No subject
Tue Nov 13 08:16:38 EST 2012
different read voltage than your desktop and that card is just on the edge
of that voltage being OK. So a very tiny variation in voltage due to
current load on phone may be enough to make the card present as not
installed.
Also the SD cards are highly susceptible to vibration effects. Carrying a
phone around (and having it always on vibrate!) will stress the card (I had
a zillion pics on one that was totally unrecoverable when it died :-( ).
Don't drop a microcenter SD card from a height of more than about 1 foot.
They get really grumpy. No brand of CF likes an impact from 2 feet (i.e.
knocked off the desk - grr).
Android updates: the latest update removed the ability to mount my phone as
a drive. There's a new protocol that is flaky under Linux (Google! WTF!!)
that is required to read the card on the phone when USB connected to my
laptop.
On Mon, Oct 28, 2013 at 12:13 PM, David Tomaschik
<david at systemoverlord.com>wrote:
> On Mon, Oct 28, 2013 at 7:24 AM, Neal Rhodes <neal at mnopltd.com> wrote:
>
>> **
>> Somewhat OT.
>>
>> My HTC Rezound has had a Kingston SDC4/16GB microSDHC Flash Card - 16GB,
>> Class 4, Adapter in it for about 2 years now. Worked fine.
>>
>> Last couple of months, it has occasionally decided there is no SD card.
>> Reboot doesn't help. Taking the phone apart, sliding card in and out
>> usually helps, but not always.
>>
>> Thus far, every time I've pulled it out and stuck it in the little
>> adapter carrier, and stuck that in the front of my HP running Centos (see,
>> not totally OT) it has read just fine.
>>
>> HTC has not provided much insight, they just say maybe the SD card is
>> intermittently shot, and get another Class 4 or class 6 card. That would
>> be cheap and the best answer.
>>
>> The less attractive answer is the SD contacts in the phone are going
>> south.
>>
>> Anybody got experience with an SD that is iffy in a phone, but not iffy
>> in a desktop?
>>
>> Any Vendors better than others?
>>
>>
>> Neal Rhodes
>> MNOP Ltd
>>
>>
> For something not removed often, contacts are unlikely to be your weak
> spot.
>
> It's worth noting that there are 3 modes [1] under which an SD card can be
> accessed. It's possible the controller (or contacts, though less likely)
> is bad under a single mode and that the phone and desktop use different
> modes to access the data.
>
> The "name brands" for flash media are all likely to have similar quality
> -- Kingston, PNY, SanDisk. If you care about quality, steer clear of
> Polaroid, Micro Center, etc. I'm not saying they're bad, just less
> predictable -- they're probably made with the same components as the other
> brands, but it's hard to tell as they don't make the devices themselves.
>
>
> [1] https://en.wikipedia.org/wiki/Secure_Digital#Transfer_modes
>
>
>
> --
> David Tomaschik
> OpenPGP: 0x5DEA789B
> http://systemoverlord.com
> david at systemoverlord.com
>
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://mail.ale.org/mailman/listinfo/ale
> See JOBS, ANNOUNCE and SCHOOLS lists at
> http://mail.ale.org/mailman/listinfo
>
>
--
--
James P. Kinney III
*
*Every time you stop a school, you will have to build a jail. What you gain
at one end you lose at the other. It's like feeding a dog on his own tail.
It won't fatten the dog.
