On Sun, 23 Aug 2020 02:53:16 -0700, Mike S wrote:

I have a friend whose phone slowed down quite a bit, he did the usual
stuff (clear cache, remove unneeded apps including stuff running in the
background) but it's still frustratingly slow. It's a Samsung and it's 4
years old and he uses it a lot.

I read about write cycle limits per memory cell he

"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 versus 10,000 in the more standard MLC type. This might be why
Samsung devices have a reputation for slowing down more than non-Samsung
devices."
https://www.makeuseof.com/tag/phones-slow-usage-years/

I was wondering if anyone knows of an app that shows the write count for
memory in an Android phone.


Maybe:
"Samsung's HIDDEN Diagnostic Mode [Test Mode]"
https://www.youtube.com/watch?v=hIoZ4TSAQoQ
If you look at the tests offered, the button in the lower left is for
an "MLC" test, which might be a memory test. I don't have access to a
working Samsung phone to test this.

Hint: Samsung phone model number? It might be amusing to verify the
type of SSD used in the phone. Also, the larger SSD chips use a
rather large SLC area as a cache, which drastically reduces access
wear and tear in the MLC/TLC/QLC memory.

There are also apps that claim to do a "storage stress test":
"Phone Check and Test"
https://play.google.com/store/apps/details?id=com.inpocketsoftware.andTest&hl=en_US
I'm not sure that beating up on the Flash RAM is a good idea if it's
really that fragile.
--
Jeff Liebermann
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558