n900 flashing keyboard
 

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

Re: n900 flashing keyboard
 

I've seen these issues, further details and a possible fix available here

Re: n900 flashing keyboard
 

Errr why did you turn on R&D mode?
flasher-3.5 --disable-rd-mode

Re: n900 flashing keyboard
 

seering comes from power source, aka "charger"

Re: n900 flashing keyboard
 

seering noise from charger?!

Re: n900 flashing keyboard
 

nope not the charger, from my n900.. i'll check and see if disabling R&D mode works, can't remember enabling it though.

Re: n900 flashing keyboard
 

lol.. great now it's kicking and screaming!

Re: n900 flashing keyboard
 

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?

Re: n900 flashing keyboard
 

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?

Re: n900 flashing keyboard
 

"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.