Related
actully, it is a 50kB tiny software once came with official rom......working on wm6.
it have only a simple dialog. Auto-select Multi-language.(i see some resouse in Ita, Ger... ...)
Function:it downloads a 3-days global sattelites position data into your mobile, (use GPRS about 1kb), then in next 3 days, the navigator software(like tomtom) will get sattelites signal in 5 seconds!!! no matter how you shutdown or reboot.
i have no idea how it works, but it really works wonderful !!
After data downloaded, it can be exit (the data will still working), so it won't occupy any memory.
as i said in my other threads, my english sucks, and maybe something i am posting is a ages-old-news to others, but please dont laugh at me
Works great!!!!!!
Thanks.
Can you please clarify from which "official" WM6 rom you took that out from?
Hope you are not talking about MIO A701 and it wasn't placebo effect
ww2250 said:
Can you please clarify from which "official" WM6 rom you took that out from?
Hope you are not talking about MIO A701 and it wasn't placebo effect
Click to expand...
Click to collapse
it is from a Dopod (oem from HTC) simplify chinese and China Mobile Company oem software wm5 rom. Should exist in some other language rom but so far no further infomation about souce.Delivered too many times before i get it.
nothing Copyright&About info in this software, but it is very well designed and someone spend lots of time to make it good and with so many languages. although it is old, the server which it gets data from is still working fast and the satellite position data is uptodate every hour. so i guess it must come from something big, like HTC company or a global orgnization.
it is ok for you to doubt its effect (because i did too)
For example, if you usually need about 2 minutes to let navigator working after a cold-reboot. Install this software and update once, then do as many reboot as you want, however the navigator will take only 5 seconds to get satellites, except you are staying in house or you run the navigator after more than 3 days from you last update.
the compare result should be obvious, But i am glad if u tell me it is not working on yours, cause i cant figure out how it working.
no problem to install the log on my trinity, but the download of the satellite base is impossible by GPRS or wifi !
thanks.
does it download data via HSDPA?
Just tried this on my Trinity. Installs fine and downloads ephemeris data via ActiveSync fine but doesn’t appear to decrease TTFF…
There’s been plenty of banter around why A-GPS (whether it’s from your carrier or pre-downloaded) won’t work with the Trinity driver for the GPSOne QualComm chip, but I thought I would try anyway. Love to be proven wrong
download ok after a soft reset.
but in TomTom, no change; so don't work on (my) trinity ...
Hi,i think like quickgps that is a placebo effect with qualcomm
installs and downloads the ephemeris file fine.
Not sure it actually doing anything- as posted by numerous other folks.
Even so, it was a very good price ;-)
this morning i tried once more, and it takes 30 seconds, didn't works as good as yesterday. but still faster then normal.
i believe the reginal setting should be setted to real location.
monamibouli said:
no problem to install the log on my trinity, but the download of the satellite base is impossible by GPRS or wifi !
Click to expand...
Click to collapse
same thing
kalechen said:
it is from a Dopod (oem from HTC) simplify chinese and China Mobile Company oem software wm5 rom. Should exist in some other language rom but so far no further infomation about souce.Delivered too many times before i get it.
Click to expand...
Click to collapse
Let me fill you with the gaps:
SeaSGEE.exe
Company: MiTAC
File Version: 1, 0, 0, 1
Internal Name: ee
Sounds familiar with you?
ww2250 said:
Let me fill you with the gaps:
SeaSGEE.exe
Company: MiTAC
File Version: 1, 0, 0, 1
Internal Name: ee
Sounds familiar with you?
Click to expand...
Click to collapse
Thanks, i use the file name to search and find more info
http://forum.xda-developers.com/showthread.php?t=292178&page=3
for me it's work fine : I've just instal and try it with TomTom. It take 20sec to do the cold first fix. If it's a placebo it's a good one!
My usually cold first fix was in 1 or 2 min.
ps : I use UDK WM6. Gps settings : com9, 57600baud / TomTom settings : other NMEA GPS, COM9, 57600baud
My S300+ is now as fast as my old MioA701.
