hence the prerequisites.

I apologize for the attitude, but it happens again and again every day.
[Mogul, XV6800 ROM Development] kflipproductions:
while i've been on the end of short responses about me not reading a post, i actually agree. these forums are so cluttered and messy because of people not simply reading. all you can do on a forum is read, but people still dont do it (GUILTY). gc, you were kind of an ass, but you made your point. there are nicer ways to say what you said, but it doesnt change how true it is. everyone is here for the same reason so instead of talking **** back and forth just upgrade your damn phone and enjoy it. follow the instructions and if you dont follow the instructions, whether its an oversight or you just didnt care, than accept the criticism when someone that obviously knows more than you tells you that you are wrong. its a damn internet forum. relax
[Mogul, XV6800 ROM Development] kflipproductions:
how important is dialing ##3424 after finishing in QPST? i couldnt find the DmRouter.exe so i ran a dos command, but cant do it again without active sync. so can i skip taking the phone out of DMR and just soft reset?
[Mogul, XV6800 ROM Development] gc14:
Yeah that should work.
[Mogul, XV6800 ROM Development] kflipproductions:
thanks man
[Mogul, XV6800 ROM Development] kflipproductions:
GPSMode

there are quite a few posts in this thread about changing GPSMode back to 2 if it had been changed to 4. i applied this fix, soft reset, and got an INSTANT lock inside the middle of a 3 story brick building. instant. There was alot about switching back to 2, but not about why. is it important enough that i should still set GPSMode=2?
[Mogul, XV6800 ROM Development] gc14:
The reason is because GPSMode=4 does nothing on VZW.
[Mogul, XV6800 ROM Development] kflipproductions:
good enough for me =) thanks
[Mogul, XV6800 ROM Development] parcou:
Same here but no complaints..I read the rules and pros/cons beforehand...

I am a former programmer for FedEx so GC I understand your point. It's so easy to overlook what 1-2 people contribute and doing when when you are on the free receiving end...debugging is no fun & requires time...and especially when everyone is asking you "Why does this...." good job dudes...

If' it did not work we always have the OEM rom so no one forced this on us :-)

Rgds,
[Mogul, XV6800 ROM Development] gbenj:
for the record, i wasnt complaining either, just stating what i saw.
[Mogul, XV6800 ROM Development] parcou:
Ohh...I know....my fault for running the two replies back to back in the same message...

My reply to your was separate meaning I agree. The other was about the other issues GC was posting about since I was a former programmer...so enough I do not want to get off topic

....

back to topic please :-)
[Mogul, XV6800 ROM Development] gbenj:
good idea, i second that
[Mogul, XV6800 ROM Development] cleanser:
I can say that this has increased the amount of satellites I get from my apartment window. Before I could never get a lock (now I get 4 sats), and the only way I could get a lock before was from the dashboard of my moving car which took about 2 minutes.

Also, after reading through all 15 pages of this thread :eek:, the HTC-GPS app works much better for me than GPSviewer.

Oh and this was from a fresh rom update to DCD 3.1.6, and already had 3.39 radio. I had to do a few soft-reboots and a single memory cache clear of the GPS receiver.

Thx GC & DCD for all the hard work!
[Mogul, XV6800 ROM Development] gbenj:
does anyone else see the htc gps tool slow down their device? when i run the app it is usually slow to respond, and then if its running in the background, its almost almost impossible to run anything else on the device.

anyone seen this?
[Mogul, XV6800 ROM Development] gc14:
It's not meant to run in the background. You fire it up, let it lock, then close it. Then you launch your GPS software of choice.
[Mogul, XV6800 ROM Development] parcou:
OK!!!! that is what I am doing wrong....yes it does slow my device down due to me running it in the bg...I did not know. Now I am still trying to figure this out and a good member here pm me stating to set the com, speed, (clear, cold, hot, etc.) option I forget right now then the open button...what I was not doing since I did not know was to hit Nav afterwards.

Now you are saying wait until lock...I assume lock is not when the satellites are red...???..??? not certain what locked would look like in the app...?

Thx
[Mogul, XV6800 ROM Development] gc14:
Com4/baud rate 4800/Clear Memory

Click Open, then click Nav. Init. It's locked when the bars turn from red to green in the Satellite tab.

P.S. In the Satellite tab it tells you what Mode you are using (GPSMode). For all you people who don't believe me that it does nothing, go ahead and try to set GPSMode=4 in the registry, and see what it says it's using after....
[Mogul, XV6800 ROM Development] rhannahs19:
i have been reading in this thread that after the edit to the phone, people are getting better results using gpsmode 2. however, i am seeing in older posts like over on ppcgeeks that people are saying that using mode 4 works better.

so if i am correct it appears that mode 2 is better to use after these edits have been made? mine was already set to gps mode 2 with no2chems rom and i didnt have any luck connecting to sats, however ive only gotten a connection once and that was awhile ago. so i changed my gps mod to 4 now and im testing it out, dont seem to be having much luck. i am using htc gps tool com4 4800 baud rate, open gps, then clear memory and int gps. do you guys have any suggestions to get my gps workin? should i change back to mode 2?

one more thing:

i did set registry to mode 4, soft rest and htc gps still says mode 2... WHAT DO I NEED TO DO ARGH!!!! Thanks
[Mogul, XV6800 ROM Development] gc14:
Ok....EVERYONE needs to go check the first post again as I have made an update to it.
[Mogul, XV6800 ROM Development] rhannahs19:
sorry i was reading so much information here and there. Even with GPS MODE 2 i do not have very good results, I'll see two or three sats at a time, but will never connect to them. any ideas? thanks
[Mogul, XV6800 ROM Development] gbenj:
GC, sorry if im saying something u wanted secret, but seeing as its in your sig, you cant be trying too hard to hide it.

what in the heck is radio 3.42.02, and where can i get it?

is it stable? wheres it from? better gps, cmon, post about it on the forum, before bragging in your sig about it.

thanks
[Mogul, XV6800 ROM Development] dcd1182:
i think he wanted to see how long it would take someone to notice :D

its stable, doesnt seem much different, except my GPS is a little slower on sprint. I'll post it today.
[Mogul, XV6800 ROM Development] gbenj:
haha, cmon, was i really the first one? also, did a google search for it, and his sig seems to be the only place on the internet that its coming up. so if you dont mind me asking, where is it from?

thanks
[Mogul, XV6800 ROM Development] gc14:
hehehe gbenj wins the boobie prize