Testing for "fake" memory cards - General Accessories

Ok looking at a 64gb card on craigslist (sandisk) I need to be able to TEST this card on the spot from my laptop to see if its good.
my usually program h2testw is useless. it tests the old way by copying files to fill the card and verifying. incase you don't want to bother thats 144 minutes to gets a 64gb card.
not only will my batter not last that long but I doubt he would WAIT that long for me to test.
even if I just test to 32gb point (not likely to be a fake at that point) its still over an hour.
There has to be a faster way to test this card.
is there a program out their that writes a small file to random areas of the memory card ?? for example right a file to the card "as if" the card already has 50gb of data on it.
is that "area" valid? if so the card is likely valid and would only take seconds to test
what about rapidly making a "fake" file to consume 40 or 50gig of "space" so the next file I write (my test file picture for example) would be higher up confirming if its real or not
that has to be a more reasonable way to tests these things than to wait 2.5 hours to read write to the whole stinking card.
any help would be greatly apprecaited.

I used to use http://www.mynikko.com/dummy/ (Dummy File Creator). If you don't enable random data it seems to be pretty fast. I made a 16GB file in like 10 min. but that was to an internal SSD and your mileage may very. I would try it out first before you do it for real.

sadly that is doing almost exactly what h2testw does it actually writing a file to the disk so it will take the same 144 minutes (your SSD is just a lot faster than a usb stick)

nerys71 said:
sadly that is doing almost exactly what h2testw does it actually writing a file to the disk so it will take the same 144 minutes (your SSD is just a lot faster than a usb stick)
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Sorry about that. Here are some tips that may help:
Testing:
Most of these instructions apply to SD cards but can be used for other memory cards and USB drives as well.
1. If the card has a write prevention switch (as all SD cards do) put it in the Read only position and try to write to the card (if you can then it is a fake).
2. Reformat the card in you camera (if the card has an overstated capacity this will either fail or format the card with the actual amount of available space).
3. Copy a series of files to the card. Remember that most SD cards are formatted with a FAT file structure so files over 2GB can't be saved to them anyway. Try a series of 100mb files (recorded audio from Windows Sound Recorder found in the Accessories menu will do the trick, just record silence for ten minutes (no microphone needed)).
4. Copy a series of small files to the card :try text files or your temporary internet files. Do this until the card is full. (Testing capacity and the Master File Table).
5. If it is an SD card or similar put it in you camera and use the Video Record function :record for 30 minutes (or as long as you can) then wait for the camera to save the file. If the camera can't save the file and tells you the card is invalid then again you have a dud on your hands)
6. Attempt to open a large file directly from the card :a Photoshop file or even one of the silent audio files you recorded earlier will do the trick. You can usually connect you camera to you computer in Mass Storage mode to test this.
7. Use a program such as SiSoftware Sandra Lite (Free) to test the read and write speeds of the card. This software has built in benchmarks so you can compare the results to what you should be getting. This requires either a card reader or you camera to be connected in Mass Storage Mode.
8. Use KillDisk to view the contents of the card. Run the disk wipe on the SD card (which may fail with fake capacity cards) then view the contents again. When you scroll through the sectors move towards the end and look for changes that are out of place (the first 100 or so entries are the MFT and will be full of gibberish, then it should be all zeros :if it is 99 instead of 00 you have a card with overstated capacity).
9. Finally before you complain to the seller check that you camera can actually read the card :by this I mean many cameras can not handle cards with a capacity of over 512mb, just because you found someone on the internet whose camera could doesn't mean yours will so check the manual (different ROM versions for different countries can impact this :Canon in the USA and Canon in Australia often have subtle differences in the ROM image).
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EDIT: Oh and I got the tips from this guide --> http://reviews.ebay.com.au/How-to-t...d-USB-Drive-CF-MMC-Etc?ugid=10000000001287720
For files I would use Dummy file maker to make say 4 150MB file ahead of time and copy them over when you are there. The two times I had fake Cards they wouldn't write properly and the files would be gone after removal. Once formatted it showed the 16GB was only 8GB. So number 1 and 2 above are what I would try for sure.