Does not seem to work on my Trinity here in the UK,
still takes for ever to get a fix.
Guys, I don't want to pour cold water on to your dreams - but this cab is for Mio, presumably A700/A701 that contains a SiRF-III chip. This would be useful to P3300 aka Artemis - but should have no effect on those Qualcomm chips.
If someone do get the version from Kaiser working on Trinity, I'm more than happy to know
Just installed, downloaded satellite file.
Did a very very cold fix (a few months without launching TomTom) : took 5 min to fix.
My 2 cents : definitely placebo effect
SeeGSEE
I tried to use this on my P3300 for a couple of weeks and it never worked. Gave me some error about network connection not made. I just uninstalled it and went back to using the Quick GPS Fix file that redirects the DL from different servers (unknown) from HTC's. Don't know how effective it is but it downloads at least.
shawndh said:
I tried to use this on my P3300 for a couple of weeks and it never worked. Gave me some error about network connection not made. I just uninstalled it and went back to using the Quick GPS Fix file that redirects the DL from different servers (unknown) from HTC's. Don't know how effective it is but it downloads at least.
Click to expand...
Click to collapse
ENG
after i dowload the file i close quick gps...then before start tomtom i have to start quick GPS? quickGPS no need run in background? i start quick gps only for download file?
ITA
una volta scaricato il file, prima di avviare tomtom devo avviare sempre quick GPS? oppure non serve avviare quick GPS? va avviato solo per il download? non necessita sia in background?
OK, so I have been reading a lot on the gps capabilities of the vogue, and have seen a lot of things out there like the virser gps dll, reg-hacks, gps kick-start, quick-gps, mmeto, and different gps drivers that can all supposedly change the speed at which the gps can get a lock. on a thread over at xda tabout the quickgps one, they were able to get fixes/locks after only about 20-40 seconds! thats the kind of thing we all need...
there is definitely an awful lot of stuff about it, and i have grown pretty confused i must say. i have a sprint vogue and would REALLY like faster connection times.
if there is ANYONE who has some consolidated facts and real numbers/evidence about what (combination) works best, i would greatly apprecaite it, as im sure would many many others.
even though you may have the urge, plz do not post here for at least 1-2 days if you do not have some good evidence/clear consice instructions on how to improve gps signal quality.
thanks a lot guys!,
Jim.
EDIT: FOUND THE ULTIMATE FIX!! look here: http://forum.ppcgeeks.com/showthread.php?t=26410 difference is incredible
i'm using the stock "leaked" ROM for 2+ days without the virser gps dll and without any of the GPS hacks. with Garmin Mobile XT using the GPS Intermediate Driver, i get locks on 7-9 satellites within 30-45 seconds when outside and within 120 seconds when inside. on the flip-side, when using iGO 2006+ with COM 4, it takes 3-6 minutes to get a satellite lock. i used my Sprint Touch to capture this pic on a "recent" west-to-east coast flight....notice the number in the lower left hand corner
I'm using a rom I cooked with the new 3.0x kitchen I cooked using ppcgeeks kitchen ... it's based on the same "leaked" rom .. just customized for me ... anyway ... I get the same kind of lock times listed above ... I use an old version of mapopolis when I travel and google maps while in town (no data connection 5 miles outside of town ... I live in the great wild west ... ya know ... lots of wide open spaces .. LOL) anyway, with google maps I get about 3-5 yards accuracy ... with mapopolis ... maybe a little better ... but always 6-9 satelites ... and no hacks ... I do use htc quick gps ... seems to help
Fuzzy
cortezzi said:
i'm using the stock "leaked" ROM for 2+ days without the virser gps dll and without any of the GPS hacks. with Garmin Mobile XT using the GPS Intermediate Driver, i get locks on 7-9 satellites within 30-45 seconds when outside and within 120 seconds when inside. on the flip-side, when using iGO 2006+ with COM 4, it takes 3-6 minutes to get a satellite lock. i used my Sprint Touch to capture this pic on a "recent" west-to-east coast flight....notice the number in the lower left hand corner
Click to expand...
