answered 2014-11-12 21:40:41 +0300

stuaxo
21 ●1 ●5

Have to wonder if it is some bad ram... sometimes when it's booting up it will take about 5 - 15 attempts at booting (getting to different places each time). Then there is a fairly good chance that opening any app will crash it at some point.

Address-space-randomisation + some bad ram somewhere could cause this, not sure how to test the hypothesis though?

Will try an eraser on the battery, have been having this bug for about 10 months, phone is incredibly unreliable.

answered 2015-01-28 09:07:47 +0300

vishal
101 ●2 ●5 ●10

ya when such things happen i used to remove battery clean battery connections and reinsert it i will be all right but again it happens after 1 r 2days again i have to do same thing

answered 2015-03-02 23:32:51 +0300

az2111
1 ●1 ●2

updated 2015-03-02 23:36:09 +0300

Hey to all,

my Jolla had a lot of shutdowns and restarts. I tried cleaning Accu-Contacts, fold a piece of paper to increase the pressure of the Accu, pulled out the micro-sd-card, made a factory reset, and many other things. Nothing helped, i even had a lot of restarts and shutdowns.

2 days ago i checked the screw of my Jolla. Some of them were loose !!!!! I tooked a screwdriver screwed the the loose screws and the screws which weren't loose i screwed a half turn more solid. (CAREFULLY!!!)

Now the restarts hopefully gone.

Best regards az2111

answered 2015-06-06 23:07:22 +0300

Uargae
1 ●1 ●1

After a few month using Jolla phone I observed sudden reboots, mainly at higher power consumption of the phone (incoming call, areas with low GSM availability, logging into WLAN, using the camera, accessing the SD-card, etc.), sometimes with infinite boot loops.

I tried the three proposals of the first post of this thread (piece of paper, rubber the contacts, etc.), however, with no success. Also sent my phone to Jolla care and received a new battery. After a few month (~3) the sudden reboots returned. I did not detect any hints for battery overheating (at the moment my phone gets really warm on the outside cover without rebooting) and the CSD-Tool said battery is in "good" shape.

While the reboots became very annoying I, started to switch to another phone as my main device. During that time I used the Jolla as a secondary device for listening to audio dramas, web surfing, etc. and let it automatically shut down at 2 or 3% and charged it up again to 100%.

After approximately 3 month - due to the very good usability of the phone ;-) - I started to use the Jolla as my main device again and observed no sudden reboots. However, during that period I started again "inbetween charging", meaning that I charged it in the night being e.g., at 30% battery power, to have a fully charged phone in the morning, or to connect it to the wire for a while to have enough power for the afternoon. After a few weeks, sudden reboots returned.

From that time on, I decided to fully discharge the pone an charge it again up to 100% every time. I'm doing this for about two month now and observed only one sudden reboot in an area with low GSM availability. I'm not much into the technical details, but it may mean that computation of battery power is disturbed by discontinuous charging in process of time. Altogether, fully discharging and charging the pone led to a very good power stability for my phone.

answered 2015-06-19 14:50:24 +0300

yanoo
742 ●15 ●25 ●30

updated 2015-06-24 16:37:33 +0300

I tried probably every described option and nothing worked to me.

Finally I decided to replace poppy red the first one TOH with default white one... and it's about a week without restart.

edit:

Nope, it didn't help. Again get the problem, Jolla after a few restarts said that battery is low, when I plug in it says battery is on 53%.

So it's probably not the issue with TOH.

answered 2015-07-22 01:19:16 +0300

ALH
343 ●6 ●8 ●11

Indeed, the trick with the eraser worked for me. A few days without reboot. :-)

PS: Don't use anything else to clean the battery contacts and even more for the contacts in the phone. It is gold covered and gold is a very soft metal. One can scratch it off quite easily and then you will have real connection problems.

answered 2015-07-23 16:28:38 +0300

garfunx
26 ●1 ●1 ●5

updated 2015-07-23 16:30:51 +0300

I read so much bullshit about this problem I think it needs to be clarified.

I also had this reboot problem. After several attempts it seems it is more likely to fail when data is enabled. Conclusion the problem comes from the GSM chip.

On most of electronic devices, when you restart it, only the CPU is reset. So you need to unplug the battery several seconds and then plug it back to do a "hardware reset" on all device components. And hop, no problem anymore.

Let's just hope this bug won't be back soon or a fix from the Jolla team.

answered 2015-07-23 23:34:29 +0300

Vamp898
303 ●6 ●8 ●15

I found one way to reproduce this defently (but this might not be the cause to this specific problem).

I have an Charger in the care with an defect charging cable. This Cable works but somehow its awesomely slow. My old Android often complained that its unloading faster than its loading.

i found out that this was due to an loose contact.

Now the interesting, as soon i moved the cable and so caused power fluctuating all other phones taken that without problem.

In that moment, the jolla, always restarts.

answered 2015-07-28 16:46:47 +0300

arie_jolla
106 ●3 ●5 ●14

I had the same problem, took out the battery, looked at where the spring of the phone's casing pushes the battery towards the contacts and saw a dent in the battery. My guess is that the spring has a very (too) short range of action and that therefore the dent causes reduced pressure on the contacts, leading to the reported reboots at increased current consumption.
That's probably why 'moving the contacts in and out for 10-15 times', or 'cleaning the contacts' seem to work.
But the best option imho is to restore the spring's action by putting a piece of paper, plastic or tape where the spring is pushing against the battery, in order to restore the pressure on the contacts to a value that it is designed for.
This clearly is a design failure imnsho.

answered 2015-08-26 09:02:36 +0300

Fledias
1 ●1

One Possible Reason for random Shut-downs of the Jolla Phone

Ok, as I had exactly the same issue, my phone Shut-down 2-3 times a day without any Reason, it seams. Than I recognised that it does that always in my Pocket with other stuff in there. ###So it seams like the issue is in my case about the power button which is pressed by different Items in my Pocket. Even so it seams pretty stupid but that was the reason in my case. So it could help to put the Jolla the other way around in to the pocket or don't put to many Items else in there.

Still this is a construction problem never before experience this issue with another phone.

But still I love my Jolla (especially the OS!;) and I use it every day!