Kingston 64Gb microSDXC card keeps getting dirty and corrupted - Windows 8 General

I'm fed up with this damn sd card. I use this microsd card with a sd adapter for my duo11 and it keeps getting dirty or corrupted. This is the second time it got dirty and a few days ago i lost almost 40gbs worth of stuff because of some corruption in one of the folders. It was impossible for me to recover any data from it and now i'm too scared to transfer any files into it.
Does this mean the card is faulty?
I tried reformatting it but it gets dirty out of nowhere. Its formatted to exfat right now and i don't know what format it was last time.
Am i the only one having this problem?
Should i just buy an sd card for my tablet instead of a micro sd card and use a sd adapter for it instead??

How old and heavily used is the card. They do have a VERY short lifetime. Formatting actually eats into the lifetime slightly. Defragging would even more (although I think windows is clever about not defragging flash storage normally). Basically there is a limited number of times am SD card can be written to, also a limit on reads but reading has an almost negligible impact compared to writing.
Chances are if the card has been well used for even 6 months or so then the card is simply dying, it may have a warranty on it.
If its a new card then it is faulty, take it back to the vendor and demand a refund.
An SD card won't fare much better than a MicroSD. Many SD cards just have the circuit from a microSD stuck in one end, the back half of them tends to be hollow. only advantage of full SD is that you can get a 128gb card with 256gb cards expected to be released soon (and 128gb MicroSD).
SD cards often use a technique called wear levelling. This essentially deliberately fragments your data to spread it across the card and prevent the same locations on the card getting repeatedly written to. This does actually work better the larger the card is as there are more locations available, but 64gb is already huge so is plenty for wear levelling. Boosts the lifetime of the card considerably. But it doesn't always work so well when the card is full.
I would get the card sorted out and replaced. And then try to limit how often you actually read and write into it. Don't run applications off of it for example.
The raspberry pi guys often have plenty of issues with SD cards and their short lives. Booting Linux off of the things has a tendancy to kill then young.

SixSixSevenSeven said:
How old and heavily used is the card. They do have a VERY short lifetime. Formatting actually eats into the lifetime slightly. Defragging would even more (although I think windows is clever about not defragging flash storage normally). Basically there is a limited number of times am SD card can be written to, also a limit on reads but reading has an almost negligible impact compared to writing.
Chances are if the card has been well used for even 6 months or so then the card is simply dying, it may have a warranty on it.
If its a new card then it is faulty, take it back to the vendor and demand a refund.
An SD card won't fare much better than a MicroSD. Many SD cards just have the circuit from a microSD stuck in one end, the back half of them tends to be hollow. only advantage of full SD is that you can get a 128gb card with 256gb cards expected to be released soon (and 128gb MicroSD).
SD cards often use a technique called wear levelling. This essentially deliberately fragments your data to spread it across the card and prevent the same locations on the card getting repeatedly written to. This does actually work better the larger the card is as there are more locations available, but 64gb is already huge so is plenty for wear levelling. Boosts the lifetime of the card considerably. But it doesn't always work so well when the card is full.
I would get the card sorted out and replaced. And then try to limit how often you actually read and write into it. Don't run applications off of it for example.
The raspberry pi guys often have plenty of issues with SD cards and their short lives. Booting Linux off of the things has a tendancy to kill then young.
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Its only been 3months or so. God i thought they would last as long as my hard drive seeing how they last ok on a phone. So there isn't no way of increasing hard drive space without replacing the hard drive? I'm using a duo11 which uses a 128gb ssd which would cost a fortune to swap it for a bigger one =.="

In a phone the SD is barely ever written to. You might stick some music on it when you buy the phone and maybe once or twice a fortnight. Perhaps the odd photo too, but otherwise the SD is under-used in a phone.
On the duo your best off using the SSD most of the time and just using the SD as long term storage.
Give Kingston a call and see if they will issue a new card under warranty.