Click to collapse
hmm ok thanks a lot for your detailed response. care to attach/point me to the "GPS Intermediate Driver"? so i can see if that might help out my situation, because i am certainly not getting anything like 7-9 locks within 45 seconds.
also, is this on cold or soft boot/start of gps?
FuzzyWuzHe said:
I'm using a rom I cooked with the new 3.0x kitchen I cooked using ppcgeeks kitchen ... it's based on the same "leaked" rom .. just customized for me ... anyway ... I get the same kind of lock times listed above ... I use an old version of mapopolis when I travel and google maps while in town (no data connection 5 miles outside of town ... I live in the great wild west ... ya know ... lots of wide open spaces .. LOL) anyway, with google maps I get about 3-5 yards accuracy ... with mapopolis ... maybe a little better ... but always 6-9 satelites ... and no hacks ... I do use htc quick gps ... seems to help
Fuzzy
Click to expand...
Click to collapse
hmm ok right i see. thanks. i recently cooked a rom (which i have done plenty of times) but with the newest ppckitchen.org kitchen for the vogue, and it is SOOOO SLOW so im not sure if thats what im going to keep using.
cortezzi said:
i'm using the stock "leaked" ROM for 2+ days without the virser gps dll and without any of the GPS hacks. with Garmin Mobile XT using the GPS Intermediate Driver, i get locks on 7-9 satellites within 30-45 seconds when outside and within 120 seconds when inside. on the flip-side, when using iGO 2006+ with COM 4, it takes 3-6 minutes to get a satellite lock. i used my Sprint Touch to capture this pic on a "recent" west-to-east coast flight....notice the number in the lower left hand corner
Click to expand...
Click to collapse
When you use Garmin on the GPS Intermediate Driver, don't you get the time/date reset problem? The only time I don't get that problem is when I have it set to COM4. Its really annoying lol.
mindfrost82 said:
When you use Garmin on the GPS Intermediate Driver, don't you get the time/date reset problem? The only time I don't get that problem is when I have it set to COM4. Its really annoying lol.
Click to expand...
Click to collapse
i ran into the time/date issue once with the GPS Intermediate Driver (GPSID) when i lost the signal going into an underground parking structure. everytime i attempt to set GPS to COM 4, GM XT searches and searches and searches and seems to never connect. GM XT then defaults back to the GPSID. funny you mention the GPSID-time/date relationship: today, for the first time in 5 months, i ran into the same date/time issue today while using my Samsung BJ II. i'm inclined to believe the recent XT updates introduced this problem.
@jim256 - the GPS Intermediate Driver (GPSID) is (as i understand it) a native WinMo 6.0 driver that included with our respective Touch devices.
Cold start times are always going to be slow. That's why the GPStoday plugin is such a valuable addition! If you haven't tried it yet, you need to take a look at it...
jim256 said:
hmm ok right i see. thanks. i recently cooked a rom (which i have done plenty of times) but with the newest ppckitchen.org kitchen for the vogue, and it is SOOOO SLOW so im not sure if thats what im going to keep using.
Click to expand...
Click to collapse
Run the updater and get the Vogue 3.0x Kitchen ... I cooked a ROM that is smokin fast ... gps works great ... I put dcd's uc module in the user section ... all in all it's the best rom I've had ...
Now if only the Vogue had a flash ... would truely love to have a flashlight in my phone ... hehehehe
FuzzyWuzHe said:
Run the updater and get the Vogue 3.0x Kitchen ... I cooked a ROM that is smokin fast ... gps works great ... I put dcd's uc module in the user section ... all in all it's the best rom I've had ...
Now if only the Vogue had a flash ... would truely love to have a flashlight in my phone ... hehehehe
Click to expand...
Click to collapse
ya i had it all updated, and was of course using the 3.x kitchen. but i tried it again and all seems well now. either i put something bad in, or didnt hard reset after flashing. but o well im good to go now
thx anyway.
see edit in first post!!
does it really take this long to find a satellite on the vogue? my titan locks in under 5seconds!
t0mmyr said:
does it really take this long to find a satellite on the vogue? my titan locks in under 5seconds!
