ubuntu-phone team mailing list archive

[Ricardo Salveti de Araujo <ricardo.salveti@xxxxxxxxxxxxx>]

On Tue, May 26, 2015 at 5:06 PM, Matthias Apitz <guru@xxxxxxxxxxx> wrote:
> El día Monday, May 25, 2015 a las 08:28:05PM -0300, Ricardo Salveti de Araujo escribió:
>
>> > The syslog of this time can be found here: http://www.unixarea.de/syslog.May25.txt
>>
>> Your syslog looks fine, and your behaviour is indeed super weird.
>>
>> Were you able to still turn it on after reproducing such issue and
>> powering it off? Wonder if the battery status would still be the same
>> after a reboot.
>>
>> There is nothing special at our userspace, it's basically getting the
>> battery data from the kernel directly. So it's either a kernel bug, or
>> a battery firmware bug, hard to tell from now (I was only able to
>> reproduce this bug once, and it seems people are also having similar
>> issues with the Android version of it
>> https://www.youtube.com/watch?v=YAmdswKehQ4 ).
>
> Hello Ricardo,
>
> I contacted BQ.com with this problem and this is what they recommend:
>
>> Dear Mr. Apitz,
>>   Thank you for contacting BQ Technical Support.
>>
>> It sounds like you are experiencing some issues with your battery indicator,
>> thus perceiving a low battery autonomy. These issues may be solved by
>> calibrating your battery. In order to calibrate the battery, please, use the
>> device until the battery has drained to the point of shutting down
>> automatically. Basically, use it until it turns itself off.  Ignore any low
>> battery alerts that may appear.  Then, recharge the battery without any
>> interruptions until it is fully charged to 100%. Verify  the battery indicates
>> a 100% both turned on and off.
>> We let you know the battery indicator is controlled via software and we are
>> currently working on a new update that improves this indicator.
>>
>> After three or four calibrations following this procedure, you should be able
>> to notice improvements. In case the behaviour is still reproducing after the
>> calibration and in order to properly diagnose this incidence, please, fully
>> charge the device, set the display brightness to a manual level and make a
>> normal daily use of it until the battery is 5%. Please, send us a screenshot
>> of System Settings> Battery and System Settings> Battery> Display brightness
>> by simultaneously pressing the Volume + and Volume - buttons. Also, please,
>> let us know the behaviour of the indicator when rebooting. Does it still show
>> the same battery percentage?
>
> I do not fully understand this procedure of calibrating. This is what
> I always did until now: the battery drained and I recharged it.
>
> Any helping hand who can explain what they want me to do?

I think it's just doing a few full discharge -> charge (100%) and see
if you're able to reproduce this issue again.

Cheers,
-- 
Ricardo Salveti de Araujo