A friend called me saying his 1TB SD Card he was using for backup stopped working on Windows & MacOS

On Fri, 09 Aug 2019 17:13:41 -0500, Wildman wrote:

On Thu, 08 Aug 2019 23:08:25 +0100, p-0''0-h the cat (coder) wrote:

On Thu, 8 Aug 2019 04:10:34 -0000 (UTC), Diesel wrote:

You're over thinking this and completely ignoring another
possibility, Paul. That being, one or more voltage/current
regulation/filtering components (and not the memory chips) has
failed.

Show me the regulator

Sure.

https://whatis.techtarget.com/definition/resistor

A resistor is an electrical component that limits or regulates the
flow of electrical current in an electronic circuit. Resistors can
also be used to provide a specific voltage for an active device such
as a transistor.

snip

Pooh didn't ask me to show him any regulator, though. I suppose he
knows what a resistor does,

Resistors aren't regulators. They reduce current flow but that only
remains stable if the power to the circuit remains stable. Ohm's law.

Sent from my iFurryUnderbelly.

That depends on your meaning of "regulator". If you are
thinking about a solid-state device then no, a resistor is
not a regulator. If you are thinking of any device that
can limit current then yes, a resistor is a regulator. In
fact that is its primary function.

The current limiter thingy is sloppy terminology really. Resistors are
passive devices, they reduce current flow dependent upon tada the
voltage so they don't actually limit current in any absolute sense
except when they go bang. I get why the term is used because that is one
practical use. As Paul pointed out most circuits are far more dynamic
anyway. The SD card we are discussing is a case in point. The resistors
and capacitors we are talking about may have nothing to do with
regulation anyway. Chips have all kinds of requirements for components
to be connected to their pins, yunno pull up/down, slew rate whatever is
on the data sheet.


In a circuit that draws a constant current, a simple voltage
regulator (divider) can be made with two resistors in series
connected between the voltage source and ground. The load is
connected to the point between the resistors. The values
(resistance and wattage) of the resistors would depend on the
current.

Also, a single resistor could be used in series with the load
but it would be more sensitive to slight current variations.
The two resistor circuit is more stable.

Sent from my iFurryUnderbelly.

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Wildman wrote:


Also, a single resistor could be used in series with the load
but it would be more sensitive to slight current variations.
The two resistor circuit is more stable.


But we have to give Dustin a chance to give us his idea.

Dustin will show us some typical values, do a line regulation
and load regulation calc, show us how the circuit is
suitable for the operation of a silicon chip.

And so on.

Giving away an entire book of power circuits, won't help.

Dustin wants to show us his stuff.

---- R ---- Dustin
??? |
GND

For some value of Dustin.

Paul

On Fri, 09 Aug 2019 23:51:38 +0100, p-0''0-h the cat (coder) wrote:

On Fri, 09 Aug 2019 17:13:41 -0500, Wildman wrote:

On Thu, 08 Aug 2019 23:08:25 +0100, p-0''0-h the cat (coder) wrote:

On Thu, 8 Aug 2019 04:10:34 -0000 (UTC), Diesel wrote:

You're over thinking this and completely ignoring another
possibility, Paul. That being, one or more voltage/current
regulation/filtering components (and not the memory chips) has
failed.

Show me the regulator

Sure.

https://whatis.techtarget.com/definition/resistor

A resistor is an electrical component that limits or regulates the
flow of electrical current in an electronic circuit. Resistors can
also be used to provide a specific voltage for an active device such
as a transistor.

snip

Pooh didn't ask me to show him any regulator, though. I suppose he
knows what a resistor does,

Resistors aren't regulators. They reduce current flow but that only
remains stable if the power to the circuit remains stable. Ohm's law.

Sent from my iFurryUnderbelly.

That depends on your meaning of "regulator". If you are
thinking about a solid-state device then no, a resistor is
not a regulator. If you are thinking of any device that
can limit current then yes, a resistor is a regulator. In
fact that is its primary function.

The current limiter thingy is sloppy terminology really. Resistors are
passive devices, they reduce current flow dependent upon tada the
voltage so they don't actually limit current in any absolute sense
except when they go bang. I get why the term is used because that is one
practical use.

I agree the terminology is sloppy. Actually I have worked in
comsumer electronics repair for over 20 years (got out of it
in 1999) and I have never thought of a resistor as a regulator.
When I think of regulator I think of an active circuit that
maintains a constant voltage across a wide range of current
requirements. A resistor certainly doesn't do that. The
little thing called Ohm's Law gets in the way.

Having said all that, I still maintain that a resistor is a
regulator of sorts, if you use the sloppy difinition. I do
believe the term "limiter" might be a better description tho.