Click to expand...
Click to collapse
see the first post edit, after performing the necessary steps to update the pri it locks in about 5 seconds...
As we all know Lg ks 20 and htc kaiser use the same processor. Is it possible to use the gps driver from Kaiser in order to enable the gps reveiver (if there is an antena) for the Lg? The idea is based on the fact that the Kaiser users use our video driver to improve their video performace. Maybe we can also use their driver to enable the gps. The Kaiser's users can help us here to our try.
The registry location of the gps driver of the Kaiser is:
[HKEY_LOCAL_MACHINE\System\CurrentControlSet\GPS Intermediate Driver]
I think that the driver is the "QualComm GpsOne Card". You can view some registry values for the gps of the Kaiser here:
http://forum.xda-developers.com/showpost.php?p=1735972&postcount=112
I think that what we need is descpribed below:
In fact, most QGPS implementations, including the SiRF-III and the Kaiser's Qualcomm have 4 layers of software to make the whole thing work.
The first being the GPS channel driver itself obviously. The second is an GPS intermediate driver, which is somewhat a managed com port driver.
The third - the most important one - being a QGPS service (in Kaiser) / a helper background process (in SiRF-III) running in the background to actually use the downloaded quick gps ephemeris/almanac data to calculate satellite positions, and then upload it to the GPS chip. It is indeed contrary to popular believe that you upload the whole QGPS file to the GPS chip and let it do all the computation. This is actually quite impossible given the processing power of such a small chip and very limited memory. The data crunching must be done with a processing unit running off the chip, i.e. on the host device. In a SiRF-III implementation, the real-time ephemeris/almanac data obtained by the GPS are actually being written back to the QGPS data file, presumably in an attempt to preserve the most updated data in a data store.
Click to expand...
Click to collapse
Already I found the gps driver and the quick gps in Italian language from the Kaiser rom thanks to Guybrush. You can find it here:
http://forum.xda-developers.com/showthread.php?t=307387&page=3
post 23
I install it in lg. After the instalation it obviously seems that all the registry values are similar to the Kaiser for quick gps and the gps driver, but the gps is not activated and the quick gps program does not start at all. I don't know if it is a good start but its a good opportunity to try something for enabling the gps in lg ks20 if exists. Maybe we have also to make some changes in the nv backup file. I don't know.
If anyone knows what we can do next please share it with us.
If it s possible it will be so nice
Are you sure the hardware is the same as the kaiser?
thorfr said:
If it s possible it will be so nice
Are you sure the hardware is the same as the kaiser?
Click to expand...
Click to collapse
Both use Qualcomm MSM 7200, 400MHz processor core. Also in the nvbackup file of the lg you can find something like the following lines:
xtra1.gpsonextra.net/xtra.bin
xtra2.gpsonextra.net/xtra.bin
xtra3.gpsonextra.net/xtra.bin
where are also used I think from Kaiser.
antenna
I don´t know much about this, but I think that besides the chipset, the device needs a gps antenna to work - and I highly doubt there would be a spare one in the ks20...
Chartres said:
I don´t know much about this, but I think that besides the chipset, the device needs a gps antenna to work - and I highly doubt there would be a spare one in the ks20...
Click to expand...
Click to collapse
This is true. There must be a gps antenna in order to make it work. But we will not know that unless someone open the device or make the gps functional working through the gps driver. The second option is easier I think...
But we will not know that unless someone open the device
Click to expand...
Click to collapse
You can see here in french
http://www.forummobiles.com/index.php?showtopic=159809&st=0&start=0
thorfr said:
You can see here in french
http://www.forummobiles.com/index.php?showtopic=159809&st=0&start=0
Click to expand...
Click to collapse
According to this site there is no gps antenna into the ks20. If someone else can check the photos and can see a gps antenna, then we can continue searching for enabling the gps driver. But for know everything seems bad...
I found some info about the TP2 and the TD2 that's confusing.
On htc's specification page of the TP2 and the TD2 it says that GPS is: Internal GPS antenna.
