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INSTRUCTIONS FOR FLASHING FROM A PC
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1: download and install maemo_flasher-3.5
Flasher download: http://tablets-dev.nokia.com/maemo-dev-env-downloads.php


2: download and put the kernel image in the flasher directory on your PC (C:\Program Files\maemo\flasher-3.5\). Make sure you save the file with no extension ie.txt at the end. Just leave it as 'zImage-800mhz'
Kernel image download: http://www.saunalahti.fi/crailt/


3: turn off your device

4: hold the 'u' letter and plug in the usb cable. PC should detect the phone in flasher mode. You should now see a 'USB' icon in the top right of the nokia screen.

5: type this command in Maemo Flasher 3.5:
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flasher-3.5 -k <path-to-image> -f -R
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example: flasher-3.5 -k zImage-800mhz -f -R


6: your done should take 1 second

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Tip
**Flash your kernel to run this image 'zImage-800mhz' way less chance of your device overheating and causing damage. any higher and you are one crazy bastard

Caution
**Stay away from any files which end in ‘dsp’ unless you know what you are doing.
**Avoid using any kernel which runs the device at more then 900mhz unless you know what you are doing.
**better yet stay away from any overclocking unless you understand the risk of what you are doing.

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INSTRUCTIONS ADDING A DESKTOP HEAT WIDGET
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1: download and install ‘Desktop command execution widget’. I think it’s in Extras-devel


2: add the widget to your desktop


3: go to the setting of your widget by holding the screen, or tapping once in a empty space and click the box which drops down on the top right. Click on the ‘tool’ on the widget to get to the settings

4: Once in the widget set up click ‘add Cmd’

5: a box should appear with two fields. Add the following
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Titile:
Heat
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Command:
cat /sys/devices/platform/omap34xx_temp/temp1_input
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6: click ‘save’ then ‘save’ again

7: your done: D. if you want you can tweak the widget a little more in the settings.



Tip
**the desktop command widget doesnt refresh unless you scroll or click on it by default. Some users will think the temp is stuck but its not

**if you want live changes click on the settings again. untick update on scroll and press. set up an update interval in the settings ranging from 30sec to 12hours ***this might have a battery impact im not sure????? or have update on scroll, press ticked and intervals selected.



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Have you actually tested is that HEAT reading is actually correct???

cat /sys/devices/platform/omap34xx_temp/temp1_input

This ALWAYS returns a same value no matter how hot or cold your cpu is from what I see.
I would love to get others to check this also to see if this value actually changes dynamically.

Thanks for that, the problem seems to have corrected itself. Just checked then before taking the sim out. Awesome. I <3 my n900.

How much will clocking down to 125mhz improv battery life? Anyone have a general idea? Seems like it might just even out clocking it to 800.

yes i have. works fine for me. seems to refresh every minute.

If you put load on your cpu, how high does it go up to?

ye. when i first put it on it went to 40. then 35. then 30. then 25. so yes it does go down and up BUT 1 point.

the desktop command widget doesnt refresh unless you scroll or click on it by default.

if you want live changes click on the settings again. untick update on scroll and press. set up an update interval in the settings ranging from 30sec to 12hours ***this might have a battery impact im not sure?????***********

The command for the heat does not work... Im streaming music from the browser and my n900 is Pretty darn toasty but still says 25...

EDIT: Yes I AM refreshing it

Hey guys! I PMed Lehto and I asked him if I can host all of the custom kernels and he also now have access to the server and so he agreed and he will upload the custom kernels online so it would be much easier to obtain... also he has access to server so if there's an update he will easilly update the files!!

So wither today or tomorrow I will post a link here for all the people who want to download those custom kernels.. I will be putting up detailed tutorials on how to do this and if something goes wrong how to flash the N900 back to normal (this will be for the unexperienced users who wants to try this)...

And of course there's a EULA there that will warn you on how dangerous this is that you guy will have to agree in order to continue and download the kernels, this way we make sure that we OBVIOUSLY stated that this is not safe and shouldn't be dont unless you are fully aware of what you might be causing for the N900... so with all that said I am glad that lehto have agreed on this and all I can say for now is stay tuned for the link.. (this is of course to all the people who still want to try the kernels and are waiting for them)

hhmmmmmmmmmm hhmmm hhmmmmmm. any other commands someone else can think of?

I have my N900 doing the following all at the same time:
1. Playing mp3 via Symfonie with equalizer enabled. (heavy cpu)
2. Playing a xvid avi video via mplayer

This uses about 80-100% of my CPU at a constant 1ghz.

But. I left it on for about 5 mins. Still, the "temp1_input" value does not change from 31. Doesn't move.

Said this before. According to Igor (Nokia engineer), it seems the sensor readings are not easily accessible via sw.
http://www.gossamer-threads.com/list...rs/58023#58023