GPS Defect

[Sodiac]

I've recently bought a used Diamond and I've never had the GPS working. I've tested it with Tomtom 7 and the HTC GPS Tool but it will not find any satellites. Calling the HTC Service helpdesk they told me there are probably no satellites above this part of my country. Eventually I got through to them and they accepted my phone for repairs.

Now then, wednesday a week ago UPS came to get my phone and brought it to Eurotwice in Belgium for repairs. So I was pretty excited that my phone was getting repaired. Yesterday however my phone was returned and when I tested it, there still was no satellite discovery at all.

On the repair form it says the failure was: GPS defect. So you would think if they acknowledge that it is broken, they'd fix it. Now on the form it says they charged me for three things (which all were free of charge though):
- Sub-Assy to 82H,GENERIC,Navi pre-assy w/ keycap
- Administration, analysis, repair, test/transport
- Cable,MURATA,MXHP34HP0590TB,PL

Is there anyone out there that knows what they actually did to repair my GPS Defect, and when I'm going to call them again on monday I can best tell them?

My guess is they replaces the touchwheel, hence there was a new tape and protector on it.. but what the cable means..

Edit:
Looking in the service manual I now know what parts they replaced:
http://upload.lhurgoyf.net/gal/Soma/keycap.jpg
http://upload.lhurgoyf.net/gal/Soma/gpscable.jpg

[NotATreoFan]

The Diamond/Touch Pro are known for horrible GPS performance. Does GPS Test find satellites but never actually connect?

Some very clever minds here on XDA were able to resolve this issue on the Touch Pro by using the GPS driver DLL files from the Blackstone. The downside? The files need to be cooked into a ROM, a CAB install doesn't work. Also, the ROM needs to be based on a 20xxx or higher ROM. The Diamond originally shipped with a 199xx ROM.

If your Diamond has HardSPL on it, check out the various GSM Diamond ROMs, find one with the updated drivers, and flash it. Your GPS should work just as good as the TyTN II.

[Sodiac]

The Diamond/Touch Pro are known for horrible GPS performance. Does GPS Test find satellites but never actually connect?

Some very clever minds here on XDA were able to resolve this issue on the Touch Pro by using the GPS driver DLL files from the Blackstone. The downside? The files need to be cooked into a ROM, a CAB install doesn't work. Also, the ROM needs to be based on a 20xxx or higher ROM. The Diamond originally shipped with a 199xx ROM.

If your Diamond has HardSPL on it, check out the various GSM Diamond ROMs, find one with the updated drivers, and flash it. Your GPS should work just as good as the TyTN II.


No unfortunately it doesn't actually find any satellite at all, so it doens't even have something to connect to..

Should I then still try flashing with new ROMs as I don't have HardSPL on it now, seeing they flashed it back to factory standards.

[band27]

The Diamond/Touch Pro are known for horrible GPS performance. Does GPS Test find satellites but never actually connect?

Some very clever minds here on XDA were able to resolve this issue on the Touch Pro by using the GPS driver DLL files from the Blackstone. The downside? The files need to be cooked into a ROM, a CAB install doesn't work. Also, the ROM needs to be based on a 20xxx or higher ROM. The Diamond originally shipped with a 199xx ROM.

If your Diamond has HardSPL on it, check out the various GSM Diamond ROMs, find one with the updated drivers, and flash it. Your GPS should work just as good as the TyTN II.
I've had my Diamond for a couple of days now I can safely say that, reception wise, it has been the best HTC phone, compared to the Trinity & the Cruise I have ever used. I would have never thought these phones were plagued as GPS reception misfits. Huh.... reception is great under bridges and the lag is so minimal that its silly to even talk about it. Well at least mine is.

[Sodiac]

I've been testing my GPS some more with the HTC GPS tool and you can log the messages. Now I was wondering if anyone knows anything about these and if they can see my problem in them. You never know:

This is what gets repeated time after time and it never changes:

$PSTIS,*61
$GPGGA,,,,,,0,,,,,,,,*66
$GPVTG,,T,,M,,N,,K,N*2C
$GPRMC,,V,,,,,,,,,,N*53
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPGGA,,,,,,0,,,,,,,,*66
$GPVTG,,T,,M,,N,,K,N*2C
$GPRMC,,V,,,,,,,,,,N*53
$GPGSA,A,1,,,,,,,,,,,,,,,*1E

[dannyoneill]

Ensure A-GPS is disabled.

[knobbyhtccruise]

Why ? a - gps is good innit ...

[Sodiac]

No apparently it's not all that great. I've read everywhere on these forums to have it disabled which of course I did before posting here.

[schmiko]

I have also problems to get a gps signal on my X1.

The HTC-GPS-Tool and also my offroad navigation software Glopus shows only this:

$PSTIS,*61
$GPGGA,,,,,,0,,,,,,,,*66
$GPVTG,,T,,M,,N,,K,N*2C
$GPRMC,,V,,,,,,,,,,N*53
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPGGA,,,,,,0,,,,,,,,*66
$GPVTG,,T,,M,,N,,K,N*2C
$GPRMC,,V,,,,,,,,,,N*53
$GPGSA,A,1,,,,,,,,,,,,,,,*1E

The X1 gps works fine since yesterday. I have done a hardware reset and tested the gps again with the same result. Could I do everything else or is it neccessary to repair the X1?

[garymeg]

I've had my Diamond for a couple of days now I can safely say that, reception wise, it has been the best HTC phone, compared to the Trinity & the Cruise I have ever used. I would have never thought these phones were plagued as GPS reception misfits. Huh.... reception is great under bridges and the lag is so minimal that its silly to even talk about it. Well at least mine is.

Here, Here My diamond is the best GPS Reciver i have had, It locks onto sats in less than 30secs with a warm start, and about 1m30sec from a cold start (after hard reset) lot better than my Artemis it takes about 5mins from a warm start and about 20mins from cold start

[band27]

Ensure A-GPS is disabled.

Absolutely make sure this is disabled. Prior to this bit of knowledge, the signals would lock and unlock in 2 sec intervals. After disabling this misfit feature, everything was solid again.

And yes, there are tweaks built into some roms that chiefs are beginning to cook in to improve accuracy and dependability.. Exa

Example ROM BY: carburano
http://forum.xda-developers.com/showthread.php?t=469852

Also the choice of radio determines how quick one gets the signal. I toggle between: 1.08.25.20 & 1.09.25.23