,Using dd you can direct write to bytes... eg.. dd if=myFile of=/dev/sdb1 seek=32000000000000 which will skip the number of bytes in the seek field, then write your file to /dev/sdb1. If you pull that back off your card using the "skip=32000......" you can verify that with a hex editor.
Hope that was helpful
see "man dd" for more.

can you clarify this DD thing? what is it? the plan ideally is to copy a picture to spaces on the card and then "read" the images back off to verify they are good.
how do I use this DD to do that and where do I get it?

nerys71 said:
can you clarify this DD thing? what is it? the plan ideally is to copy a picture to spaces on the card and then "read" the images back off to verify they are good.
how do I use this DD to do that and where do I get it?
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Its a linux command. You can write to any block on any disk from a file and read from any block on any disk to a file. Get linux here: http://ubuntu.com/download

By far the most efficient way to test for fake memory cards is to run the H2 burn in test. H2 is basically standard testing software for the flash memory industry in China and Taiwan. The program writes data into the flash memory up to full capacity, and then verifies all of said data. If the program fails, then most likely the flash memory has been set at a fake capacity (for example, flash memory was originally 512MB but set at a fake capacity of 2GB and sold as 2GB) or the flash memory is of low quality, with many bad blocks/sectors. Basically if the flash memory product does not pass H2, then the product is not a reliable storage solution. For a video tutorial on how to use H2 as well as more info on the program check out http://www.chinaelectronicsinsider.com/technical/how-test-fake-flash-memory

Problem is such software is utterly useless to protect oneself with.
once you BUY the flash drive there is no give backs. its yours.
this software takes LITERALLY HOURS (3.4 hours for the 64gb flash drive)
NO seller is going to stand their for 3.4 hours while I test the flash drive.
what we need is a random smaller test set.
write a file verify it. write another at 1gb mark test it write another at the 2gb mark test it 4gb 5gb etc.. ie something I can do in 5 minutes.

Random smaller tests while more practical are not at all efficient for larger capacity memory drives. If a buyer is intending on using the full capacity, better to test it all. A 10GB drive can be set at 16GB, and if a buyer only did a successful 5 minute test of say up to 8GB, then would still have been duped and will be missing out on an extra 6GB of storage. Also, with some upgradeable USB controllers, once the storage has been used past the actual capacity and begins having errors, often times the drive will become problematic afterwards and the actual capacity is not even reliable for storage. In these cases, the only way to regain the actual storage capacity would involve running a low level format using the corresponding MP tool, which is a technical process beyond the scope of the typical flash memory user.

problem is the test itself is literally USELESS for protecting oneself once you get into truly large capacities like 16gb 32gb and 64gb
it would take almost 3 hours to fully test a 64gb card.
NO ONE and I mean NO ONE and justifiably so is going to stand their while you run a 3 hours test on a $50 drive. they just are not going to do it.
what we need is a piece of software that will write 1mb per gb. so write a MB confirm it. then write another mb at the 1gb mark then at the 2gb mark then at the 3gb mark etc.. etc..
while this won't confirm a good or bad memory card IT WILL confirm a "fake" or "real" memory card which is the primary issue at hand.

ChinaElectronicsInsider said:
Random smaller tests while more practical are not at all efficient for larger capacity memory drives. If a buyer is intending on using the full capacity, better to test it all. A 10GB drive can be set at 16GB, and if a buyer only did a successful 5 minute test of say up to 8GB, then would still have been duped and will be missing out on an extra 6GB of storage.
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This is not correct. That software should NOT stop at 8GB, this would be stupid. Let it go the the max capacity, and you're pretty safe.
In most cases (fake drives), you don't have to actually test each and every bit of data, he's right.

