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GPS time
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boowoo



Joined: 12 Jun 2013
Posts: 502
Location: France

PostPosted: Sun Jun 04, 2017 2:40 pm    Post subject: GPS time Reply with quote

Hello,

until now, on my different previous phones i had no problem with time display on map screen or CMS (identic for GPS time or phone time)

Since i have Blackview BV6000 (nougat 7) the time display in Trekbuddy is one hour wrong (ex: 15h00 in place of 16h00)
My location phone settings are OK ...

I suppose problem come from this chinese phone itself (not sure)

Any idea to fix it ?
Thanks
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Ranger



Joined: 12 Dec 2006
Posts: 6007

PostPosted: Mon Jun 05, 2017 9:56 pm    Post subject: Reply with quote

One hour less ?
Seems like difference between UTC and phone time zone ...
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boowoo



Joined: 12 Jun 2013
Posts: 502
Location: France

PostPosted: Tue Jun 06, 2017 4:11 am    Post subject: Reply with quote

Thanks Ranger,
yes, one hour less.
I think problem come from the new ROM phone. I just see that bug is related on Blackview forum ...
Waiting for Blackview BV6000 OTA update and i'll report the result ...
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kruch
Site Admin


Joined: 02 Jul 2006
Posts: 5654

PostPosted: Tue Jun 06, 2017 8:27 am    Post subject: Reply with quote

Was it ok in winter? Could be related to Daylight Saving Time. What do you see in Info->Details->TimeZone?
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boowoo



Joined: 12 Jun 2013
Posts: 502
Location: France

PostPosted: Tue Jun 06, 2017 9:48 am    Post subject: Reply with quote

In time zone :
Europe/Paris ; true ; 3600000
I don't remember in winter because i used an other phone outdoor at this moment ...
I don't have this problem with my old xCover2 ...
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kruch
Site Admin


Joined: 02 Jul 2006
Posts: 5654

PostPosted: Tue Jun 06, 2017 11:37 am    Post subject: Reply with quote

Seems correct... true = uses daylight savings, and 3600000 is 1h standard time offset to UTC. Should make +2 hours in total...
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boowoo



Joined: 12 Jun 2013
Posts: 502
Location: France

PostPosted: Tue Jun 06, 2017 11:45 am    Post subject: Reply with quote

Seems problem come from bug in update ROM of the phone ...
I'll investigate this way with Blackview team and report the result when solved !
Thanks Kruch
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kruch
Site Admin


Joined: 02 Jul 2006
Posts: 5654

PostPosted: Tue Jun 06, 2017 11:57 am    Post subject: Reply with quote

Found it on BV forum Smile

In GPX tracklog, timestamp is in UTC, is it wrong by 1h?
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boowoo



Joined: 12 Jun 2013
Posts: 502
Location: France

PostPosted: Tue Jun 06, 2017 2:46 pm    Post subject: Reply with quote

No, three hour less,
What it mean for you ? Phone ROM problem ?
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kruch
Site Admin


Joined: 02 Jul 2006
Posts: 5654

PostPosted: Tue Jun 06, 2017 6:41 pm    Post subject: Reply with quote

Sorry I meant 1 hour less than UTC. Correct GPS time now in Europe/Paris zone should be 2 hours less than wall/clock time (1hour zone offset + 1 hour daylight saving).

I guess TB could use timestamp from raw NMEA where it is should correct. There is already similar workaround that overrides fix info provided by Android with raw info from NMEA. Can you make show NMEA log to check what is in it?
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boowoo



Joined: 12 Jun 2013
Posts: 502
Location: France

PostPosted: Tue Jun 06, 2017 7:31 pm    Post subject: Reply with quote

I have weird behavior ...
I'm not able to log a valid nmea file ; TB record and create nmea file but file is 0 oct (emty) so i can't check it. Confused
I have to tell you also that GPS time is wrong also with other GPS apps like GPS status and GPS test plus ... It's not a specific problem with TB !



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boowoo



Joined: 12 Jun 2013
Posts: 502
Location: France

PostPosted: Wed Jun 07, 2017 12:12 pm    Post subject: Reply with quote

Blackview team confirm now that problem "GPS time wrong" come from their last nougat version : they 'll try to fix it later (i can wait ... and see ...)

But i don't know why i'm not able to record nmea track ...? On my phone, in engineer mode i can see on built in test that nmea is shown and active !
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kruch
Site Admin


Joined: 02 Jul 2006
Posts: 5654

PostPosted: Thu Jun 08, 2017 2:51 pm    Post subject: Reply with quote

Access to raw NMEA is optional in Android. Apps can see all, only some or no NMEA sentences. You seem to have bad luck with BV phone.
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boowoo



Joined: 12 Jun 2013
Posts: 502
Location: France

PostPosted: Thu Jun 08, 2017 8:31 pm    Post subject: Reply with quote

Blackview Bv6000 is good phone ... on paper !
In reality, it make you better for using screwdriver or flashing various ROM ... Wink
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boowoo



Joined: 12 Jun 2013
Posts: 502
Location: France

PostPosted: Tue Sep 05, 2017 9:56 am    Post subject: Reply with quote

I come back with my Blackview GPS time problem ...
Is there any way for Trekbuddy CMS to show phone time instead GPS time (it could be alternative for BV6000 bug)
Thanks
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