As Paul pointed out most circuits are far more dynamic
anyway. The SD card we are discussing is a case in point. The resistors
and capacitors we are talking about may have nothing to do with
regulation anyway. Chips have all kinds of requirements for components
to be connected to their pins, yunno pull up/down, slew rate whatever is
on the data sheet.

Chances are you are correct but there is the outside chance
that resistors and/or capacitors connected to a chip could
be part of an internal regulation circuit. Probably not
but a possibility.

--
Wildman GNU/Linux user #557453
The cow died so I don't need your bull!

On Fri, 09 Aug 2019 20:59:59 -0500, Wildman wrote:

On Fri, 09 Aug 2019 23:51:38 +0100, p-0''0-h the cat (coder) wrote:

On Fri, 09 Aug 2019 17:13:41 -0500, Wildman wrote:

On Thu, 08 Aug 2019 23:08:25 +0100, p-0''0-h the cat (coder) wrote:

On Thu, 8 Aug 2019 04:10:34 -0000 (UTC), Diesel wrote:

You're over thinking this and completely ignoring another
possibility, Paul. That being, one or more voltage/current
regulation/filtering components (and not the memory chips) has
failed.

Show me the regulator

Sure.

https://whatis.techtarget.com/definition/resistor

A resistor is an electrical component that limits or regulates the
flow of electrical current in an electronic circuit. Resistors can
also be used to provide a specific voltage for an active device such
as a transistor.

snip

Pooh didn't ask me to show him any regulator, though. I suppose he
knows what a resistor does,

Resistors aren't regulators. They reduce current flow but that only
remains stable if the power to the circuit remains stable. Ohm's law.

Sent from my iFurryUnderbelly.

That depends on your meaning of "regulator". If you are
thinking about a solid-state device then no, a resistor is
not a regulator. If you are thinking of any device that
can limit current then yes, a resistor is a regulator. In
fact that is its primary function.

The current limiter thingy is sloppy terminology really. Resistors are
passive devices, they reduce current flow dependent upon tada the
voltage so they don't actually limit current in any absolute sense
except when they go bang. I get why the term is used because that is one
practical use.

I agree the terminology is sloppy. Actually I have worked in
comsumer electronics repair for over 20 years (got out of it
in 1999) and I have never thought of a resistor as a regulator.
When I think of regulator I think of an active circuit that
maintains a constant voltage across a wide range of current
requirements. A resistor certainly doesn't do that. The
little thing called Ohm's Law gets in the way.

OK

Having said all that, I still maintain that a resistor is a
regulator of sorts, if you use the sloppy difinition. I do
believe the term "limiter" might be a better description tho.

Current limiter is widely used. I have no problem with that. In fact I
never had a problem until Dusty dragged me into this and used my brand
as back up for his pride driven bluster. What was a cat to do. Paul was
more correct. I'm an equal opportunities troll. We should aim towards
greater understanding and clarity. Call me an idealist. It's my cross to
bear.


As Paul pointed out most circuits are far more dynamic
anyway. The SD card we are discussing is a case in point. The resistors
and capacitors we are talking about may have nothing to do with
regulation anyway. Chips have all kinds of requirements for components
to be connected to their pins, yunno pull up/down, slew rate whatever is
on the data sheet.

Chances are you are correct but there is the outside chance
that resistors and/or capacitors connected to a chip could
be part of an internal regulation circuit. Probably not
but a possibility.

I suspect there are no discrete components whatsoever inside a 1TB SD
card. Out of interest I broke open an 8GB SD card yesterday and all it
contained was a single slab of plastic about a quarter of the size of
the outer with the external connectors visible on the surface and a row
of connections just like in the youtube video I posted which I assume
are used for testing and QC. However, I won't be breaking open £250's
worth of 1TB card to prove the point. If there's nothing to fix inside
an 8GB card I suspect the days of discrete components to repair died
long ago.

Sent from my iFurryUnderbelly.

--
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the OVERCAT [The BEARPAIR are dead, and we are its murderers], lowlife troll,
shyster [pending approval by STATE_TERROR], cripple, sociopath, kook,
smug prick, smartarse, arsehole, moron, idiot, imbecile, snittish scumbag,
liar, total ******* retard, shill, pooh-seur, scouringerer, jumped up chav,
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I mark any message from »Q« the troll as stinky

On 08/08/2019 06.10, Diesel wrote:
"Carlos E.R."
Wed, 07 Aug 2019 11:19:08 GMT
in alt.comp.freeware, wrote:

On 07/08/2019 07.31, Diesel wrote:
"Arlen G. Holder"
Tue, 06 Aug 2019 15:33:59 GMT
in alt.comp.freeware, wrote:


What's interesting is that nobody here seems surprised that card
hardware would just die like that - so maybe it's really common
(dunno).

What's more interesting than that to me is the amount of people
using google for their information, and evidently, nobody who's
posted, aside from myself? has actually opened these things up
and succesfully repaired some.