Related

Sd card upgrade problem

So I recently ordered a 16 GB micro sd card off Amazon since I've been using my MT4G for music and leaving my ipod at home, and wanted to bump up my capacity. Anyway, it's a Patriot Class 4 card, and I'm having some trouble. I inserted it into the phone, and selected 'format sd card' from settings, did it, but when I mounted sd card via usb to transfer files, it was going SO SLOW. Like, 50 minutes to transfer 200 MB or so. So...my question is, is there something I'm supposed to have done and didn't do? Or is it a bad card, or what? Because my 8 GB stock card was only class 4, and was MUCH faster.
Thanks for any insight!
Try using windows to format it using the default allocation size. I have seen some talk in the "32gig class 10" thread that doing this really sped up the transfer speeds of the cards over what you get when letting the phone format it.
Good luck.
rrrjr said:
Try using windows to format it using the default allocation size. I have seen some talk in the "32gig class 10" thread that doing this really sped up the transfer speeds of the cards over what you get when letting the phone format it.
Good luck.
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Thanks for the help. I'm really unsure about what to do, been searching and can't really figure out if the card is bad or if I haven't formatted it correctly. Unfortunately, I'm on a macbook, so don't use Windows. Usually, there is a mac equivalent for anything windows can do, so I'll see what my options are. It's just driving me crazy, because it'll take DAYS to transfer all my music lol. Not sure why no one else has jumped in to help me out. Either no one knows anything about it, or it's such an obvious answer that I'm embarrassing myself. Either way, I'd love to hear which it is so I know how f-ed I am.
sunsean said:
Thanks for the help. I'm really unsure about what to do, been searching and can't really figure out if the card is bad or if I haven't formatted it correctly. Unfortunately, I'm on a macbook, so don't use Windows. Usually, there is a mac equivalent for anything windows can do, so I'll see what my options are. It's just driving me crazy, because it'll take DAYS to transfer all my music lol. Not sure why no one else has jumped in to help me out. Either no one knows anything about it, or it's such an obvious answer that I'm embarrassing myself. Either way, I'd love to hear which it is so I know how f-ed I am.
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try doing a full format instead of a quick format with windows.
http://www.amazon.com/gp/product/B00413PF6G
I ordered that card last week and had the same issue you had. Max of like 2mbs transfer whether I mounted it through the MyTouch 4G USB, Included adapter or my USB card reader. I tried the panasonic formatting tool and half the time it would kill my card reader or just fail. Messed with it for like 4 days and couldn't find anything that helped. Must be a incompatibility, It was returned and I just received a Transcend 16gb Class 4. Transfer average 4-6mb depending if it's a large file or tons of smaller files.
sunsean said:
So I recently ordered a 16 GB micro sd card off Amazon since I've been using my MT4G for music and leaving my ipod at home, and wanted to bump up my capacity. Anyway, it's a Patriot Class 4 card, and I'm having some trouble. I inserted it into the phone, and selected 'format sd card' from settings, did it, but when I mounted sd card via usb to transfer files, it was going SO SLOW. Like, 50 minutes to transfer 200 MB or so. So...my question is, is there something I'm supposed to have done and didn't do? Or is it a bad card, or what? Because my 8 GB stock card was only class 4, and was MUCH faster.
Thanks for any insight!
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I've done alot of testing for sd cards and android because i had similar issues with my patriot SD card and I've found that a 32K cluster sizes gives great speeds. Only time you really need smaller is if u are using a actual hard disk or if your average file size are around 3-10 Kb but with mp3 and most other files being around 3-10Mb you lose alot of and speed as a result of having smaller clusters.
Now say u use maverick maps and have cached over several million tiles all of which are 1kb each then use a smaller cluster size to save space or those millions of 1k tiles could fill a entire 8 gig card as opposed to actual size of 700Mb but it will take a horrendously long time to transfer to those card. so its a trade off.
So bottom line use a 32k allocation table. It will give you good optimization of space and speed.
I have also found that formatting the sd card with the phone rather than with my mac also causes slow transfer rates so I format all my sd cards on my mac (or pc) before putting them in my phone. Transfer rates are much quicker that way.
I have Kingston 16gb class 10 and I would only average 1-2mb/s when copying files over.
I reformatted in via Windows to a few different cluster sizes and did some testing with my phone.
For my usage I went with a 64k cluster size. My copy speeds to the card average 13mb/s. I don't really store small files on the card so I'm not worried about excessive space use right now.