Even an extremely low-end piece-of-junk SD card from five years ago should have a minimum endurance of at least 5k writes, and that's a really, really terrible one (even cheap flashdrives have typically over 50k writes these days). To come even close to wearing out a mere 5k writes in 6 months though, you would need to write the entire capacity of the card (remember, wear leveling) more than 25 times every day. Although this is certainly technically possible, the odds of it happening are extremely low unless you were running a database server off of it (or something equally foolish). For more realistic numbers of the card endurance, there is almost no physical way to burn through the entire write lifetime of the chip in three months.
Also, the Flash storage used in SSDs and tablets (and phones, for that matter) is basically the same kind of NAND flash used in SD cards. It might be higher quality - a decent SSD typically has 100k - 500k write endurance these days, which will last for many years of continuous use - but it has the same limits. People just don't realize how generous those limits are. I have perfectly functional SD cards from 2005 or so. I don't have much use for a 1GB SD card any more, but I used that thing for ReadyBoost on my Vista beta laptop, and that's about as heavy of a practical use case on a home PC you're likely to get... and it still works fine.
With that said, it's entirely possible for the cards to be defective. Too many bad Flash cells, a defect in the controller chip that does the wear leveling and so forth, or a reasonable number of other things. There's a lot more to an SD card than a slab of NAND cells... and even those could have a defect that slipped past testing. Warranty replacement sounds about right.

Depends on where OP gets the SD card. If bought from, say, eBay and not from an authorized big-name dealer, high probability for a counterfeit or reject.

Some of the guys running raspberry pi servers have had lifetimes as short as a month from branded cards (and usually no problems getting them swapped). That said, you probably can't get any more usage out of an SD card then when it is being used as the boot device for a computer.

Related

80 gb sata or 4gb microdive on imate jam

i was just thinking if i could get sd card pinouts and then match them with sata drive pinouts basically data in data out and power is required but like everybody i won't want to burn my lovely handset , someone must be thinking of it right now.
geeze how much storage do you want?
what you going to do with 4 gigs of storage, 2 gig SD card is bad enough for stable partitions
If iPod users can find something to do with all that space, so can PDA users. >_>
(In any case, OP, I think there's nobody here that can answer your question, since tech minded people don't come around here often. Try posting in the Upgrading/Modifying/Unlocking forums. You *MIGHT* get more help there.)
Ultimate Chicken said:
If iPod users can find something to do with all that space, so can PDA users. >_>
(In any case, OP, I think there's nobody here that can answer your question, since tech minded people don't come around here often. Try posting in the Upgrading/Modifying/Unlocking forums. You *MIGHT* get more help there.)
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well if you own an ipod i guess i was correct about you then.
you fly that flag loud and proud !
I don't own an 'Pod. However, I have replaced a battery on someone else's. Once.
Guy I did it for tells me 20gig isn't enough for his collection. <_<
In any case, I don't have any trouble with 2gig - I can barely fill up half with my stuff as it is (Unless I'm using the PS emulator, but that's another story).
Oh, and keep trollin', soldier.
i have prob with storage, too
2bg are not enough for sure
especially when you have such a games or programs like:
syberia ~200mb
tomtom -''-
and when you do some job which needs to save your important data (such as presentations, ebooks, documents, ...)
and when your life is not just business life but fun and entertainment life also, and you need some free sd space for music (at least 0,5gb).
putting HDD in some future models of htc is not so good move (check Samsung's i300 model fiasco). battery life: 3-4h, noise, weight:more then 150g smart and probably more then 250gr pocketpc), short life, no repairs, no replaements/warranty,...
1. question: what is the maximum sd card size for the Magician.
I have 1gb Apacer card. works well.
2. question: Any realtions sd card size - battery life??
yeah
,
there is 8gb sd card now in market and 16 gb is soon coming or may be out and some guy put two 4gb nano memories together to make it 8 gb (ipod hacking), there could be some logic to put chips together if only i could get some notes on sd card inner's
I'm using a 4Gb SD card which so far is working just fine.

[Q] SD Card Worth It?

