I recently purchased this sd card from him and it was counterfeit: http://www.ebay.com/itm/310853963580
He sold me a class 4 4gb sd card instead of a class 10 64gb sd card. Here is the email I sent him that contains proof and things to look out for if you ever suspect your sd card is a counterfeit:
I have reason to believe the Samsung 64gb micro sd card that you sold me is counterfeit.
I first had a hunch this item was counterfeit when I copied 45gb of data to the card two separate times just to have it all erased/corrupted immediately after putting it in my phone.
After this happened, I decided to download an Android app called sd insight to see if the card was fake or not. These are the results I received from running the app: http://pastebin.com/RfG0JREq
As you can see in that log file, the manufacturer, product name, revision number, etc are all null. This led me to believe that the card you sold me was certainly counterfeit. If this was a legitimate card the entries would have reported things such as SAMSUNG and MB-MGCGB/AM. (The supposed make and model of this sd card) Additionally, there would be at least 1 revision to this card to counter the data corruption issues that was occurring to S3 and S4 smart phones in 2013 since it was manufactured (supposedly) in January of 2014.
In order to be sure for certain before I contacted you with this claim, I used a program called H2testw. H2testw is a program that writes data files to your sd card and reads them off until every sector has been tested. If corruption occurs you have an sd card error. Additionally, you can see the actual size of the sd card and many other cool things. Here is the log file that the program returned to me: http://pastebin.com/X8e0R6TM
As you can see, this card is actually only 3.5GB instead of 62.4 like reported by Windows Explorer. This leads me to believe this card has been hacked to report the incorrect capacity size. 58.8GB of data was lost because it was written to sectors which actually don't exist... This is proven by the hex address given by the location of the first error.
As you can see, it expects to encounter 0x00000000c65db000 but instead encounters 0x0000000000000000 when trying to copy data to that specific location. This is because that location doesn't exist....
Finally, you can see that the writing speed is only 3.8mb/s instead of 7mb/s and the reading speed is only 6.64mb/s instead of 24mb/s. This is another clear sign of a fraudulent item.
You sold me a class 4 3.5GB sd card in disguise of a class 10 64gb sd card. I would like for this item to be replaced with a legitimate Samsung 64gb class 10 micro sd card at no extra expense to me. This includes reimbursing my return shipping fees if you desire the item to be returned to you before continuing.
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Additionally, here are some pictures I took for the claim: http://imgur.com/a/jJrcJ
Also, here are the tools that I used to detect this counterfeit:
https://play.google.com/store/apps/details?id=com.humanlogic.sdi&hl=en
http://www.softpedia.com/get/System/System-Miscellaneous/H2testw.shtml
I bought a counterfeit 32gb sd card once on ebay... made a report with paypal. Sent my emails with the seller to paypal...they tried emailing the seller also. No response. I received my money back in a few days. No sweat. I never buy anything without paypal.
I have found that buying sdcards on eBay is a risky endeavor. Cavieat emptor....let the buyer beware
caseyatbt said:
I have found that buying sdcards on eBay is a risky endeavor. Cavieat emptor....let the buyer beware
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This. If it looks to good to be true, it is. You will never see a real Samsung 64gb card for $25.
Sent from my SM-N900T using Tapatalk
thanks for posting
Related
I just picked up a 32GB Kingston Micro SD Card. My Macbook reads it but says I don't have write permissions. The card is formatted in MS-DOS (FAT32). I can't figure out how to edit the permissions so I can add files so I can root and flash my Galaxy S2.
EDIT: Wife failed to mention that she slide the "lock" option down! Sorry. MODS can close.
Next thing, test every sector especially if you bought it off ebay. Ebay sells lots of fake kingdton 32gb cards especially around the £32 range. Spend £40 for a genuine branded class 10 instead on Amazon. I've been ripped twice, so this tone around,i did the test and returned the card. The fake cards generally report 1gb upon critical test
Sent from my GT-I9100 using xda premium
I wanted to add files larger than 4GB on my card so I formatted the card to exFat through my PC. Then it reads 896KB... So i format it again using my phone and now i see 59.4GB but its of the "generic hierarchical" file system, and I still can't add files larger than 4GB. Is there anything special I need to do to achieve my goal?
JoJo2211 said:
I wanted to add files larger than 4GB on my card so I formatted the card to exFat through my PC. Then it reads 896KB... So i format it again using my phone and now i see 59.4GB but its of the "generic hierarchical" file system, and I still can't add files larger than 4GB. Is there anything special I need to do to achieve my goal?
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Try for formatting the tool SD Formatter. SDXH microsd cards are having specifications, which are not supported on windows format tool. I a similar problem with formatting, but it come out that my san disk sdxh microsd was defect, so I just got a new one from amazon.
smartxda said:
Try for formatting the tool SD Formatter. SDXH microsd cards are having specifications, which are not supported on windows format tool. I a similar problem with formatting, but it come out that my san disk sdxh microsd was defect, so I just got a new one from amazon.
