maemo.org - Talk - View Single Post - N900 Microphone / Mic Issues: Dead on Arrival (DOA), Not Working, Intermittent Failures

	richardski	2009-12-17 , 10:28
	Posts: 58 \| Thanked: 63 times \| Joined on Dec 2009 @ Marlborough, Wiltshire, UK	#370

Originally Posted by Venomrush

So from the 6 posted their IMEI I've trimmed down their Serial Number, you guys might want to remove your IMEI number now.

maemoexperts
Serial Number 015476

pwannell
Serial Number 015297

nuknuk
Serial Number 015481

FC_
Serial Number 012679

douglas
Serial Number 008154

bbrindle
Serial Number 008477

FYI those want to find out the serial number,

The IMEI format is as follow (example only): 35007752-323751-3
The bit in bold is the N900's unique serial number.

First 8 digits = Type Allocation Code (device name + region etc.)
Last digit = Check Digit

---------------------------------------------------
Serial Number 015757

Arrived and powerd up on 30 Nov09
- Mic was dead on arrival.
DTMF tones can be sent from number pad
External earpiece and mic work OK
Bluetooth headset works OK
Has been fully reflashed with the Flasher - internal mic still dead.

Diasasembly video here:

http://www.engadget.com/2009/12/04/n...one-semantics/

Seems to show that, in common with other Nokia phones, mic is a module that relies on presure contact with the motherboard. Could be a problem with a poor connection at this location (resist not cleaned off properly etc) or wrong type of microphone module used.

May be some brave person will have a go at checking their mic connection

Richard

Quote & Reply |