On Gsmarena.com it says:
TP2 GPS = Yes
TD2 GPS = Yes, with A-GPS support
Which gps device will the TP2 and TD2 have?
I've heard that some have had problems with the A-gps dropping satsync and that disabling the "A" solved this.
I previously had a Xperia which I got refunded because of the constant cracking backside.
The Xperia (A-gps) had a gps lag that wasn't fun at all.
When I compared the Xperia to my Mio P550 the xperia had a lag of roughly 30meters while the P550 had <5meters.
The P550 does not have an A-gps.
Which is better to have? Gps or A-gps?
Though it's not on the official sight, I could have sworn I saw somewhere it was AGPS. My understanding is that AGPS > GPS because it's using cell towers to assist it when satilite signal is low like in buildings and downtown areas.
Poke_N_PDA said:
Though it's not on the official sight, I could have sworn I saw somewhere it was AGPS. My understanding is that AGPS > GPS because it's using cell towers to assist it when satilite signal is low like in buildings and downtown areas.
Click to expand...
Click to collapse
Htc lists the original touch diamond gps as a-gps, But on the original touch pro it's listed as Internal GPS antenna.
Is it only a typo? or do the original TD and TP have different gps devices installed?
As far as I remember AGPS is Assisted GPS that should start quicker as it is being assisted by phone network it self - it will know qucker the position you are in
http://en.wikipedia.org/wiki/GPS_Phone
Vipeone said:
As far as I remember AGPS is Assisted GPS that should start quicker as it is being assisted by phone network it self - it will know qucker the position you are in
http://en.wikipedia.org/wiki/GPS_Phone
Click to expand...
Click to collapse
You are absolutely right about how the Agps works, but I already knew that
The question is wether the TD2 and TP2 are going to be equipped with Agps or not.
I remember the discussions when the mogul came out. The specs said the chips had agps in them. When ever the topic came up about if sprint would expose it to programs or if it could be hacked someone would come in and say,in their obnoxious condescending tone "The mogul **ONLY** has agps,not real gps so the answer to your question is the same as the last 100 times it was asked,NEVER!!!!"
Then sprint activated GPS for us.
AGPS is a superset of GPS btw,it has everything that a vanilla GPS chip has plus the ability to get information from the towers as well. So GPS is defiantly "better". As far as I know all the qualcomm chipsets have agps.
pflatlyne said:
I remember the discussions when the mogul came out. The specs said the chips had agps in them. When ever the topic came up about if sprint would expose it to programs or if it could be hacked someone would come in and say,in their obnoxious condescending tone "The mogul **ONLY** has agps,not real gps so the answer to your question is the same as the last 100 times it was asked,NEVER!!!!"
Then sprint activated GPS for us.
AGPS is a superset of GPS btw,it has everything that a vanilla GPS chip has plus the ability to get information from the towers as well. So GPS is defiantly "better". As far as I know all the qualcomm chipsets have agps.
Click to expand...
Click to collapse
I had a Xperia that has the same qualcomm chip. It had a gps lag that was very annoying. HTC have used different ways of writing gps or agps in their specs on phones that have the qualcomm chip. That's why I asked this Q in the first place. But I don't think the gpslag is hardware related, it's more an issue of poor gps drivers.
As far as I know one can disable Assisted GPS in the register. You then keep GPS ...... so why should a phone with AGPS be worse then one with GPS. Again i believe when you disable the assisted part you keep the GPS
http://mobilitysite.com/2008/02/assisted-gps-2/
So in theory an AGPS system could be better. The only problem is that some software does not like the assisted part. I did disable ASSISTED gps in my registry and use the normal GPS with satisfaction in my Tytn 2.
dgh said:
As far as I know one can disable Assisted GPS in the register. You then keep GPS ...... so why should a phone with AGPS be worse then one with GPS. Again i believe when you disable the assisted part you keep the GPS
http://mobilitysite.com/2008/02/assisted-gps-2/
So in theory an AGPS system could be better. The only problem is that some software does not like the assisted part. I did disable ASSISTED gps in my registry and use the normal GPS with satisfaction in my Tytn 2.