I am going to pick one of these up, but before I did, had a quick question (anyone with a WP7 can answer)
Do you feel that 8gb is enough space? Or do you wish you had more? Should I get an SD Card?
Most definitely. I have loaded most of my music and a few videos and I already used over 6GB. That's pretty much all the stock phone has. Now, I have over 14GB still left. Might put some movies on it.
My only disappointment in the focus is the 8GB stock NAND. For a $199 on contract device, 16GB really should be the minimum, especially considering a few other WP7 phones, to say nothing of Android phones and the iPhone, all start at $199 with 16GB.
That said, adding the SD card isn't that big a deal as long as you do it before you've filled the device up. For some reason there seems to be no ability to do a full backup of the phone by any means I've been able to find.
The problem with the SD Cards is that there's intense confusion/miscommunication about which cards work well. Just because it works with 6GB doesn't mean anything. What seems to happen is once you get to 8GB filled, the phone's performance takes a nose-dive, sometimes leading to losing all data.
"Enough space" depends on you, not us. I have an iPhone, iPad and iPod, all 16GB units, each with some 14GB or so of music & apps on them so it the first thing I did when I brought the Focus home was slap an 8GB card in there, format it and load it up. I have maybe 2GB free and it's worked without a single glitch for the past two weeks. For reference, mine is a Sandisk class 2. People seem to have problems with cards other than Sandisk and other than class 2 and I noticed absolutely no performance problems so if you're going to try it, try that and keep the receipt in case you need to return or swap it should something go sour.
Enough Space?
I agree with Mark, whether there is enough space or not really depends on what your usage requirements are.
I had a 32GB Zune and when I bought my Samsung Focus the Zune had over 20GB of data on it. So for me adding and 32GB SD card to the Focus was not only a desire but a very strong selling point for the Phone.
And yes, I am seeing a few issues with the Sandisk Card that is in it. Currently they are not enough to make me yank the Card because I (again) bought the device to specifically be a convergence device for myself and I am at heart a tester and tinkerer so figuring how exactly how WP7 works.doesn't work with an SD Card and the statement that MS and Samsung are working on a fix is enough for me right now.
Smaller Sized Cards seem to be more reliable than larger cards (not to mention less expensive) but that appears to anecdotal evidence as well. My 32GB Sandisk only causes freezes and resets when on Battery for example and I've not had anyone else confirm if they are seeing the same.
Not great answers but, hey, this is the fun of learning as we go along...
- MEK
FishFaceMcGee said:
The problem with the SD Cards is that there's intense confusion/miscommunication about which cards work well. Just because it works with 6GB doesn't mean anything. What seems to happen is once you get to 8GB filled, the phone's performance takes a nose-dive, sometimes leading to losing all data.
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I have more than 11GB on my Focus with no issues at all. No slow-downs, no hiccups, no data loss period. I am currently using a PNY 16GB Class 2 card. I previously had a Centon 8GB Class 6 card with the same results.
If you read the thread on MicroSD cards, it seems there are some cards that have been working pretty much flawlessly. Both of the cards I mentioned have worked perfectly for me. I gave the 8GB to a friend and he is using it in his Focus as well.
For me, to really make a portable phone/audio/video device be best for me it would need at least 150GB of storage... and a few TB if i wanted to listen to music lossless and a few movies.
MKohlman said:
I agree with Mark, whether there is enough space or not really depends on what your usage requirements are.
I had a 32GB Zune and when I bought my Samsung Focus the Zune had over 20GB of data on it. So for me adding and 32GB SD card to the Focus was not only a desire but a very strong selling point for the Phone.
And yes, I am seeing a few issues with the Sandisk Card that is in it. Currently they are not enough to make me yank the Card because I (again) bought the device to specifically be a convergence device for myself and I am at heart a tester and tinkerer so figuring how exactly how WP7 works.doesn't work with an SD Card and the statement that MS and Samsung are working on a fix is enough for me right now.