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Didn't work. I suppose mine is also corrupted.
FRAUDE?
JoJo2211 said:
Didn't work. I suppose mine is also corrupted.
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No, your card is not corrupted, it most likely is a fraud.
These fake cards are made in China and sold as if they were 64 GB. The print on it says it is 64 GB, even if you put them in your computer, the computer states that they are that large. Once you start copying data onto them, the copying fails.
I bought one on eBay from a chinese seller. I´m glad I was refunded by PayPal.
There are many fraudulent sellers who selll these fake cards, so beware! These sellers often have a low feedback and disappear from eBay once people start claiming.
This one is a fake as well, I guess. It´s always the same pattern: they sell very cheap cards and these are all fake.:
http://www.ebay.com/itm/64GB-Micro-...717897?pt=PDA_Accessories&hash=item23269d9909
slk-A4 said:
No, your card is not corrupted, it most likely is a fraud.
These fake cards are made in China and sold as if they were 64 GB. The print on it says it is 64 GB, even if you put them in your computer, the computer states that they are that large. Once you start copying data onto them, the copying fails.
I bought one on eBay from a chinese seller. I´m glad I was refunded by PayPal.
There are many fraudulent sellers who selll these fake cards, so beware! These sellers often have a low feedback and disappear from eBay once people start claiming.
This one is a fake as well, I guess. It´s always the same pattern: they sell very cheap cards and these are all fake.:
http://www.ebay.com/itm/64GB-Micro-...717897?pt=PDA_Accessories&hash=item23269d9909
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How can that be a fake? He doesn't say anywhere that he's selling a SANDISK 64GB card.
Because the card is probo a 4gb card formatted to look like a 64gb card. I've been stung in the past by these thieves and now won't use ebay for any memory. Amazon is the best for memory now with their excellent return policy if there are any problems. My first 64gb SanDisk card was defective and they exchanged it with zero trouble.
The best thing to do with memory cards is to test them as soon as you get them. Fill the card to the brim and check the files play. This way you can prove the card isn't a fake.
Sent from my GT-N7100 using Tapatalk 2
I've been having a terrible time with getting my Sprint GS3 (stock running JB) to use my new Sandisk Ultra 64GB microSDXC. According to Samsung's site (http://www.samsung.com/global/galaxys3/specifications.html) the phone is supposed to support 64GB cards. The Sprint manual doesn't have anything about types of cards, and the website just echos the same "up to 64GB" verbiage.
So, I tried taking the original format (exFAT), formatting with the phone (exFAT), and formatting with FAT32 (using EaseUS partition manager), and formatting with Win7 (exFAT). In all cases, when I copy the contents of my original 16GB card over to it, I seem to eventially get a corruption problem. It shows up right away when I try to view the photos with Gallery (gallery only shows a few of the 1000 thumbnails, and then closes itself with no error message). With FAT32 I ended up getting the phone giving a corruption alert requiring a reformat (I never got this alert with the exFAT, just gallery crashing).
I tried getting the data (about 13GB) onto the card by copying the contents from my old 16GB card over on a PC (using a SD-card adapter as well as with a microSD reader). I also tried formatting the card directly on the phone and then copying the data over using a microusb cable. I did check the card on a PC with H2test2 ver 1.4 (commonly referenced). This helps to determine "fake" cards. It writes and then verifies data to the entire card. No issues were reported with the full capacity verified. I got the card from Amazon with Amazon as the supplier (no oddball vendor).
Anyone run into this or have ideas? I was hoping to skip over the 32gb point as I like to keep more photos and movies on there for travel.
Thanks!
It is seemingly a problem with the SanDisk Ultra cards, whatever the technical reasons they don't play well with the phone's host controller.
I have had the same issues as you, and so did a very large amount of people. I resorted to buying a Samsung 64GB Pro card and ever I have not had any problems.
I have heard some people talking that SanDisk cards manufactured (Toshiba is actually the manufacturer of the memory) before December were prone to this problem, but this is only what I've heard but you can search on this lead. You can try to replace it with SanDisk service.
Thanks for the reply. I'll try Sandisk support first but keep looking around on here to see if anyone has run into a similar issue.
Anyone else?
I concur with the theory that Sandisk has a rash of bad cards. In my case it was a 32GB card just konk out in less than a month.
Their customer service was excellent in replacing it though. Good C.S they have but I'll avoid their cards for now.
Hey All,
There are lots of mixed reviews about the support for Galaxy Tab 3 7.0. in terms for micro sd cards compatibility... Is anyone running a 64gb sd with no problems?
I am running a 16gb with no issues at all, however I have cheap 64gb which will not copy the correct data & corrupts most of the time...I believe this is due to being a rubbish quality/copy...