I know I can not solder a tiny flash memory card.

I can.

Good for you :-p


And no, as all of my cards are in working condition, I'm not going
to open one up. But I can see the components on some transparent
USB sticks I have, and I know I do not have the tools to work on
them - starting with a microscope.

You don't *need* a microscope to do it, you *can* use a jewelers
magnifiying visor setup, instead.

That's mostly translation issue. I don't have either.

--
Cheers, Carlos.

On 09/08/2019 20:43, Diesel wrote:
I'm not going to play along this time, Pooh. Sorry. It's too much
like the inline vs series debate you tried to derail another
conversation with. I left the definition when I responded to Paul for
a reason. You may argue with the definition, if you'd like. I'm not
going to waste the time.

Methinks you are 'out of your league', Dustin! ;-)

What do you think of what has been said he-

https://eclecticlight.co/2017/05/07/...he-upper-hand/

(This is the reference for my recent post to Wolffan)

--
David B.
Devon

On Sat, 10 Aug 2019 09:41:33 +0100, ~BD~ wrote:

Why are you still cross-posting to acf?
Ah, STALKING_TARGET_05

I wouldn't have noticed if it wasn't for the usual
STALKING_LINK.
I'll leave the crosspost up, with the mandatory [OT]. It's
also [OT] in ALL the groups you are cross-posting that malicious link
under another thread. Groups restored.

---------------
BD: I want people to "get to know me better. I have nothing to
hide".

I'm always here to help:

http://tekrider.net/pages/david-brooks-stalker.php

50 #FAKE_NYMS, most used in cybercrimes!
Google "David Brooks Devon"
[]'s
--
Don't be evil - Google 2004
We have a new policy - Google 2012

On 09/08/2019 21:49, Paul wrote:
[....]
A resistor regulates **** all.

Now, pop open a textbook about power supply
design. How many *active* devices did you see
in the book. Hint: An *active* device is not
a resistor. A resistor is a passive.

Â*Â* Paul


I saw this and thought of you! ;-)

--
David B.
Devon

Oops!

https://pixelmerch.com/eng-resist?co...=men-s-t-shirt


--
David B.
Devon

"Carlos E.R." news:7ic22g-j3g.ln1
@Telcontar.valinor Sat, 10 Aug 2019 08:41:11 GMT in alt.comp.freeware,
wrote:

[snip]

And no, as all of my cards are in working condition, I'm not going
to open one up. But I can see the components on some transparent
USB sticks I have, and I know I do not have the tools to work on
them - starting with a microscope.

You don't *need* a microscope to do it, you *can* use a jewelers
magnifiying visor setup, instead.

That's mostly translation issue. I don't have either.

Ahh.




--
Slang is language that takes off its coat, spits on its hands, and goes
to work

"p-0''0-h the cat (coder)"
Fri, 09 Aug 2019
20:23:54 GMT in alt.comp.freeware, wrote:

On Fri, 9 Aug 2019 19:43:08 -0000 (UTC), Diesel
wrote:

"p-0''0-h the cat (coder)"
m Thu, 08 Aug 2019
22:08:25 GMT in alt.comp.freeware, wrote:

On Thu, 8 Aug 2019 04:10:34 -0000 (UTC), Diesel
wrote:

You're over thinking this and completely ignoring another
possibility, Paul. That being, one or more voltage/current
regulation/filtering components (and not the memory chips)
has failed.

Show me the regulator

Sure.

https://whatis.techtarget.com/definition/resistor

A resistor is an electrical component that limits or regulates
the flow of electrical current in an electronic circuit.
Resistors can also be used to provide a specific voltage for an
active device such as a transistor.

snip

Pooh didn't ask me to show him any regulator, though. I suppose
he knows what a resistor does,

Resistors aren't regulators. They reduce current flow but that
only remains stable if the power to the circuit remains stable.
Ohm's law.

I'm not going to play along this time, Pooh.

I've left you no room to manoeuvre. I realised that just after I
clicked 'Send'.

Sorry.

My mistake. I went for the quick kill. I failed to win the crowd
first. Ha.

*yawn* you greatly over estimate yourself.

It's too much like the inline vs series debate you tried to derail
another conversation with.

Not at all. The inline vs series debate was about electronic vs
electrical terminology, this is quite obviously about component
function.

electronic vs electrical terminology? So, umm, we have an electrical
resistor and an electronic resistor now do we? [g]

I left the definition when I responded to Paul for a reason.

Really. Enlighten me. It looked to me like you were just being
sloppy and you let Paul pull your plonker.

I'm not being sloppy. I said nothing about a solid state regulator,
didn't even specify voltage or current or both. I left it at
regulator. You and Paul strolled off from there.

You may argue with the definition, if you'd like. I'm not
going to waste the time.

I don't think there is much to argue about.