Click to expand...
Click to collapse
That's not the issue here...
I know what Agps is and how it works. So please do not post any links to www.agps.org or any other google on "how agps works.net"
Why did HTC use different names for the same chip? explain that instead.
the gps is not a spc chip it's in the qualcomm cpu along with 3g and wifi
will the touch pro be like the iphone, where you can go into maps and it will be of no additional cost other than the data plan, or will you have to subscribe to a gps data plan? anyone know or think they know?
EazyDeazy said:
will the touch pro be like the iphone, where you can go into maps and it will be of no additional cost other than the data plan, or will you have to subscribe to a gps data plan? anyone know or think they know?
Click to expand...
Click to collapse
I don't get you. GPS costs nothing. Only internet and making calls, for that you have to get dataplan. No other costs.
quarintus said:
I don't get you. GPS costs nothing. Only internet and making calls, for that you have to get dataplan. No other costs.
Click to expand...
Click to collapse
He probably was referring to some sort of maps/directions database subscription. I can't think of the name of any of them right now, but it's pretty common to get charged $10+ a month for stuff like that.
I assume the TP2's will work with Google Maps and you won't be required to subscribe to any database to get decent use out of the positional information the antenna provides.
emwdava said:
That's not the issue here...
I know what Agps is and how it works. So please do not post any links to www.aps.org or any other google on "how agps works.net"
Why did HTC use different names for the same chip? explain that instead.
Click to expand...
Click to collapse
sorry mr. senior member
dgh said:
sorry mr. senior member
Click to expand...
Click to collapse
No problem. I guess you got me on a bad day... sorry about that.
Hi guys,
Previous Kaiser owner here upgraded to Rhodium recently.
I'm asking HTC the same question as well, does Rhodium support AGPS or not. I'm quite sure it does - though I don't have a answer from them yet.
Check this link out from HTC support site - http://www.htc.com/sea/faqs.aspx?p_id=250&cat=266&id=92408
The touch pro 2 has agps but it disabled by default you have to enable it using advanced config 3.3 then it works very well cutting time to sync from 60 seconds to 15 seconds when opening google maps.
Jeremy
If anyone is interested I have got A-GPS working on my TP2, unbranded standard WWE ROM, Vodafone UK network.
The steps performed are as follows (As always, Use at own risk, make sure you have a backup etc etc...)
Install T-Backs GPS fix http://forum.xda-developers.com/attachment.php?attachmentid=188959&d=1243353858
The CAB above sets the defaults for tha ATT network, the following settings are the ones I use, and should work anywhere (AFAIK).
[HKEY_LOCAL_MACHINE\Software\HTC\SUPL AGPS]
"EnableAGPS"=dword:00000001
"GPSMode"=dword:00000002
"TLSHostName"="supl.nokia.com"
"ServerURL"="supl.nokia.com"
"Network"="internet"
"GPRSConnection"="Contract Internet"
"DynamicURL"="supl.nokia.com"
"APN"="internet"
"CloseConfirmMsgTime"=dword:00000000
"PrivacyMethod"=dword:00000000
"EnableLocInfo"=dword:00000001
"ServerPort"=dword:00000000
"EnabledPrivacyMethod"=dword:00000001
"QosPerformance"=dword:00000059
"QoSAccuracy"=dword:00000032
"TimeBetweenFixes"=dword:00000001
"NumberFixes"=dword:3b9ac9ff
Click to expand...
Click to collapse
and
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\RIL]
"AGPSNVSetting"=dword:00000001
Click to expand...
Click to collapse
Note you will need to change the APN, network and GPRS connection to suit your network
This fix definatly works on my phone, I have analysed the debug logs and the NMEA logs and can see the data being downloaded and injected into the driver.
I now get a cold GPS fix in less than 20 seconds, whereas with AGPS turned off I could be waiting for 5 minutes or more for a cold fix.
To see if it is working on your Phone, first you should see a GPRS data connection established then using the HTC GPS test tool to examine the NMEA data you should see a $GPCELL entry after a few seconds.
Hope this helps.
