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posted 2014-01-14 19:27:22 +0200

Not really an answer (yet), but I think I've nailed it down to timed.

My assumption is that some cell towers give invalid time information which confuses timed so much that it triggers some panic reaction (maybe [I'm just making this up, but it sounds plausible] something like "oh! phone ran for 300 years, battery must be empty, shut down quick!"). 3G cell towers seem to be better in this way, so mostly only see this in conjunction with a 2G connection.

I found the shutdowns to stop when I disabled "automatic updates" in Settings -> Date & Time.

Not really an answer (yet), but I think I've nailed it down to timed.

My assumption is that some cell towers give invalid time information which confuses timed so much that it triggers some panic reaction (maybe [I'm just making this up, but it sounds plausible] something like "oh! phone ran for 300 years, battery must be empty, shut down quick!"). 3G cell towers seem to be better in this way, so we mostly only see this in conjunction with a 2G connection.

I found the shutdowns to stop when I disabled "automatic updates" in Settings -> Date & Time.

Not really an answer (yet), but I think I've nailed it down to timed.

My assumption is that some cell towers give invalid time information which confuses timed so much that it triggers some panic reaction (maybe [I'm just making this up, but it sounds plausible] something like "oh! phone ran for 300 years, battery must be empty, shut down quick!"). 3G cell towers seem to be better in this way, so we mostly only see this in conjunction with a 2G connection.

I found the shutdowns to stop when I disabled "automatic updates" in Settings -> Date & Time.

EDIT: This did not turn out to prevent the shutdowns. Let's collect and compare some other facts to see if we can find a common pattern.

Yesterday (when I did not have the shutdowns while in the evil area), the last pulling of battery was less than 24h ago. Today (when it did shutdown again), the last pulling of battery was ca. 48h ago. Yesterday battery level was above 70%, today it was between 60% and 70%.

Not really an answer (yet), but I think I've nailed it down to timed.

My assumption is that some cell towers give invalid time information which confuses timed so much that it triggers some panic reaction (maybe [I'm just making this up, but it sounds plausible] something like "oh! phone ran for 300 years, battery must be empty, shut down quick!"). 3G cell towers seem to be better in this way, so we mostly only see this in conjunction with a 2G connection.

I found the shutdowns to stop when I disabled "automatic updates" in Settings -> Date & Time.

EDIT: This did not turn out to prevent the shutdowns. Let's collect and compare some other facts to see if we can find a common pattern.

Yesterday (when I did not have the shutdowns while in the evil area), the last pulling of battery was less than 24h ago. Today (when it did shutdown again), the last pulling of battery was ca. 48h ago. Yesterday battery level was above 70%, today it was between 60% and 70%.

EDIT (a few days later): Every time I removed the battery for some seconds from the device less than 24h ago, the phone got stable through the evil area for me so far. Could this be related? I'm keeping an eye on the behavior with pulling battery an without.