What is difference in SD card classes

Ok I have an Acer Iconia a500, currently I have only a 6gb card installed. Now when i look online i see that the micro sd cards are rated by classes. What is that for?
I need a 32gb for my Iconia. I do alot of school work from it. Just want the storage for my school books. any way, can someone break it down for me?
Thank You
Sent from my A500 using XDA Premium App
The SD card's class represents the least write speed.
Class 2: 2MB/s
class 4 : 4MB/s
and so on..
I think it's so you can copy and read files faster
ok, got it, higher the class the faster the write speed.
One more thing, now, the higher the class, does anyone know if they have more problems? like with crashing, or having to be re formatted often?
primus123 said:
ok, got it, higher the class the faster the write speed.
One more thing, now, the higher the class, does anyone know if they have more problems? like with crashing, or having to be re formatted often?
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Nope, problems/crashing etc would be down to quality not size.
Also faster write speed doesn't mean it performs faster when used as a "hard drive" like in a phone, so lower class ones can outperform higher, but you'd have to try them to see.
It's because they're designed with things like cameras in mind, where getting the image saved quickly so you can take another one is the most important thing.
In a mobile phone/tablet they're accessed more randomly, and that is where it's been found that some higher class cards don't perform as well.
Mini SD cards, so tiny for my big hands.
Those mini sd cards are SOOOOO small, I've lost a few over the past 3 years.
so which one should i get for my iconia
androidappdeveloper said:
Those mini sd cards are SOOOOO small, I've lost a few over the past 3 years.
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Tell me about it, I just reordered one after giving up the search on my current one. It's not completely lost, I'll probably come across it one day when re-organizing the room.
I keep mine in those Sd card cases and shove it in a crown royal bag....
You're probably fine with a Class 2 microSD card, as you won't have large files (or a large amount of small files) written in a short time.
Write speeds are generally the most important feature of a memory card. Write speeds determine the amount of time it takes to transfer the data, the moment you for example, click the button on your camera to ask the camera to take the image. You will probably remember that back in the early days of SD memory cards, there was an awful amount of lag time on cards, i.e from when you heard the click on the button (when you asked your camera to take the picture), to when you heard the double click (which is normally when the image has been written to the card).
Read speeds indicate the amount of time it takes for a card to transfer the data to a PC/Laptop. I.e the amount of time it takes to read the data off the card. Generally the higher the capacity of the card, this will naturally give a higher write speed. So if you have a 32GB card full of data and its only a class 2, it would take much longer than a 32GB card thats class 10, to send all the info to your pc etc.
Class 10 cards are recommended for HD video, or minimum class 6 really. You will probably find a 16GB class 4 card for example, will not work on say a Samsung HD Camcorder. It will maybe store only 1 minute of video, as for some reason the HD cannot write the data to the card fast enough it would seem.
Anyone ever lose a mini SDK card?
Plus your SD class is high, more it is fast...
jerryfranks said:
Anyone ever lose a mini SDK card?
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Yes, almost (I found it after w hile), bloody spring so strong it shot across the room!
Pity there's not some little leatherette folder with tiny slots for a few MicroSD cards, I'd buy one!.
iloveapple said:
Write speeds are generally the most important feature of a memory card. Write speeds determine the amount of time it takes to transfer the data, the moment you for example, click the button on your camera to ask the camera to take the image. You will probably remember that back in the early days of SD memory cards, there was an awful amount of lag time on cards, i.e from when you heard the click on the button (when you asked your camera to take the picture), to when you heard the double click (which is normally when the image has been written to the card).
Read speeds indicate the amount of time it takes for a card to transfer the data to a PC/Laptop. I.e the amount of time it takes to read the data off the card. Generally the higher the capacity of the card, this will naturally give a higher write speed. So if you have a 32GB card full of data and its only a class 2, it would take much longer than a 32GB card thats class 10, to send all the info to your pc etc.
Class 10 cards are recommended for HD video, or minimum class 6 really. You will probably find a 16GB class 4 card for example, will not work on say a Samsung HD Camcorder. It will maybe store only 1 minute of video, as for some reason the HD cannot write the data to the card fast enough it would seem.
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Very helpfully post,thanks.
Sent from my GT-I9000 using Tapatalk
Try to continue promoting of you site.
Hi speed cards are more efficient at presenting and recording. It's really up to you. If you buy the cheaper version and it doesn't present at the speed you think it should you'll have answered your own question.
You guys have it mostly right. The higher class your card is the faster it can write a file to its memory, the trade off is that the higher class cards have slower rapid access speeds, something to do with how it prepares files before writing. Basically, a class 10 will write a 1GB file faster, but if you try to write 15 3MB files quickly your performance will suffer. For something like a phone I recommend a class 4 or 6. For cameras I'd go higher (I don't know a whole lot about cameras).
seems like its good