Tom
hey Tom, something you might find of interest,
I had already set up my agps as you have said above with nokis.supl and my agps was workin great, after reading your post i changed the Reg setting for Ril/driver to 1 and SR ( mine was set to 5) as you suggested. and although i was still recieveing the NMEA info, i couldn't get a lock, changed it back to 5 and Lock from cold in 15 seconds!!
I don't know what the decimal 5 instructs and possibly its radio related? i am still using stock 3.44.25.25.27
Anyway great post
Frogfoot, how does the performance with A-GPS enabled compare to the performance with it disabled? How sure are you a) that A-GPS actually is enabled, and b) that it is A-GPS that is making the difference? I ask, because I can get a lock in 10 or 15 seconds with A-GPS turned off. Simply installing the GPS patch did that for me!
How does the performance with A-GPS enabled compare to the performance with it disabled
Click to expand...
Click to collapse
I have found that I get a much faster lock when 'cold starting' the GPS, ie after the ephemeris data has expired (if you havent used the GPS for say a week) or you have changed location by say 50 miles since you last used GPS. Without aGPS a cold start would take several minutes, however with aGPS working it takes a matter of seconds. (there is no difference in a 'warm' or 'hot' start scenario).
How sure are you a) that A-GPS actually is enabled
Click to expand...
Click to collapse
I installed the debug tools and could see the procedure calls reading the registry entries, opening the GPRS connection downloading the data etc. And I also used the HTC GPS tool to log the NMEA stream and searched through to find the response from the supl.nokia.com server in a string marked $GPCELL
I ask, because I can get a lock in 10 or 15 seconds with A-GPS turned off.
Click to expand...
Click to collapse
I expect that what you are seeing is what is known as a 'warm start' where the GPS chipset has cached the Almanac and ephemeris data for the last known position and uses that to jump start the connection. That is fine untill you go for a long drive/flight with the GPS off and then it assumes you at the old location or there abouts. This can cause the GPS to think that the wrong satalites are overhead and therefore take longer to lock on. The other scenario which benifits from agps is if you dont use the GPS for a while, the cached Almanac and ephemeris data expires and needs to be downloaded again. This is what causes the long TTFF (time to first fix)
Quick GPS as far as I can gather is supposed to download predicted almanac and ephemeris data for your region and inject that into the GPS driver to facilitate a faster TTFF however I have yet to notice any difference when QuickGPS is up to date as opposed to it having expired data.
Hope this clears it up a bit.
Cheers
Tom
osrix25 said:
hey Tom, something you might find of interest,
I had already set up my agps as you have said above with nokis.supl and my agps was workin great, after reading your post i changed the Reg setting for Ril/driver to 1 and SR ( mine was set to 5) as you suggested. and although i was still recieveing the NMEA info, i couldn't get a lock, changed it back to 5 and Lock from cold in 15 seconds!!
I don't know what the decimal 5 instructs and possibly its radio related? i am still using stock 3.44.25.25.27
Anyway great post
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Very interesting, do you usually connect with GSM or 3G? I have only tested this with GSM, and have not experianced the problem you describe.
Tom
For completeness sake here are two useful apps for general GPS testing
CleanGPS.cab, very useful to reset the ephemeris and almanac data and HTC GPS Test tool for diagnosing GPS fix problems
Apologies if this has newbie written all over it... What would I need to change for this to be compatible with T-mobile US service? Looking at the cab registry keys, it looks like I should be fine as is.
Thanks!
Thought I would mention what I've been using on my TP, very similar with a nice cab.
http://forum.xda-developers.com/showthread.php?t=478199&highlight=t-mobile+agps
The only thing you might wanna change is the connection settings to match the name of your data connection...
For the benefit of us newbies, could someone clarify what changes (if any) need to be made to the above registry values to get this working on O2 in the UK (if this is possible)?
Already test mine using agps setting from frogfoot, but it doesn't work on my TP2,
Frogfoot may i know what Radio version you used to enable AGPS on TP2
Thanks
I know my GRPS connection, but is there anybody know what is "APN"? How can I set it?
I found here the APN setting is empty.