Re: BUFFALO WLI-U2-KG54-AI USB adaptor stopped being 'recognized'

Thanks Jeff,

I do have the laptop's service manual from Dell, and it doesn't say anything
about the USB ports as such, but it is clear from the way the strip down is
sequenced that these would be one of the last things to be uncovered - and I
think I'd be quite likely to break something before I got that far!

Meanwhile, after an afternoon of use on the pc, I plugged the adaptor into
the laptop again and was surprised to see both the Buffalo Wireless LAN
Adaptor AND the associated Buffalo Miniport Package Scheduler, appear in
device manager. The former soon dropped out to its yellow triangle state,
with the 'device cannot start code 10' message. On a whim, I put this into
google and checked some of the threads to come up with this one:

http://www.devhardware.com/forums/storage-devices-80/this-device-cannot-start-code-10t-28266.html

where quite a number of contributors do seem to be of the opinion that there
was a problem with older boards not being able to cope with the power
requirements of the later USB devices. This is getting me increasingly
confident that this really must be the cause, and I suspect that your
original idea of obtaining a USB2 card may be the way forward. One thing to
clear up: will the laptop be able to deliver power to the USB2 card any
better than it could to the old USB2 ports; and if not would a wireless
adaptor CARD be likely to fare any better than the USB adaptor has?

Kind regards,

S

"Jeff Liebermann" <jeffl@xxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:ffg0v214253vhjn2kp9qcicjg138o5e9cv@xxxxxxxxxx
"spamlet" <spam.morespam@xxxxxxxxxxxxxxx> hath wroth:

I am wondering (amongst other things) if there is a bad connection
somewhere
on the laptop's USB port hardware that is stopping it from being able to
deliver enough power to 'start' the wireless adaptor, but is still capable
of delivering sufficient to be able to run flash drives.

I don't think that's happening. I've seen broken connectors and blown
fuses on USB devices. The usual result is an all or nothing affair.
It either works, or it doesn't. There's too much data negotiation and
error checking going on for anything to partially fail in the manner
you're experiencing.

(I have had a look at opening up the laptop to get at the port assembly
and
check its contacts, but it seems to be very difficult to get at, requiring
just about every other component to be removed first.)

Dell Inspiron 2600 as I recall. It's not listed here:
<http://repair4laptop.org/disassembly_dell.html>
You should be able to find disassembly instructions in the docs on the
Dell web pile. Bug me if you can't find them. I don't think you'll
be able to see the connections to the main PCB as many such USB
connectors are surface soldered. The better ones use plated through
holes in the PCB. With these, the leads are under the connector and
difficult to see.

There are also dedicated USB test tools and software avaialable. I
haven't used any. Search Google for "USB tester".


--
Jeff Liebermann jeffl@xxxxxxxxxxxxxxxxxxxxxx
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558


.

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