[Q] Quick question on stock sd card size

Hi Guys,
I am having a problem loading some of the new 3.0 roms that are out now...and I was wondering if this might be the issue.
I have the stock SDCARD that came with my evo4g (8gb)...but when I insert it into a card holder in my PC, it only comes up as 5.67gb total. Even when I try to format it...it only says 5.67gb.
Is that normal?
Thanks!
The biggest problem with our SD cards is the type of card it is. our "class" is really low. they SHOULD have put real cards in our phones like class 10. I personally did test both on read and write speeds while in the phone and the class 10 was MUCH faster than the stock. get a 16GB.. btw, it'll never reach 8gb, or 16gb. it'll always be less.
runcool said:
The biggest problem with our SD cards is the type of card it is. our "class" is really low. they SHOULD have put real cards in our phones like class 10. I personally did test both on read and write speeds while in the phone and the class 10 was MUCH faster than the stock. get a 16GB.. btw, it'll never reach 8gb, or 16gb. it'll always be less.
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Yes, I understand all that...class, etc...and I know that after formatting it will not be 8gb due to 1024 equals 1gb...but 8gb down to 5.67gb? That seems a little low right?
no. because as soon as you format it and put it back onto the evo... it re-adds its stuff to the sdcard. and also.... the math isn't right. you forgot about the partition table which takes even more away. Depending on how you format it if it is fat32, NTFS, WinFS*I REALLY WISH MICROSOFT WOULD DO THIS! LOL* well, the size of the disk will change. well, I mean the amount you can use. oh and also the unit size can change it.
Do you have an ext partition on the card (for apps2sd)? That's the most likely place the extra space would go. The space you're seeing reported in Windows is the FAT32 partition.
If you don't think you have one, have you ever had one? If you thought you had gotten rid of it, it's also possible you didn't really get rid of it, depending on what you did. Just reformatting it in Windows won't get rid of it.
An 8GB (marketing) card will normally have about 7.45 GB of actual space. So you're missing roughly 1.75 GB.

