Is the GPS Supposed to work overseas no matter what? with or without service?

[jethro_static]

Ur just experiencing low satelite signals. The GPS chip on ur phone is not as strong as in the GPS systems. U don't have assistance from cell tower as well because ur in another country. Roaming is for calls.

[MrChainsaw]

Originally Posted by fred_dj

This is what I thought.... I traveled to south america and my GPS says seeking gps .... but no fixed sats. and it was working minutes before I left the us. My phone is on digital roaming, but it shouldnt matter right? I have a world map with tomtom nav, but no signal.... any thoughts? Thanks

Originally Posted by arparent

Its called Agps... The A is for Assisted. It uses Cell towers to orrient itself so that it can locate the satellites. Without a signal, it doesn't know which way to look.

What kind of phone/what carrier are you using because arparent's answer is right (from what I know) for CDMA carriers.

[arparent]

I stand partially corrected. It is capable of locks on its own, but it takes much longer without assistance. Many programs timeout before a lock is established.

[fred_dj]

Yeah, i really dont know.... I'm still out of the country, i left the phone for hours in the HTC GPS tool searching, but no success.... It must be somenthing related to cell towers.... Or.... I wonder, what is that IP address on the GPS settings for??? it must be somenting related to that.... and By the way... thanks for all the replies

[g2145cal]

have you done that reg tweak that is located at

HKLM/SOFTWARE/HTC/supl agps

and make sure the first 3 settings are 1, 1, 4


this allows you to be able to turn the phone radio/go into flight mode and still get a gps lock...

i thought gps was gps and it did not matter where you were at, as long as you have the available maps.

[JRider]

Originally Posted by Osteo

Search is your friend. Multiple threads discuss that our GPSr is regionally dependent based on some registry setting. No one has successfully cracked the region code from what I remember.

Guys, this is the answer. Did you miss this?

[wILLk0r3 818]

Just a crazy thought, this may work from what I'm reading. If we can somehow get packedephemeris.ee from someone elses /windows folder within the area we're traveling when using our aGPS, it should work. It sounds like a major PIA but I'm sure it would work. I think so because it downloads the satellites ephemeris data and uses that to "assist" the GPS. Once that's so, the aGPS chip will work in "stand-alone" mode, hence being able to have the radio off and still properly operate. Aside from that, I'm all out of ideas cuz I'd like to know too!

[LoneSnark]

Well, if that's the case then someone should set up an international GPS hint page where you can download the hint for your region. Or, better yet, write an app which asks you where you are, such as England, and generates a valid hint automatically.

[angel12]

also, you might have to turn off the aGPS setting using advanced config. this might help, im not 100% sure tho