Smaller Sized Cards seem to be more reliable than larger cards (not to mention less expensive) but that appears to anecdotal evidence as well. My 32GB Sandisk only causes freezes and resets when on Battery for example and I've not had anyone else confirm if they are seeing the same.
Not great answers but, hey, this is the fun of learning as we go along...
- MEK
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Click to collapse
You know, I was thinking about this the other day...the phone has 8GB of internal memory and if you put in an SD card it stripes data across it and the internal memory. If the card is 8GB or smaller that's fine but what happens if the SD card is larger than internal memory? It doesn't stripe the first 8GB and set the rest up as another partition and it does appear to use but it can't be striped. Now you've mentioned that smaller sized cards work better and my 8GB card works perfectly. I wonder if the file system's attempt to work with a larger card is inherently unstable? I know that if you put two different sized drives in a Windows box and stripe across them you will only end up with double the size of the smallest drive, not the actual sum of the two. Might be an interesting poll...indicate the size of your SD card and if the phone has been 100% stable since inserting it.
markgamber said:
You know, I was thinking about this the other day...the phone has 8GB of internal memory and if you put in an SD card it stripes data across it and the internal memory. If the card is 8GB or smaller that's fine but what happens if the SD card is larger than internal memory? It doesn't stripe the first 8GB and set the rest up as another partition and it does appear to use but it can't be striped. Now you've mentioned that smaller sized cards work better and my 8GB card works perfectly. I wonder if the file system's attempt to work with a larger card is inherently unstable? I know that if you put two different sized drives in a Windows box and stripe across them you will only end up with double the size of the smallest drive, not the actual sum of the two. Might be an interesting poll...indicate the size of your SD card and if the phone has been 100% stable since inserting it.
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I'm not totally convinced based on comments in blogs that the disks are "striped". I think a lot of people are saying this and maybe using the term out of context and everyone just keeps using it. Has Microsoft actually come out to say "WP7 performs RAID 0 configuration"? For a phone OS which was never intended to see anything other than a single drive, don't you think throwing a RAID controller in there just for kicks is a little absurd?
The other term is "span" and if I had money, I'd bet that the two disks were spanned as a single partition, as opposed to striping like RAID 0 does.
Despite all of that, I have tried a 16gb class 4 with more issues than I cared for and currently have an 8gb class 4 with negligible issues. Any card you get, I'd run on Vista/Windows 7 and test for ReadyBoost. That at least tests the card for random access speed, which is important. My 16gb failed readyboost and had lots of issues in my Focus, whereas the 8gb passed and the only issues I've seen with that one are issues that other people might have experienced on their own phones sans sd card.
hyperzulu said:
I'm not totally convinced based on comments in blogs that the disks are "striped". I think a lot of people are saying this and maybe using the term out of context and everyone just keeps using it. Has Microsoft actually come out to say "WP7 performs RAID 0 configuration"? For a phone OS which was never intended to see anything other than a single drive, don't you think throwing a RAID controller in there just for kicks is a little absurd?
The other term is "span" and if I had money, I'd bet that the two disks were spanned as a single partition, as opposed to striping like RAID 0 does.
Despite all of that, I have tried a 16gb class 4 with more issues than I cared for and currently have an 8gb class 4 with negligible issues. Any card you get, I'd run on Vista/Windows 7 and test for ReadyBoost. That at least tests the card for random access speed, which is important. My 16gb failed readyboost and had lots of issues in my Focus, whereas the 8gb passed and the only issues I've seen with that one are issues that other people might have experienced on their own phones sans sd card.
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I've read both, striped and spanned...who knows. Considering how slow SD memory always was in old WinMo devices, I didn't think it absurd to stripe data to provide the same kind of speed boost you get when striping hard drives. Hard as it might be to believe, it may have just been that WinMo was slow. I hadn't thought of the readyboost test, that's a good idea. Readyboost is pretty picky.

