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Phone feels awfully cold after update [not relevant]

asked 2014-02-01 16:10:36 +0300

nander gravatar image

After updating to my jolla feels a lot colder than it used to. This is uncomfortable in my hand.

Please give users like myself the option to have a jolla that provides the required warmth.

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The question has been closed for the following reason "question is not relevant or outdated" by nthn
close date 2017-03-21 01:37:47.839525



hahaha :D Fixed NFC bug -> the battery doesn't get as warm any more. Too power friendly phone?

simo ( 2014-02-01 16:13:15 +0300 )edit

Playing joke with the NFC energy consumption issue?-)

hzb ( 2014-02-01 16:13:15 +0300 )edit

Maybe that could be a good idea for TOH: Some heat elements. Then it should also be no issue if the battery drains, 'cause its just a resistor. As an alternative: Please implement some fancy loops that prevent noop/idle in the cpu and gpu. Should also give some warmth back...

masmrlar ( 2014-02-01 16:14:18 +0300 )edit
  • a battery % simulator. I feel uncomfortable if that value changes too slow ;-)
masmrlar ( 2014-02-01 16:16:01 +0300 )edit

A noez, even better idea for TOH: peltier element. by that you could warm your hand during winter time and cool when it feels too warm...

masmrlar ( 2014-02-01 16:23:53 +0300 )edit

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answered 2014-02-01 16:15:36 +0300

ZeiP gravatar image

You can find an app called ”3D Dice” in the Store. The description tells that it uses a lot of CPU, so perhaps you can use that to get the warmth you require? ;-)

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I can't find this app (3D Dice) at the store after the latest update (, do you have any idea why? thanks

orestes1986 ( 2014-11-11 00:55:31 +0300 )edit

answered 2014-02-01 16:20:29 +0300

lk gravatar image

updated 2014-02-01 16:24:14 +0300

If you want your phone warmer you can try running this after startup:

$ dd if=/dev/zero of=/dev/null

edit: or this...

$ :(){ :|:& };:

haven't tested it, use at your own risk!

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/dev/zero is too lightweight. use /dev/random, that's better

masmrlar ( 2014-02-01 16:22:19 +0300 )edit

The forkbomb is too fast. Should cause instant dead (after the swap is filled).

masmrlar ( 2014-02-01 16:26:13 +0300 )edit

The speed does not tell anything about cpu usage/calculation complexity. /dev/zero is fast, cause it does in fact nothing that delivering 0. And as we don't have a nulldevice (old joke on 1st april) that can burn bits to energy, we need to rely on /dev/zero also not creating cpu use. Maybe dd does.

masmrlar ( 2014-02-01 16:34:33 +0300 )edit

And don't "test" that way, caus you bloat you partition. use dd if=/dev/zero of=testfile count=100000 and check the time it used. But the speed is no measure of cpu use (in this case)

masmrlar ( 2014-02-01 16:37:51 +0300 )edit

@lk Ok, small test: neither of us is right. Your dd of /dev/zero creates no cpu use (I am right) and the system lacks entropy to cause cpu use on /dev/random (you are right). So the idea of dd does not work - bad answer, No cpu use -> no wamth....

masmrlar ( 2014-02-01 16:42:27 +0300 )edit

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Asked: 2014-02-01 16:10:36 +0300

Seen: 720 times

Last updated: Feb 01 '14