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Unresponsive and rapid blue led after critical error in app registery

asked 2015-12-07 14:50:06 +0300

What happened:
I was browsing TJC using WebPirate. I wanted to try a command, so opened settings. When I clicked "Developer mode" the screen went black and the UI restarted (no led). Lock code input freezed and a notification came up saying "critical problem in app registery". Then the screen went black, (some sort of light) blue led started blinking very rapidly and the phone became completely unresponsive. I had to take out the battery. After inserting the battery I performed a normal boot. Twitter feed was gone from the events view and weather had forgot the location. I opened Utilities and performed an app registry rebuild. Now the phone seems to work normally and Twitter feed is back, however Weather still asks for location.

I'd like to know what that led blinking meant and why my phone became unstable. Is there any other way to know my OS is in an OK state other than factory reset?

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Developer mode was on, I was going to set ssh password. Btrfs says allocation is at 30%

jollailija ( 2015-12-07 14:51:27 +0300 )edit

I get "critical problem in app registry" at least twice a month. Usually prompted by something as "stressful" as downloading a file in Browser. One thing I have learned - NEVER EVER yield to temptation and rebuild the registry through Sailfish Utilities, it will cause even more problems. Just reboot the phone and carry on.

I do not know anything about Twitter feeds as I have never used any but the loss of all weather locations and most but not always all Warehouse repositories is a normal side effect.

See also https://together.jolla.com/question/115560/weather-app-lost-all-locations/.

pichlo ( 2015-12-07 15:04:30 +0300 )edit

@pichlo Thanks. Well, that's the weather app out of the way. I haven't found out what the blue blinking means yet. I'd sure like to know.

jollailija ( 2015-12-07 19:57:24 +0300 )edit

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answered 2015-12-08 08:48:59 +0300

spiiroin gravatar image

Light-blue rapidly blinking panic pattern -> most likely it was PatternDisplaySuspendFailed i.e. something went wrong in the kernel side during display power off sequence.

I have no idea what might have caused it for you now, but earlier on cycle these were caused by things like hw accelerated graphics operations getting executed during peripheral power down.

If the blinking lasts longer than couple of seconds, it is likely that a reboot is needed to fully recover from the situation.

Note that before yanking out the battery, you could attempt shutdown via long (>5 second) power key press. Depending on how functional the system is, you should get vibration and/or led turning to red when/if the shutdown starts.

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Thanks, @spiiroin! The blinking lasted for about a minute (then I took of the battery). The device was completely unresponsive, I tried all tapping and power key patterns I I could come up with. No response of any kind to any of my attempts.

jollailija ( 2015-12-08 15:30:11 +0300 )edit
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Asked: 2015-12-07 14:50:06 +0300

Seen: 373 times

Last updated: Dec 08 '15