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Palm Pre and GPS (Additional GPS modes: Autonomous, Assisted, and Cached)

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Old 04/24/2011, 11:42 AM   #601 (permalink)
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Unhappy GPS systematic fix every 30s

Hi All members,

I am new to this forum and I would like to ask a question.
I live in France and I have a Pre plus over SFR network.
Since my 2.1 update, I am experiencing a strange behavior with my GPS.
The initial fix is taking roughly 30s to 1 mn which looks fair to me but upon tracking with google maps or whatever location based tool (minimap, BFG Maps...) I cannot get a new fix before 30s
So I have to wait exactly 30s between each new fix . This is very cumbersome to me when driving.
It looks to me as if the GPS were not saying "ok" and give the coordinates when available but waits until an timeout triggers to send the coordinates to the application.
Maybe my GPS is running under a strange mode ?
Power OFF and ON did not resolve the issue either.
Also, I have to say that this happened when upgrading to webos 2.1 with German ROM. I tried to "doctor" my Pre plus with the French Rom which is available now but the behavior is the same.
I don't know if any of the different tools and methods presented in this thread would be helpful to me.
If anybody could give me some advice, I would be very thankful.

Thank you in advance,

Marc

Last edited by MarcJabes; 04/24/2011 at 12:19 PM.
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Old 07/04/2011, 12:09 PM   #602 (permalink)
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Quote:
Originally Posted by santos View Post
I didn't make any of these changes. However, I was in Germany and Austria for the past two weeks and the GPS did not work unless I had a wifi connection.

I tried all sorts of tests with the phone in airplane mode and while searching for a Sprint signal. Obviously there was no CDMA there but wifi was.
I don't really have time to scroll through 30+ pages of posts, so I don't know if this was commented on before, but I had this hack set-up (with confirmed acquisitions without any data connection, using Mapping Pro Plus on a Sprint Pre-, which I guess makes it obvious I'm from the US), and tried using GPS in Mexico on vacation with pre-loaded maps. It didn't work unless I turned on Wifi.

The weirdest thing was that after turning Wifi on and my pre "knew" I was in Mexico, it still wouldn't update further, i.e. my location stayed the same as when I had wifi on and the date/time of last fix reflected that, regardless of where I went. If I left the app open it seemed like battery was draining faster (using Battery Monitor), so maybe it was still trying, but I left that thing open for the better part of the day and it never managed to get a fix.

Anyone had any success in getting it to work in a different country than origin?
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Old 07/19/2011, 04:06 PM   #603 (permalink)
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After meta-doctoring my device it does not seem that I can acquire a gps location. I just downloaded NDrive and hoped it would work but with Verizon's terrible GPS system I guess I was wrong. Keep in mind before the meta-doctor my gps was working fine. However each time I would have to open VZ navigator to get a reading.
1. I have tried to get a location with just gps turned on and google off.
2. I have tried the GPS fix that is availble and I continue to get either a permanent error or a GPS timeout.
3. I have tried to run the fix and get a gps error, error occured.
Does anyone have any suggestions?
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Old 08/17/2011, 09:06 AM   #604 (permalink)
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Are there any Diagnostic Drivers available for the Pre2? (Looks like there were some, but the post has been deleted.)
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Old 09/16/2011, 10:31 AM   #605 (permalink)
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Help Help
Attempting this tweak on Pre- with 1.45.
Device is in Dev mode
USB Passthrough enabled
QPST installed
But having issue with win7 64 drivers. I followed various other posts that mention modifying inf files, but I cant get win to recognize the device. I have manually forced the drivers from a specific folder to device manager, but QPST configuration does not find the phone. I will attach the driver file that I am using. I modified the "HtcVcomV64.inf" file and modified the following section to look like this:
[Models.NTamd64]
%OEMDevice00% = OEMPort00, USB\VID_0830&PID_8003&MI_01

as mentioned in this thread: http://forums.precentral.net/webos-t...s-drivers.html

I know that several attempts using various files have given some of you success, but can someone who was successful at this KINDLY spell out what they did, and what files they used?
Thanks
Attached Files
File Type: zip USB_MODEM_VISTA64.zip (78.3 KB, 8 views) Email Attachment
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Old 09/16/2011, 02:00 PM   #606 (permalink)
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wholly cow. Simple and awesome. Just make sure you manually look for the drivers, and select to choose from the list.
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