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Posts: 17 | Thanked: 2 times | Joined on Jan 2010
#1
hi there,

since i bought my n900 whenever i have the keyboard slid open and the screen is blanked i see the keyboard LEDs flashing like mad. since a short while ago i have been hearing a high pitched seering noise coming from it aswell while it is charging. Does anyone else have this and know what it is?

thanks,
Wernher
 

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Posts: 663 | Thanked: 282 times | Joined on Nov 2009 @ London, UK
#2
I've seen these issues, further details and a possible fix available here
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#3
Errr why did you turn on R&D mode?
flasher-3.5 --disable-rd-mode
 

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#4
seering comes from power source, aka "charger"
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cashclientel's Avatar
Posts: 663 | Thanked: 282 times | Joined on Nov 2009 @ London, UK
#5
seering noise from charger?!
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Nokia are a business and have chosen a path of using the OSS community phenomenon to reduce their overheads specifically after sales support and development. Unlike Apple who do the opposite and make a killing from their Applications store.
 
Posts: 17 | Thanked: 2 times | Joined on Jan 2010
#6
nope not the charger, from my n900.. i'll check and see if disabling R&D mode works, can't remember enabling it though.
 
Posts: 17 | Thanked: 2 times | Joined on Jan 2010
#7
Originally Posted by cashclientel View Post
I've seen these issues, further details and a possible fix available here
lol.. great now it's kicking and screaming!
 
Posts: 17 | Thanked: 2 times | Joined on Jan 2010
#8
Originally Posted by MohammadAG View Post
Errr why did you turn on R&D mode?
flasher-3.5 --disable-rd-mode
yup that worked.. i believe i enabled it because i was intending on mucking around with it.. so what do the flashing keyboard LED's tell me then, that it's in R&D mode or is it feedback of some sort?
 
Posts: 17 | Thanked: 2 times | Joined on Jan 2010
#9
okay the flashing keyboard lights have stooped after disabling R&D mode, but the searing sound has not stopped.. it's almost the same kind of sound the old school flashes made when loading.. except it sounds broken ... almost like small little bubbles bubbling in water, like when you look for a puncture in a tire under water, that's exactly what it sounds like actually.. anybody else had this?
 
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Posts: 2,473 | Thanked: 12,265 times | Joined on Oct 2009 @ Jerusalem, PS/IL
#10
"N900: The keyboard backlight behind the left and right side of the keyboard flickers in response to system activity."
From http://wiki.maemo.org/R&D_mode
Not sure about the sound though, could need a repair by Nokia.
 

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