[Q] swap partition on eeprom

Can I use a part of the 1.5gb of rom in the desire z/ G2 to make a swap partition?!
It's dangerous to the eeprom life?
Performance would be much better than microSD I think..
nagash91 said:
Can I use a part of the 1.5gb of rom in the desire z/ G2 to make a swap partition?!
It's dangerous to the eeprom life?
Performance would be much better than microSD I think..
Click to expand...
Click to collapse
As far as I know such a thing does not exist, though like you suggested it may be dangerous due to data corruption (though if properly partitioned you can fix it)
On the other hand using microSD for swap has been nothing but good for me, it has significantly improved speed, cause it is only a couple hundred Mbs of data on the swap partition so it can transfer quickly and smoothly, also it's only used when absolutely necessary.
What class microSD do you have?
noneabove said:
As far as I know such a thing does not exist, though like you suggested it may be dangerous due to data corruption (though if properly partitioned you can fix it)
On the other hand using microSD for swap has been nothing but good for me, it has significantly improved speed, cause it is only a couple hundred Mbs of data on the swap partition so it can transfer quickly and smoothly, also it's only used when absolutely necessary.
What class microSD do you have?
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I have class 6 microSD, but I think it's fake (trasfering speed is 2 - 3 mbps).
I think that the most important propriety for a good swap is the access time.. but the problem is that I can't find a site where I can see the access time of microSD tested by someone.
I want to buy a 32gb microSD class 10 or class 6, but if I can't find the access time..
I find that mustang and samsung microSD class 10 are cheap..
BTW I would love to know if I can make the swap file in /data or in /temp.
Access time in ROM is a lot faster that in microSD.
I don't think that rom can be damaged by a lot of writing, so why I can't use that support for swap. It would not faster as RAM, but absolutely faster than microSD class 10.
PS: I tried to make swap file on microSD with swapper2 and cyanomod 7.1. I get an error on swapon.. does cyanomod kernel support swap!? Thanks
nagash91 said:
I have class 6 microSD, but I think it's fake (trasfering speed is 2 - 3 mbps).
I think that the most important propriety for a good swap is the access time.. but the problem is that I can't find a site where I can see the access time of microSD tested by someone.
I want to buy a 32gb microSD class 10 or class 6, but if I can't find the access time..
I find that mustang and samsung microSD class 10 are cheap..
BTW I would love to know if I can make the swap file in /data or in /temp.
Access time in ROM is a lot faster that in microSD.
I don't think that rom can be damaged by a lot of writing, so why I can't use that support for swap. It would not faster as RAM, but absolutely faster than microSD class 10.
PS: I tried to make swap file on microSD with swapper2 and cyanomod 7.1. I get an error on swapon.. does cyanomod kernel support swap!? Thanks
Click to expand...
Click to collapse
It should but for the life of me I have no idea why, I'm assuming you were just testing it out but if not, swap is NOT needed for most AOSP ROMs and could in fact slow down your phone and kill your battery.
Also swapper is not the most recommended way of doing it as if something gets corrupted there goes your whole SD Card.. :/ safer to make a partition on it.
As for speeds, the speed from the phone to the SD Card compared to the SD Card to the computer (through the phone/data cable) will vary significantly, and so will read/write times. For me through my phone I can read at around 15 Mb/s (class 10) and write at 3 Mb/s, but if I take it out and put it in a Micro SD Card converter then I can write at speeds of at least 10 Mb/s.
As for access time.. If I'm not mistaken, after RAM, SD storage is one of the fastest digital reading and writing in terms of access time. I have noticed no discrepancies in speed where it would have to read or write to my SD Card's swap so I think that'll be okay.
As for finding out if the ROM can be used... Quite frankly, not a clue, but I would tread lightly there if you want to start experimenting
i am thinking about the same question... Maybe it 's to be safe to use your sd card and make a swap partition. However i am on miui which doesn't require a swap so i don't have to use a swap partition. And the sense 3.5 and 3.0 are to slow and to heavy for me for the old desire z with a such amount of ram memory ..

Anyone using Adoptable Storage? All my old cards are too slow...

