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Difficulty getting GPS to start on Blackberry Bold 9000

 
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dml2



Joined: 13 Jan 2014
Posts: 2

PostPosted: Mon Jan 13, 2014 9:28 pm    Post subject: Difficulty getting GPS to start on Blackberry Bold 9000 Reply with quote

I have been using TB successfully with a Blackberry Bold 9000 for several years but I often have difficulty getting the GPS to do a 'cold start'. When I press 'Start' in TB, it only starts the GPS from a 'cold start' if:

I enable Assisted GPS, which is called 'Location Aiding' in the BB GPS setup
and
I am in an area with mobile network coverage
and
I have paid for Blackberry Internet Service.

If I don't have BB Internet Service or if am in an area with no mobile network coverage, which is often the case while hiking, then when I press 'Start' in TB, the spot in the top RH corner turns blue then after about 16 seconds, it turns yellow and it cannot get a GPS fix. If I stop and start again, the GPS still doesn't start.

I have found a work-around for this which is to quit TB, then go into BB options and 'Refresh GPS'. Once the BB GPS has got its first SatFix, which may take several minutes without Assisted GPS, I can go back into TB and it will start the GPS OK. After the initial 'cold start', I can stop and start TB with no problem.

It appears that when the GPS is not assisted, TB times out waiting for the GPS to start. Is there any way to increase this time-out?

One other thing that I have found with the Bold 9000 is that sometimes even when I quit TB and do 'Refresh GPS' in BB GPS Options, it never gets a SatFix if I am in an area with no mobile network coverage. In that case I have to turn off the mobile network altogether then the GPS will start. I think this may be a 'co-siting' problem where the BB is searching for a mobile network and its transmissions are 'deafening' its GPS receiver whose antenna is close by.

The BB Bold 9000 is now 5 years old, so I am thinking of getting a different phone and keeping the BB as a dedicated GPS device. In that case, it wouldn't have BB Internet Services so it would be useful to know an easier way to get the GPS to do a 'cold start'.

Does anyone else have this problem with other models when usig non-assisted GPS?
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kruch
Site Admin


Joined: 02 Jul 2006
Posts: 5660

PostPosted: Tue Jan 14, 2014 9:28 am    Post subject: Reply with quote

Sometimes it is indeed difficult to get a fix after cold start. I've read about that Refresh GPS trick, but when testing I can wait for a long time so I just wait...

I was searching for a solution yesterday and came across a few hints that people tried to use to solve this slow fix issue (with uknown outcome). I've made some subtle changes in initialization (and elsewhere to handle reset better but that is not the case of cold start).
I'll do some quick tests tonight but cannot promise anything. Yours 9000 has OS 5+ installed, I hope?

My testing device is 9700 without SIM card, so I have assisted GPS disabled both at the system settings and TB settings.
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shen



Joined: 15 Oct 2008
Posts: 340
Location: DE

PostPosted: Sat Jan 25, 2014 12:00 pm    Post subject: Reply with quote

kruch wrote:
Sometimes it is indeed difficult to get a fix after cold start. I've read about that Refresh GPS trick, but when testing I can wait for a long time so I just wait...

I was searching for a solution yesterday and came across a few hints that people tried to use to solve this slow fix issue (with uknown outcome). I've made some subtle changes in initialization (and elsewhere to handle reset better but that is not the case of cold start).
I'll do some quick tests tonight but cannot promise anything. Yours 9000 has OS 5+ installed, I hope?

My testing device is 9700 without SIM card, so I have assisted GPS disabled both at the system settings and TB settings.


Sounds good as I have the same issues from time to time since the only thing I use my BB9700 for is geocaching with TB. So I also have no SIM installed and I often have to restart TB or even my BB9700 to get a fix.

So I'm looking forward for whatever might increase the chance of a faster fix Smile

Stefan

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