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maemo.org - Talk (https://talk.maemo.org/index.php)
-   Nokia N900 (https://talk.maemo.org/forumdisplay.php?f=44)
-   -   N900 Microphone / Mic Issues: Dead on Arrival (DOA), Not Working, Intermittent Failures (https://talk.maemo.org/showthread.php?t=35075)

pwannell 2009-11-25 19:47
Re: N900 no mic audio
 
Quote:
Originally Posted by maemoexperts (Post 392120)

and finally for product batch comparison, the serial number :
Code:
356938030154760
Brb, need coffee .........
Looks like mine was built before yours mate, mine is;
Code:
2970
I shall know if mines faulty prob on Friday. :-(

tanekray 2009-11-25 19:49
Re: N900 no mic audio
 
Quote:
Originally Posted by jjx (Post 392160)
That's the opposite of what my first Nokia phone's manual said (also using an Li-ion battery). It advised fully charging and discharging for a couple of cycles at the beginning.

Have the battery designs changed to reverse this advice completely?

Also: You said if the battery is fully discharged, it will be impossible to charge it because the N900 cannot boot into charging mode. Where does "accidental discharge-till-it-turns-off" fit into this? Will that brick the device, or that an incomplete discharge which turns it off by hitting a threshold?
I am also confused over this :confused: I thought occasional total discharges were good, if not recommended in the first few weeks.

edit :soz just realised this is the wrong thread for this.

Bundyo 2009-11-25 19:55
Re: N900 no mic audio
 
Are you guys sure about this discharge thing? Mine has shut down on several occasions because of discharged battery but I never had any problems charging it. I know though that charging from the data cable sometimes doesn't trigger because it is actually software controlled. However the dumb power socket charger should charge like a champ.

maemoexperts 2009-11-25 19:59
Re: N900 no mic audio
 
As requested.

Code:
~ $ cat /proc/asound/devices
 0: [ 0]  : control
 16: [ 0- 0]: digital audio playback
 17: [ 0- 1]: digital audio playback
 24: [ 0- 0]: digital audio capture
 25: [ 0- 1]: digital audio capture
 33:        : timer
~ $
Same as the previous quoted output.

MrGrim 2009-11-25 20:01
Re: N900 no mic audio
 
I'm pretty sure the device shuts down with something like 5% charge so it has some to spare to keep settings without eating into the internal battery. So if you don't try to hard to discharge it, you should be fine
Now can we get back to the subject? I see the serial numbers are kinda wide apart, if it's a manufacturing problem it's most likely intermittent

mikec 2009-11-25 20:13
Re: N900 no mic audio
 
Quote:
Originally Posted by maemoexperts (Post 392200)
As requested.

Code:
~ $ cat /proc/asound/devices
 0: [ 0]  : control
 16: [ 0- 0]: digital audio playback
 17: [ 0- 1]: digital audio playback
 24: [ 0- 0]: digital audio capture
 25: [ 0- 1]: digital audio capture
 33:        : timer
~ $
Same as the previous quoted output.
looks like all the software and sound hardware is coming up fine.
and when you run alsamixer do you see the mixer for the audio capture? if you do check that the mixer is turned all the way up.

and then try an audio capture using :arecord

maemojedi 2009-11-25 20:16
Re: N900 no mic audio
 
spoke to my girlfriend and she said the audio was crisp!

I didn't tell her I had the phone but she noticed the difference right away so iono

dnastase 2009-11-25 20:18
Re: N900 no mic audio
 
Quote:
Originally Posted by kwotski (Post 392041)
To see the audio driver, couldn't you just do:

lsmod | grep snd

and

cat /proc/asound/cards

?
I already did that, it's not that easy :confused:

Nokia-N900-42-11:/sys/devices/platform# lsmod | egrep -i "snd|aud|sound"
Nokia-N900-42-11:/sys/devices/platform#

Nokia-N900-42-11:/sys/devices/platform# cat /proc/asound/devices
0: [ 0] : control
16: [ 0- 0]: digital audio playback
17: [ 0- 1]: digital audio playback
24: [ 0- 0]: digital audio capture
25: [ 0- 1]: digital audio capture
33: : timer

nuknuk 2009-11-25 20:18
Re: N900 no mic audio
 
This is way above me lads is it fixable or do i send back for a replacement
p.s i spoke to nokia tech guy today and he said i was the first person to call with a problem with the n900 lucky me anyway he is going to call me back tomorow he had a n900 in front of him and it to was mic not working anyway thanks again.

Venomrush 2009-11-25 20:18
Re: N900 no mic audio
 
Quote:
Originally Posted by MrGrim (Post 392205)
Now can we get back to the subject? I see the serial numbers are kinda wide apart, if it's a manufacturing problem it's most likely intermittent
They are not wide apart if you look closely.
Other UK users receiving theirs assuming from the same batch because they were all on the same flight from Germany, did not have the issue.

The main difference was the others did not charge their N900s before turning it on for the first time.

Like someone mentioned before there might be static from the phone. I think the hardware got fried?


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