SD card fried....

I just fried my second transcend 32gb sd in just about a month. is there a problem with galaxy tab 2 with 32gb sd cards?:crying:
gokosan said:
I just fried my second transcend 32gb sd in just about a month. is there a problem with galaxy tab 2 with 32gb sd cards?:crying:
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NO, been using mine for 6 months. What else are you doing? Taking them in and out? Plugging into other devices?
Someone on here said they removed there sd card without unmounting it and fried theirs but thats all I've heard. Personally I run Sandisk 64GB for the MONTH I've had my tab 2 and it was in my SGP 4.0 for several months before, maybe you need a better brand.
These things are not indestructible. They are prone to static shock and physical shock.such as bending or impact.by fried , you mean it will no longer format Fat32?
I got my cheap 32GB micro-sd undetectable after 1 week.
the last thing I remembered is I was copying 1GB file to that SDCard and after it touch 70%-ish it just unmounted from my Tab and died.
lucky thing is the shop is near of my home and it accept RMA
Mine just died, i have'nt been mounting or unmounting the card it. it can't be detected from pc totally fried.
Amazon has great prices on SanDisk ultra class 10 cards save your self some trouble and buy a quality card.
Sent from my A500 using Tapatalk
gokosan said:
Mine just died, i have'nt been mounting or unmounting the card it. it can't be detected from pc totally fried.
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cruise350 said:
Amazon has great prices on SanDisk ultra class 10 cards save your self some trouble and buy a quality card.
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Click to collapse
Actually price or brand makes little difference since Samsung makes the majority of NAND flash memory chips SanDisk makes a small amount and the various vendors package and sell them. But if if makes you feel better buy the most expensive one
I strongly recommended using the SD Formatter instead of formatting utilities provided with operating systems that format various types of storage media. Using generic formatting utilities may result in less than optimal performance for your memory cards.
The approved format utility can correct some corruption problems that OS format cannot.
Get it here
https://www.sdcard.org/downloads/formatter_3/
DigitalMD said:
Actually price or brand makes little difference since Samsung holds all the patents and makes every flash memory chip in the world and the various vendors package and sell them. But if if makes you feel better buy the most expensive one
I strongly recommended using the SD Formatter instead of formatting utilities provided with operating systems that format various types of storage media. Using generic formatting utilities may result in less than optimal performance for your memory cards.
The approved format utility can correct some corruption problems that OS format cannot.
Get it here
https://www.sdcard.org/downloads/formatter_3/
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Click to collapse
NAND flash gets sold by manufacturers (there are more than just Samsung by the way) in "binned" stocks. They're binned by the quality and amount of dead blocks on the chips. Cheap SD cards are usually from lesser quality bins, though not always. Transcend is known for using quality components though, it's unusual the OP would be having problems with it. Perhaps there's a problem with your tablet, or another device in which you're using the cards.
In my experience Kingston and Sandisk have the lowest MBTF (mean-time between failures), and that's from observing return rates / complaints where I work, and in personal use. Also keep in mind cheaper SDXC cards are almost always poorly binned, high-density NAND is a lot more expensive than low-density.
DarkStar851 said:
NAND flash gets sold by manufacturers (there are more than just Samsung by the way) in "binned" stocks. They're binned by the quality and amount of dead blocks on the chips. Cheap SD cards are usually from lesser quality bins, though not always. Transcend is known for using quality components though, it's unusual the OP would be having problems with it. Perhaps there's a problem with your tablet, or another device in which you're using the cards.
In my experience Kingston and Sandisk have the lowest MBTF (mean-time between failures), and that's from observing return rates / complaints where I work, and in personal use. Also keep in mind cheaper SDXC cards are almost always poorly binned, high-density NAND is a lot more expensive than low-density.
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Nahhhhh.
I work with a lab that buys raw Samsung chips for high speed data drives and they never offer to sell us lower quality chips at a reduced price. Everything is priced by storage size and speed. and of course the quantity you purchase. SanDisk is not competitive in the raw market. Transcend buys Samsung and packages it. Packaging is somewhat important, flex and impact can destroy the chips and connectors.

MicroSD Card - Which?