Nah, there isn't really. I provided standard troubleshooting
procedures, and Paul for whatever reason opted to skip them and
declare without checking how accurate/inaccurate they were that the
SD cards when they fail are just ****ed and you're out the data,
always.

Except, that's not always the case and sometimes it's the SMD
component(s) responsible for the 'dead' sdcard. Paul goes onto to
claim that he's never seen dead SMD components on anything. Paul must
live in an off world bubble if that's the case. I really don't know
why he'd think SMD wouldn't have the same issues and limitations as
their physically larger counter parts. Electronic components fail,
regardless of physical dimensions or packaging.


--
Slang is language that takes off its coat, spits on its hands, and
goes to work

Paul Fri, 09
Aug 2019 20:49:45 GMT in alt.comp.freeware, wrote:

I'm not going to play along this time, Pooh. Sorry. It's too much
like the inline vs series debate you tried to derail another
conversation with. I left the definition when I responded to Paul
for a reason. You may argue with the definition, if you'd like.
I'm not going to waste the time.

1) Show me your proposed "circuit".

I offered you no such thing. I questioned why you left out the proper
troubleshooting prodecure and delved right into jtag probing, etc. What
good does your advice do if there's physical connection issues and/or
dead SMD components further up the chips food chain? Answer: none,
whatsoever. Yet, you didn't even suggest checking for any of that. The
SDCARD we've discussed has been flying in a ****ing drone for christs
sake. You don't think vibration does anything to a circuit board?
Nevermind, You probably haven't got a clue.

Rinse and repeat.

A resistor regulates **** all.

If that's the case, you shouldn't have any problems removing all
greater than 0ohm resistors from everything electronic in your house,
replacing all of them with jumper wires. Let us know how the device
works after your modifications, ok?



--
11th Commandment: covet not thy neighbour's Pentium.

~BD~ Sat,
10 Aug 2019 08:41:33 GMT in alt.comp.freeware, wrote:

On 09/08/2019 20:43, Diesel wrote:
I'm not going to play along this time, Pooh. Sorry. It's too much
like the inline vs series debate you tried to derail another
conversation with. I left the definition when I responded to Paul
for a reason. You may argue with the definition, if you'd like.
I'm not going to waste the time.

Methinks you are 'out of your league', Dustin! ;-)

Considering that you (along with Pooh) couldn't answer basic questions
about a couple of circuits I shared previously, it doesn't surprise me
that you think I'm out of my league. You don't even know what we're
writing about.

And if you think I'm out of my league for suggesting the proper way in
which to troubleshoot a circuit board, you're a far bigger idiot than
I've previously given you credit for being. Cluebyfour, moron, you
don't jump right in with jtag probing until you know ALL connections
that should be made still are, and the components ahead of the chip you
want to examine, because you think it's dead, are still working as
expected. IE: power is going where it should be at the correct levels.
Until you do that, first, you're wasting your ****ing time probing
around on anything.

You do not skip those steps, they exist for a ****ing reason. Tried and
true troubleshooting methodology here, numbnuts. It predates me, and
likely everyone in this discussion by years, if not decades.


--
Quite content to sit on this fence... quite content, now a little bit
older...

Wildman
Sat, 10 Aug 2019
01:59:59 GMT in alt.comp.freeware, wrote:

[snip]

Chances are you are correct but there is the outside chance
that resistors and/or capacitors connected to a chip could
be part of an internal regulation circuit. Probably not
but a possibility.

http://www.ohmslawcalculator.com/555-astable-calculator

Quite the possibility, actually.




--
Sha-ZAM sirrah!

Paul Fri, 09
Aug 2019 23:09:10 GMT in alt.comp.freeware, wrote:

Wildman wrote:


Also, a single resistor could be used in series with the load
but it would be more sensitive to slight current variations.
The two resistor circuit is more stable.


But we have to give Dustin a chance to give us his idea.

An idea for? I simply questioned why you opted to skip standard
troubleshooting procedures...And you've been on quite a rant ever
since.

Dustin wants to show us his stuff.

Aha. That's what this is really about. You don't like being
questioned when you offer advice. I gotcha. Had you provided the
standard troubleshooting prodecures first and went from there, I'd
have said nothing. But you didn't do so.

I have fixed several sdcards using the methodology I outlined. A
methodology I didn't invent, it's decades older than myself, and
likely you. a solid, troubleshooting 101 metholodogy. Maybe next time
you decide to offer troubleshooting repair advice, you don't skip the
first ones that should always be performed before going deeper? And
maybe not be so quick to make assumptions as to what the user
is/isn't going to find if they opt to open the device to try and
repair it? Just a suggestion. Take it or not.

As for Arlens friends issue, as I told him, it looks great from my
house.






--
'I think so, Brain, but we'll never get a monkey to use dental
floss.'