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misiak	2015-07-05 , 17:38
Posts: 805 \| Thanked: 1,605 times \| Joined on Feb 2010 @ Gdynia, Poland	#8

Originally Posted by Acurus_

Thanks for answering. "Autodisconnect" is not installed and has never been installed.

Same here.

Originally Posted by Acurus_

Short update: I put in a friend's SIM-card (it is not easy,to find somebody with a normal SIM-card - everybody uses micro cards). With this card, my N900 works fine. Possibly my N900 stopped liking my Vodafone card

Originally Posted by Acurus_

Funny update: The test SIM-card was from "Telekom" and this one works fine. Now if put back my Vodafone SIM-card. Now: It works.

I've also done some tests like that and it works with cards from other networks, but doesn't work with cards from my network (Play, mobile network in Poland). Sometimes I get similar results as you - it works fine for some time (like 2-3 times out of 50) and then fails again... I've ruled out battery problems (can happen or not happen with either fully charged new battery or as well as almost dead battery with <10% of charge) and few other issues (I made a backup with backupmenu, reflashed -> same issue, then restored backup), so far I suspect maybe something my operator's infrastructure might be using (maybe different provider of "their-side" devices that don't talk well with N900's modem?), but this is a wild guess (however I need to check if maybe these problems are related also to my location - if I would be 100% sure that these 2-3/50 successful trials all happened near the same antenna tower, I would only have to also know if that tower is anyhow special - e.g. uses older equipment or something)... I have no idea however and, as I stated in my previous post, I switch to 2G whenever I have to use mobile internet reliably - I gave up on it and don't want to get angry on my N900 again

EDIT

Originally Posted by peterleinchen

Oh really?
That does not make sense at all (but what makes sense in SW related quirks nowadaus? ).

I guess the full power cycle (needed to get access to the SIM) did the trick.
I had that once when the FM transmitter did not want to work. I tried everything (killing, restartong, rebooting, ...) but to no avail. Then I thought: hey, the only thing you did not try was to pull the battery. After that it worked flawlessly (up to now)!?

So misiak, try that
power down
remove battery
wait at least 10 (better 30) seconds
to be on the safe side, push power button for 3 seconds
insert battery
boot and try

I've also tried that, not changed anything in my case, but thank you for suggesting this.

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