Hello,
It seems NST can be fussy with MicroSD cards so a thread to determine requirements would be fantastic:
1) MicroSD, MicroSDHC and MicroSDXC - Which are supported? Which are recommended?
2) Capacity - After rooting what reasonable size card is required (basic app installation and an 'average' library)?
3) Class rating. You might think bigger is better but I've read reports that class 10 are no good. Similarly, below what class rating is the performance impaired?
For my own part, I am interested so that I either use a card I have or buy one as necessary. I have a plain old 2GB MicroSD (not HC or XC, and therefore without class rating). I'd like to use this to save a bit of cash (and because I've got it here ready and waiting, otherwise unused) however I'd like to be sure that it will operate acceptably both in terms of capacity and performance.
Thank you!
I used my NST for a short while with an old 2GB card, and it worked. I upgraded to a 32GB SanDisk Ultra Class 10/UHS-I SDHC, because I use Aardict with offline copies of Wikipedia etc. (~16GB or so) and it wasn't really economic to buy anything smaller or slower new. However, I've run into problems with the SD card disappearing until after a reboot (even with latuk's kernel with the Class 10 timeout patch that I pointed out to him), and when it comes back, it sometimes comes back with a corrupt filesystem (presumably as a result of the unexpected logical disconnection). I'm putting this down to the Class 10 speed of the card, and I've ordered a replacement Samsung 32GB Class 6 SDHC which I expect to be able to test soon.
cowbutt said:
I used my NST for a short while with an old 2GB card, and it worked. I upgraded to a 32GB SanDisk Ultra Class 10/UHS-I SDHC, because I use Aardict with offline copies of Wikipedia etc. (~16GB or so) and it wasn't really economic to buy anything smaller or slower new. However, I've run into problems with the SD card disappearing until after a reboot (even with latuk's kernel with the Class 10 timeout patch that I pointed out to him), and when it comes back, it sometimes comes back with a corrupt filesystem (presumably as a result of the unexpected logical disconnection). I'm putting this down to the Class 10 speed of the card, and I've ordered a replacement Samsung 32GB Class 6 SDHC which I expect to be able to test soon.
Click to expand...
Click to collapse
Thank you for the reply.
So;
1) Is 2GB enough for 'normal' usage - Stock apart from i) rooting, ii) Kindle App (and dictionary), iii) Launcher 8, iv) small collection of Kindle books (for future proof, let's say <100) and v) misc small apps (e.g., BBC News, BBC Weather)?
2) If Class 10 is to be avoided - Will there be any 'real life' speed difference between a SD and a Class 6 SDHC?
Thanks again!
Apps live in /data which is ~800MB of the Nook's built-in memory. Android 2.1 has no 'move to SD' option, so apps will only use the SD card for caches and offline data (e.g. like Aardict). epubs are usually a few hundred KB, so even if you only have 1GB free, that's still ~3500.
I don't think IO speeds are much of a factor when reading books on a Nook; the CPU and eInk display are probably far more relevant.
SD Card for me like most holds books which are tiny. I do use it to store titanium backup path. I have a few BnW Mangas on there. 2GB should be more than fine. If your buying a card then get a 8GB / 16GB / 32GB class 6 whatever is cheapest GB per £ or $
Class speeds have greatest affect on the write speed of the card. For my other less fussy devices I tend to use samsung class 10 32GB cards which are quite cheap at around £20. They seem just as reliable (or I should say as unreliable) as more expensive ones which have died on me.
I wish I had a cache of little crappy sdcards as I constant have to put disk images on them to flash an android device and it usually involved me backing up one of data sdcards and retask it.
Thanks for the help - I think I'll give the 2GB a try. I can always replace it if it is not up to task and it is not doing anything else, so...
For books (only use I'll have for it) it would seem capacity is a non-issue. As for speed - Well, it's not going to be up to Class 6 standard but I have my doubts that I'd even be able to tell... Especially after a numerous reports that in certain cases (small files) some higher class cards are actually outperformed by lower class cards. And, hey, after getting the guy so cheap the idea of another £20 on an SD card is not ideal. I'll report back if I encounter any problems. Thanks again!
LavaChild0809 said:
Thanks for the help - I think I'll give the 2GB a try. I can always replace it if it is not up to task and it is not doing anything else, so...
For books (only use I'll have for it) it would seem capacity is a non-issue. As for speed - Well, it's not going to be up to Class 6 standard but I have my doubts that I'd even be able to tell... Especially after a numerous reports that in certain cases (small files) some higher class cards are actually outperformed by lower class cards. And, hey, after getting the guy so cheap the idea of another £20 on an SD card is not ideal. I'll report back if I encounter any problems. Thanks again!
Click to expand...
Click to collapse
Write speed is not issue when using as how often do you write the books etc to sdcard. I only mention it for if your spending money.
Trouble I small or low speed sdcards are still usually around £5 min so its does not make financial sense to buy them. Also beware buying cards on ebay or similar sites alot of fakes. If there a few pound how cares but if your spending more.
Got an old phone in drawer? Might have a 1GB card in it etc.

