Digest for sci.electronics.repair@googlegroups.com - 7 updates in 3 topics

Andy Burns <usenet@andyburns.uk>: Aug 23 07:08PM +0100

Mike S wrote:
 
> It's a Samsung and it's 4 years old and he uses it a lot.
 
so lets assume a 2016 phone has 16GB
 
> "Note that TLC is a type of NAND memory pioneered by Samsung. It's the
> cheapest to produce but has the worst durability: 4,000 write cycles per
> cell
 
so that's 64 TBW ...
Mike S <mscir@yahoo.com>: Aug 23 09:43PM -0700

On 8/23/2020 11:08 AM, Andy Burns wrote:
>> cheapest to produce but has the worst durability: 4,000 write cycles
>> per cell
 
> so that's 64 TBW ...
 
Are you saying 64 Terrabytes written? That sounds like an awful lot.
It's probably more along the lines of what Phil said. Still, too bad
there's no display of the memory stat's.
Thanks,
Mike
Mike S <mscir@yahoo.com>: Aug 23 09:44PM -0700

On 8/23/2020 4:20 AM, Phil Allison wrote:
 
> I have read that such phones slow down by design as they get old, yep phones do know how old they are. Makers claim it is to preserve running time on a battery that has lost capacity - as Lithium types all do.
 
> Others suspect it is to make you buy a new phone...
 
> .... Phil
 
Thanks, Do you think running a non-std OS bypasses that programming, if
it exists?
Andy Burns <usenet@andyburns.uk>: Aug 24 08:47AM +0100

Mike S wrote:
 
> Are you saying 64 Terrabytes written? That sounds like an awful lot.
 
It does a bit, maybe TBW calculations should include division by
whatever block size the flash uses?
 
> It's probably more along the lines of what Phil said. Still, too bad
> there's no display of the memory stat's.
 
I don't think number of write cycles is about deliberate slowing down,
it's about reaching the point that writes start failing.
 
I've heard complaints about Apple deliberately slowing down older
devices, other manufacturers not so much.
tabbypurr@gmail.com: Aug 23 07:19PM -0700

On Sunday, 23 August 2020 03:26:43 UTC+1, Paul Drahn wrote:
 
> thick. Original motor is not powerful enough. She has to help the
> machine by hand.
> Paul
 
Damn. I once sewed 12 layers of denim with my oldest one, 1960. It struggled but got there.
 
 
NT
etpm@whidbey.com: Aug 23 05:08PM -0700


>Of course motor rated caps have advantages. So do higher rated non-motor caps.
>But the key point the op appears to have not noticed is that his crude paper cap has already lasted over 70 years. That is more than good enough.
 
>NT
So you suggested that I stuff the old cap with a new cap(s). I knew
new motor run caps were too big to fit in the old cap case. You
suggested I use modern caps with the same ratings. I wondered why
motor run caps are still so much physically larger than caps with the
same specs but which are not motor run caps. Then you post the answer
above. I am not sure why you even bothered.
Eric
 
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etpm@whidbey.com: Aug 23 05:11PM -0700

On Sun, 23 Aug 2020 07:20:43 -0700 (PDT), "pfjw@aol.com"
 
>We do not know that at all. What we do know is that *FINALLY* Eric has gotten around to dealing with it.
 
>Peter Wieck
>Melrose Park, PA
I was going to go back in time to replace that cap but my time machine
was serviced byb me after a few gins so instead I waited until I
bought the grinder in real time, used it for a couple years, posted a
question about it here and now I have a new cap coming.
Eric
 
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