My cards say class 10 and 50 MB/sec. Android says they are too slow.
How fast of a one do I need?
I don't want to buy a 128 card just to find out I need root to tweak the buffer or that it doesn't work that well.
I posted a screenshot. Adoptable is the same as storage, sdcard, 3dots, format as internal
From my understanding there aren't any cards at the moment quick enough to serve the role efficiently. Just use it as an external storage until faster cards become available.
I was about to make a post concerning the best Micro SD cards do Moto Z Play, thanks for bringing that up!
I have a 128gb Samsung EVO micro sd, class 10, but it's 48mb/s and I got the same message you did, saying the card isn't fast enough and that the overall apps and system speeds could be slower.
I thought class 10 micro sd's were among the fastest and the Moto Z Play wouldn't have any trouble using it as an extension of it's internal storage, but as a matter of fact, there are indeed faster micro sds. After researching a little bit, I found Samsung EVOs with 80mb/s transfer speeds (the 48mb/s are colored orange, as the 80mb/s are little green ones):
I still haven't bought one, but I browsed through some forums and videos and people with the same problem said 80mb/s seems to do the trick and they didn't get any message complaining about the micro sd speed.
f you want even faster micro sds, try the Sandisk Extreme, with speeds up to 90mb/s:
I have to get a faster micro SD anyway, as soon as i do i'll post here my experience with it.
Hope this helps,
Cheers!
While running the adopted 50 MB card AFT fails on most copy operations.
I am afraid ? that 2 times faster may not be enough for the already challenged ATF, buggy as it is already.
aviwdoowks said:
My cards say class 10 and 50 MB/sec. Android says they are too slow.
How fast of a one do I need?
I don't want to buy a 128 card just to find out I need root to tweak the buffer or that it doesn't work that well.
I posted a screenshot. Adoptable is the same as storage, sdcard, 3dots, format as internal
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How can you live with all those notifications? My OCD prevents me from seeing so many icons in the notification bar
Jorgeprdz said:
How can you live with all those notifications? My OCD prevents me from seeing so many icons in the notification bar
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Just 12 not including the statusbar pro, which I cannot live without.
Better?
Using this card with no issues. Formatted as internal storage. SanDisk Extreme 128GB microSDXC UHS-I Card with Adapter (SDSQXVF-128G-GN6MA). Got it at Amazon for 60 bucks. It is quite speedy as far as I can tell.
geomun said:
Using this card with no issues. Formatted as internal storage. SanDisk Extreme 128GB microSDXC UHS-I Card with Adapter (SDSQXVF-128G-GN6MA). Got it at Amazon for 60 bucks. It is quite speedy as far as I can tell.
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Thanks
Do you play large music files (flac or dsf) ?
I do and getting them on such a card is via my Mac using Android File Transfer or from a SATA drive using OTG. On KK AFT did not work on large transfers. It has not been updated in many years. The OTG / drive method should be reliable but not with my 50 mb, slow card.
To boot, on the negative side of using adopted cards, you cannot pull the card in the case of a data wipe.
I will be abandoning this method.
Thanks to all for sharing!
aviwdoowks said:
Thanks
Do you play large music files (flac or dsf) ?
I do and getting them on such a card is via my Mac using Android File Transfer or from a SATA drive using OTG. On KK AFT did not work on large transfers. It has not been updated in many years. The OTG / drive method should be reliable but not with my 50 mb, slow card.
To boot, on the negative side of using adopted cards, you cannot pull the card in the case of a data wipe.
I will be abandoning this method.
Thanks to all for sharing!
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In my use case, adaptable storage doesn't make much sense on devices with 32gb or more of internal storage. Unless you really need that much space for app installs, the limitations outweigh the benefits. My typical app load is around 8 to 10gb, so I have somewhere around another 10 available on the MZP, as long as I pull all my media into an external card. This way I know all my apps are using fast internal storage, and I don't have to wonder if a widget is available or not. And I can pull the card and use it in a PC or other device.
Now my Moto E 2 (with 8gb onboard) is a different story. But I use a hybrid card in that - 20gb as adopted and the other 40 as external. May consider this as an option when I get around to getting a card for the MZP
I took a 32gb card and combined it. It warned me too. After reading up on the function, Android evaluates what to put where. Having the card separate made it less useful only good for photos and video really. This way app data can be buffered there. Things like cloud services buffer files internally. Netflix now uses SD but that was an issue too.