- Speech 11/23/1900 Mark Twain
*
http://heretothereideas.blogspot.com/
*
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Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
<div dir=3D"ltr"><div><div><div>I'll +1 all the prior advice especially=
replace the card ASAP.<br><br></div>From an electronics perspective, the p=
hone may providing a slightly different read voltage than your desktop and =
that card is just on the edge of that voltage being OK. So a very tiny vari=
ation in voltage due to current load on phone may be enough to make the car=
d present as not installed.<br>
<br></div>Also the SD cards are highly susceptible to vibration effects. Ca=
rrying a phone around (and having it always on vibrate!) will stress the ca=
rd (I had a zillion pics on one that was totally unrecoverable when it died=
:-(=C2=A0 ). Don't drop a microcenter SD card from a height of more th=
an about 1 foot. They get really grumpy. No brand of CF likes an impact fro=
m 2 feet (i.e. knocked off the desk - grr).<br>
<br><br></div>Android updates: the latest update removed the ability to mou=
nt my phone as a drive. There's a new protocol that is flaky under Linu=
x (Google! WTF!!) that is required to read the card on the phone when USB c=
onnected to my laptop. <br>
</div><div class=3D"gmail_extra"><br><br><div class=3D"gmail_quote">On Mon,=
Oct 28, 2013 at 12:13 PM, David Tomaschik <span dir=3D"ltr"><<a href=3D=
"mailto:david at systemoverlord.com" target=3D"_blank">david at systemoverlord.co=
m</a>></span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><div dir=3D"ltr"><div class=3D"gmail_extra">=
<div class=3D"gmail_quote"><div><div class=3D"h5">On Mon, Oct 28, 2013 at 7=
:24 AM, Neal Rhodes <span dir=3D"ltr"><<a href=3D"mailto:neal at mnopltd.co=
m" target=3D"_blank">neal at mnopltd.com</a>></span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;p=
adding-left:1ex"><u></u>
=20
=20
<div>
Somewhat OT.=C2=A0 <br>
<br>
My HTC Rezound has had a Kingston SDC4/16GB microSDHC Flash Card - 16GB, Cl=
ass 4, Adapter in it for about 2 years now.=C2=A0 Worked fine.=C2=A0 <br>
<br>
Last couple of months, it has occasionally decided there is no SD card.=C2=
=A0=C2=A0 Reboot doesn't help.=C2=A0=C2=A0 Taking the phone apart, slid=
ing card in and out usually helps, but not always.=C2=A0 <br>
<br>
Thus far, every time I've pulled it out and stuck it in the little adap=
ter carrier, and stuck that in the front of my HP running Centos (see, not =
totally OT) it has read just fine. <br>
<br>
HTC has not provided much insight, they just say maybe the SD card is inter=
mittently shot, and get another Class 4 or class 6 card.=C2=A0 That would b=
e cheap and the best answer. <br>
<br>
The less attractive answer is the SD contacts in the phone are going south.=
<br>
<br>
Anybody got experience with an SD that is iffy in a phone, but not iffy in =
a desktop? <br>
<br>
Any Vendors better than others? <br><span><font color=3D"#888888">
<br>
<br>
Neal Rhodes<br>
MNOP Ltd</font></span></div>
<br></blockquote><div><br></div></div></div><div>For something not removed =
often, contacts are unlikely to be your weak spot.</div><div><br></div><div=
>It's worth noting that there are 3 modes [1] under which an SD card ca=
n be accessed. =C2=A0It's possible the controller (or contacts, though =
less likely) is bad under a single mode and that the phone and desktop use =
different modes to access the data.</div>
<div><br></div><div>The "name brands" for flash media are all lik=
ely to have similar quality -- Kingston, PNY, SanDisk. =C2=A0If you care ab=
out quality, steer clear of Polaroid, Micro Center, etc. =C2=A0I'm not =
saying they're bad, just less predictable -- they're probably made =
with the same components as the other brands, but it's hard to tell as =
they don't make the devices themselves.</div>
<div><br></div><div><br></div><div>[1] <a href=3D"https://en.wikipedia.org/=
wiki/Secure_Digital#Transfer_modes" target=3D"_blank">https://en.wikipedia.=
org/wiki/Secure_Digital#Transfer_modes</a>=C2=A0</div></div><span class=3D"=
HOEnZb"><font color=3D"#888888"><br>
<br clear=3D"all"><div><br></div>-- <br>
David Tomaschik<br>OpenPGP: 0x5DEA789B<br><a href=3D"http://systemoverlord.=
com" target=3D"_blank">http://systemoverlord.com</a><br><a href=3D"mailto:d=
avid at systemoverlord.com" target=3D"_blank">david at systemoverlord.com</a>
</font></span></div></div>
<br>_______________________________________________<br>
Ale mailing list<br>
<a href=3D"mailto:Ale at ale.org">Ale at ale.org</a><br>
<a href=3D"http://mail.ale.org/mailman/listinfo/ale" target=3D"_blank">http=
://mail.ale.org/mailman/listinfo/ale</a><br>
See JOBS, ANNOUNCE and SCHOOLS lists at<br>
<a href=3D"http://mail.ale.org/mailman/listinfo" target=3D"_blank">http://m=
ail.ale.org/mailman/listinfo</a><br>
<br></blockquote></div><br><br clear=3D"all"><br>-- <br><div dir=3D"ltr">--=
<br>James P. Kinney III<br><i><i><i><i><br></i></i></i></i>Every time you =
stop a school, you will have to build a jail. What you=20
gain at one end you lose at the other. It's like feeding a dog =
on his=20
own tail. It won't fatten the dog.<br>
- Speech 11/23/1900 Mark Twain<br><i><i><i><i><br><a href=3D"http:/=
/heretothereideas.blogspot.com/" target=3D"_blank">http://heretothereideas.=
blogspot.com/</a><br></i></i></i></i></div>
</div>
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