Adoptable storage problems

I was just wondering how many of you have had problems/success with the adoptable storage. I have had two Moto x pures and both have messed up memory cards. I have lost 3 cards total that I could not access even when I tried from my PC. If you have had success I would love to know what card you are using. I've used a SanDisk ultra 64gb. A Samsung Evo 32gb and a lexar 32gb. The blue and gray ones. I'm not sure what the model was. All three of those are dead now pretty much because I can't access them.
What have you done to kill them? Are you rooted and flashing Roms or is this with the stock rom and no root? If the later do they just fail randomly or is there a specific trigger?
Running completely stock. No root. No Roms. I've never flashed anything on these particular phones. I never saw anything in common when the memory cards stopped working. It would just say the memory card was removed and then I would not be able to access it or anything stored on. When I would insert it into the computer it would say I needed to format the card.
Adopted storage puts a lot of stress on SD cards, unofficially even Motorola recommends against it (look in the Lenovo Support forums, several Motorola representatives recommend not to use adopted storage if you can get away with it). The problem is consumer microSD cards are not intended for constant read/write use that adopted storage puts the card though, thus they fail much earlier than "typical" usage situations. Again, this varies by card and it's quality, some will go a very long time, others not so much.
https://forums.lenovo.com/t5/Moto-X...ard-Portable-or-Internal-storage/td-p/3536596
Did you then format the card and test it? Either the card failed due to read write degrading it or it really lost connection and that damaged the file structure.
It may just be the file system not recognised by Windows. Use a low level SD card formatting tool and check after doing a full format.
Sent from my XT1572 using Tapatalk
An SDcard formatted for adoptable storage is encrypted and won't be readable on your computer.
Also, there are a bunch of counterfeit cards for sale these days. They work, sort-of. They're 4-gig cards modified to report a higher capacity. Once you put too much data on them, the filesystem can get corrupted.
Even if the cards are good, I've had nothing but issues with adoptable storage. I've only used it on a Moto E with 4 gigs of storage. My Moto X uses portable storage, and I've had no issues.
Adoptable storage for the most part had been a failure in my opinion. Some OEMs disable the function, such as Samsung. If you read around, you see many bad stories about the storage as well. Granted some people like it, but it is just not worth it all things considered. Personally, I think the original concept of saving select apps to the sd card worked better. If the app performance was poor, you could move it to internal. Would love to see that option come back.
Sent from mTalk
I used apptosd for years and it worked well.
So I guess next time I should just get a phone with more internal memory. I figured since I already had memory cards and adoptable storage was an option I could just save some cash and get the 16gb phone. I'm still hoping someone shares a positive story and what memory card they are using with success.
Me and my wife both had our 1st cards ruined in the Moto x pure. I don't remember the brand but since off eBay they could have easily been knockoffs. Wasn't using them as addoptive storage. I am now. PC would not recognize them. There are programs that I have had success with for free on PC to retrieve your photos from the cards even though the PC doesn't read them
affiatic said:
Me and my wife both had our 1st cards ruined in the Moto x pure. I don't remember the brand but since off eBay they could have easily been knockoffs. Wasn't using them as addoptive storage. I am now. PC would not recognize them. There are programs that I have had success with for free on PC to retrieve your photos from the cards even though the PC doesn't read them
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In my personal preference, I back up my photos to a PC monthly. But just to be sure I lose very little should my card go south, I use Google photos to backup while charging and on wifi. The unlimited option for photos means a slight reduction in size, but I also have peace of mind that I will still have them.
I was using adoptable storage for about a year in my old moto e lte without issues (sandisk 16gb), it was working great although I wasn't moving any apps to card. One time when I messed something up (definitely it was my fault) I couldn't acces my card but all I had to do was to put card into sd card reader and format it using partition wizard (you have to delete partitions that windows can't acces on it's own).
I have noticed my phone seems a bit slower launching some apps since I started adopted storage. Maybe an extra second to launch so it doesn't bother me. I am using am emtec u1 class 10 gold card. I don't know anything about the brand and am almost embarrassed to admit that I bought it at the hardware store lol
I have been using a SanDisk Ultra 32gb for 6 months without issue on stock non- rooted ROM. I don't take many pictures so no big deal for me if it gets corrupted. Amazon has the SanDisk 64gb Ultra for $16.00. Sadly I have the 16gb Pure.
I have the 16gb version with a Sandisk UHC-1 64gb as adoptable storage for about 2 months. Haven't had any issues so far and I moved the majority of my apps to the sd. Also haven't noticed any significant delay or performance impact either. I'm a casual user, no games or heavy demanding apps installed.

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