Bought a new micro SD for the Moto Z Play and it works perfectly with no warnings about it's speed being slow!
It's a Samsung PRO 64 GB microSDXC Card, with 90 MB/s reading speed and 80 MB/s writing speed.
As you insert the card and format it to be part of the phone's internal storage, the system doesn't complain about the card being too slow or that it'll affect the overall app and system speed.
It's perfectly reliable for installing apps outside the device storage and keep the desired speed and all that good stuff.
Cheers! =)
arides said:
It's perfectly reliable for installing apps outside the device storage and keep the desired speed and all that good stuff.
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It's a microSD. For these kind of cards it's quite usual that there is some percentage that fail after some time. Some cards only last for months, other years. It seems to be independent of manufacturer.
My personal advice: Whatever you store on a micro SD card, have a backup. I'd rather not use it for internal storage if it's not necessary to do so. It's slower than internal memory anyway. This is a personal opinion, you'll have or see different opinions for sure.
tag68 said:
It's a microSD. For these kind of cards it's quite usual that there is some percentage that fail after some time. Some cards only last for months, other years. It seems to be independent of manufacturer.
My personal advice: Whatever you store on a micro SD card, have a backup. I'd rather not use it for internal storage if it's not necessary to do so. It's slower than internal memory anyway. This is a personal opinion, you'll have or see different opinions for sure.
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I agree but for me having a Mac I never want to use ATF it is buggy.
So I am left to getting large music files from an external drive over OTG.
It is so much more reliable to drop the file right to the SD and move the card to the phone.
If the adopted card fails , you need a data wipe or an update screws it up, you have a bad phone day!
aviwdoowks said:
I agree but for me having a Mac I never want to use ATF it is buggy.
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Me too!
I'm allowing the access via Windows filesharing (still OSX 10.6.8), and then access some drive on the computer using LAN plugin of Total Commander for Android. Works like a charm! It is a bit slower, but very convenient not having the need to put card or, put card in etc.
tag68 said:
It's a microSD. For these kind of cards it's quite usual that there is some percentage that fail after some time. Some cards only last for months, other years. It seems to be independent of manufacturer.
My personal advice: Whatever you store on a micro SD card, have a backup. I'd rather not use it for internal storage if it's not necessary to do so. It's slower than internal memory anyway. This is a personal opinion, you'll have or see different opinions for sure.
Click to expand...
Click to collapse
tag68 said:
Me too!
I'm allowing the access via Windows filesharing (still OSX 10.6.8), and then access some drive on the computer using LAN plugin of Total Commander for Android. Works like a charm! It is a bit slower, but very convenient not having the need to put card or, put card in etc.
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Is that only on snow?
I do have a snow partition for older programs.
So do I need to buy FC and the plugin?
Tell me more please, cause I hate ATF soooo much. Why does Android drop it's ball like this?
aviwdoowks said:
Is that only on snow?
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I'm quite sure that file sharing via smb: is available on nearly all versions of Windows and OSX.
You may start Windows file sharing in network settings of OSX. Then you can give access to some drive in Finder.
If you google a bit, you will find help I guess.
aviwdoowks said:
So do I need to buy FC and the plugin?
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Buy? Total Commander is free of cost, including all necessary plugins. For Windows file sharing (smb) you need the TC LAN plugin.
Edit: By "a bit slower" I meant because it usually is being used via WLAN in your intranet
Just wanted to post back here - finally got around to picking up an sd card for the MZP. Went with Samsung evo 128gb, $40 on Amazon. Since it's got plenty of space, I decided to go the same route that I did with the moto e, and do hybrid storage. Formatted 25% adopted and 75% external. Gives me an additional 30gb internal space and 90gb external storage.
Device sees the storage space fine. A couple apps I've messed with so far (Netflix and Google play music) can save to external fine, but don't recognize the additional available space in "internal", or at last don't report it as available.
I don't plan to move any apps that I use frequently or anything that I use widgets from to adopted, as the advertised max read speed is only 20mb/s. Haven't actually tested yet. But I did move a couple low use apps over. Reported storage space on both internal and adopted updated correctly (an issue I've had in the past).
So far, so good.

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