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I purchased the N9 64Gb some months ago - and updated it with the latest 1.3 release.
After some usage - I started to notice that sometimes (once a day or once every second day) - the N9 ends up in some sort of mobile network deadlock.
Error description: When in deadlock - when trying to make calls - phone reports network error. When trying to browse the internet - no connection. If i call to my N9 - from another phone, the call do not go through.
Extra info: The N9 displays one bar of network connection, the icon for 3G is sometimes on.
If im connected to WLAN - I can browse the internet, else not.
If I reboot the N9, it will operate as normal again.
There is no warning or indication shown before it goes into the deadlock - of not being connected to the mobile network.
Idea's from an old member of the Low Level Yoda team in Copenhagen: The config flag that invoke a cell reconnect routine - after the phone have been in a network situation of no 3G or 2G basestation connect options, could have been "forgotten" to be raised in one of the the states of the "going out of coverage of a basestation" routine.
I hope that there is a solution - since the error leaves the end user (me) in an unfortunate situation of beliving to be online while its not the case. Its not acceptable at my workplace - that im often (randomly) not reachable by mobile phone.