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michaelmimo is offline michaelmimo
2011-01-02 , 00:49
Posts: 7 | Thanked: 2 times | Joined on Jan 2011
#1
Hello All,

I know the USB problem isn't new (I've searched a read through a lot of posts on it) but I seem to have a peculiar problem that no one has addressed. Please be patient with me as I just joined the forum.

My N900 has been working fine for almost a year and I have been careful with the USB port. But recently, the battery was flat and the device wouldn't charge anymore - either via the wall charger or USB to PC.

The phone did not drop neither is the USB port broken - at least physically (it was perfect till the battery went flat).

I charged the battery using another phone and re-inserted it to my phone. It came on and worked fine except that plugging the USB to PC wouldn't work. Both Linux and Windows desktops won't see it - not even an alert that a USB device is connected to the desktops. Also, the wall charger is not charging the phone battery.

I tried reflashing the phone (thinking it was a software error) but I get stuck at

Suitable USB device not found, waiting

Following the the procedure (While holding the u key, connect the N900 to your computer via USB. Wait until you see a dim screen on your N900 with a Nokia logo in the middle of your screen with an USB icon in the top right corner) described in the Upgrading the tablet firmware page, I successfully get the device to the flash mode, but the systems do not see it.

Please, what else can I do?
Last edited by michaelmimo; 2011-01-02 at 00:50. Reason: set email notification
 
handaxe is offline handaxe
2011-01-02 , 17:11
Posts: 1,378 | Thanked: 1,604 times | Joined on Jun 2010 @ Göteborg, Sweden
#2
Perhaps a solder crack has developed; it can be just as if the whole assembly detached.
Does
Code:
 lsusb
in a x-terminal show a usb device? You may need a repair ....
 
michaelmimo is offline michaelmimo
2011-01-03 , 04:34
Posts: 7 | Thanked: 2 times | Joined on Jan 2011
#3
Thanks handaxe.

lsusb gives

Bus 001 Device 001: ID 1d6b:0002

What does this mean?
 
michaelmimo is offline michaelmimo
2011-01-03 , 05:56
Posts: 7 | Thanked: 2 times | Joined on Jan 2011
#4
below is the output of lsb -v



Code:
Bus 001 Device 001: ID 1d6b:0002  
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0 Unused
  bDeviceProtocol         0 Full speed hub
  bMaxPacketSize0        64
  idVendor           0x1d6b 
  idProduct          0x0002 
  bcdDevice            2.06
  iManufacturer           3 Linux 2.6.28-omap1 musb-hcd
  iProduct                2 MUSB HDRC host driver
  iSerial                 1 musb_hdrc
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           25
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 Unused
      bInterfaceProtocol      0 Full speed hub
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0004  1x 4 bytes
        bInterval              12
Hub Descriptor:
  bLength               9
  bDescriptorType      41
  nNbrPorts             1
  wHubCharacteristic 0x0011
    Per-port power switching
    No overcurrent protection
  bPwrOn2PwrGood        5 * 2 milli seconds
  bHubContrCurrent      0 milli Ampere
  DeviceRemovable    0x02
  PortPwrCtrlMask    0xff
 Hub Port Status:
   Port 1: 0000.0100 power
Device Status:     0x0003
  Self Powered
  Remote Wakeup Enabled

I don't quite understand it but can you check it up if there's anything out of place?

thanks, again.
 
Opa is offline Opa
2011-01-03 , 10:47
Posts: 18 | Thanked: 2 times | Joined on Jan 2010 @ Finland
#5
Hi,

I just had the same problem with my N900. I took it to Nokia Care and they send it to get fixed. In two weeks I got message the phone is ready to pick up. They gave me new device instead of fixing the old one. I hope this helps.

Olli
 
michaelmimo is offline michaelmimo
2011-01-03 , 11:00
Posts: 7 | Thanked: 2 times | Joined on Jan 2011
#6
Thanks Opa.

I guess I have to take mine to Nokia Care too. Problem is I bought it in US and I am currently in Nigeria. I hope the warranty extends to another country.

Anyway, thanks.
 
handaxe is offline handaxe
2011-01-03 , 22:04
Posts: 1,378 | Thanked: 1,604 times | Joined on Jun 2010 @ Göteborg, Sweden
#7
Sorry for delay - the output of "lsusb" simply means your usb sub-system is present and as far as the OS is concerned, functional. I think it tends to point to a hardware problem as I mentioned: cracked solder /connection. How long is your warranty.... good luck to you...
 
michaelmimo is offline michaelmimo
2011-01-03 , 23:37
Posts: 7 | Thanked: 2 times | Joined on Jan 2011
#8
Okay. Nokia Care it is then.

My warranty is one year, I think, and it expires this January. Will take it there ASAP.

Thanks for your assistance.
 
Opa is offline Opa
2011-01-04 , 13:03
Posts: 18 | Thanked: 2 times | Joined on Jan 2010 @ Finland
#9
My phone was 13 months old and they didn't even ask when it was bought. There shouldn't be any problem with waranty.
 
move2leeds is offline move2leeds
2011-01-04 , 22:57
Posts: 1 | Thanked: 0 times | Joined on Jan 2011
#10
I too have the same problem the phone is less than 1 year Just stop charging but didnt notice as while battery was full still workin until i noticed the day it stopped charging or USB linking to PC i had no internet Connection.

I took back to carphone warehouse as thats were i purchased explained i read it was a firm ware problem but because i was now unable to charge my battery which was flat i was unable to switch on at all. The took in for repair under warrenty but contacted me 4 days later ( ON CHRISTAMS DAY!!!) to say it was water damage......which it wasnt......and the the warrenty is invalid!ARGHHHHH i spoke with NOKIA who told me to send to them....but im not very happy......
 
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