If there is anyone out there that is running a 64gb with no issues, please confirm the spec!
Thanks in anticipation.
The cheap 64GB card is likely counterfeit. It is probably a 16 GB card hacked to appear to be a 64 GB card. This happened to me. Bought a counterfeit Sandisk from an Amazon seller. It looked really, really, real...but I kept having issues and once the subject of counterfeits was brought to my attention, I noticed the packaging said Made in China while the card said Made in Taiwan - Sandisk doesn't make any SD cards in Taiwan. Before I realized that, I bought a cheap class 10 Samsung off of eBay, that was fake too. Buy from a reputable retailer. Google a Windows app called H2testw if you want to confirm whether your SD card is a 64 GB card.
I have a T211 and am using a 64GB card I bought at Fry's. After formatting it inside the tablet, it worked fine, although after I initially transferred ~37GB from my PC directly to the card, I put it in the tab, and from then on my PC recognizes the card as read only. But I can write data to the SD Card as long as it is inside the tab.
are 128gb cards supported?
32GB UHS-1. I can't get mine to work, whether formatted fat32 or ntfs via PC. Tablet 8.4 simply doesn't recognize it.
My older sandisk 32GB class 4 disk works just fine.
Anyone else have issues with the UHS rated cards?
redneckmatt said:
32GB UHS-1. I can't get mine to work, whether formatted fat32 or ntfs via PC. Tablet 8.4 simply doesn't recognize it.
My older sandisk 32GB class 4 disk works just fine.
Anyone else have issues with the UHS rated cards?
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According to SanDisk it should be supported fine
http://pct1.sandisk.com/ProductList.aspx?DeviceID=21309
I would check if it's a counterfeit / fake card usually these are sold on eBay, Aliexpress or even some marketplace sellers on Amazon/wherever, some even leak into the retail sites, they look identical packagewise and design wise (sometimes it might have blury paint job, or typos on the packaging) ...
To check if it's fake there is various software for the pc (like H2TESTW or chkflsh ) that will write all the blocks on the card and tell you if it's fake..
btw I have a Sandisk UHS-1 64GB card and it works fine. so chances are you got either a counterfeit or a dud.
Though you could just have a card that went bad, I have had several SanDisk micro sdcards fail (one just went poof, nothing-dead, the other went to read only mode), my card had a lifetime warranty and SanDisk has been great with sending replacements. (you will need a camera to take a close up, (so you can read the serial number on the back of the card)-if you choose to RMA and it's legit)
My Sandisk UHS-1 MicroSD that works fine on my Tab Pro 8.4.
NTFS, while a Windows favorite, can be problematic with Android devices. exFAT is pretty much standard nowadays (especially now that larger capacity cards are common - not supported by FAT32), although the old reliable FAT32 should work fine for 32GB.
Try formatting exFAT on your PC, or formatting on the tablet.
Otherwise you may have a counterfeit (tons of them on eBay as mentioned in the previous response) or simply a defective card.
Android never even had it listed as a device, so even kicking a format via CLI wasn't an option.
Everything tests ok on the PC, but something clearly isn't right. Back it goes.
Found the SDSDQX-032G-A46A for $20 at BestBuy, as well as the SDSDQX-064G-A46A for $40.
I print them both out from the website and drive to the store - where we pull up the website and the pricing has changed back to $80 & $150.. They wouldn't honor the printouts. What a great company. Google cache still has the original price, but the site changed in the time it took me to drive to the store.
redneckmatt said:
Found the SDSDQX-032G-A46A for $20 at BestBuy, as well as the SDSDQX-064G-A46A for $40.
I print them both out from the website and drive to the store - where we pull up the website and the pricing has changed back to $80 & $150.. They wouldn't honor the printouts. What a great company. Google cache still has the original price, but the site changed in the time it took me to drive to the store.
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try the formatter located here
https://www.sdcard.org/downloads/formatter_4/
are you running an official firmware on the tab pro?
But you are right, even with a bad filesystem it should prompt you to format it - strange, if you have root access you can check dmesg or logcat in terminal to see what's happening when you insert the card.
I did try that formatting utility.
dmesg shows nothing applicable, and logcat does absolutely nothing when that SD is inserted. When putting in my old SD card I get the typical flurry of activity of detecting, mounting, etc.
I bought a Samsung Pro+ 32GB card and that didn't work either. Clean flashed the final CM12 snapshot, still doesn't like either card. Old card (Sandisk class 4) continues to work fine.
Absolutely nothing in logcat for either of the U3 cards. It is as if nothing is being inserted into the tablet at all.
I'm ssh'd into the tablet. No new devices show @ /dev/block with the new cards. Old one has the expected mmcblk1 and mmcblk1p1.
I have Samsung Evo+ 64GB(for model not sure, but Samsung) and it has 95MB/s reading and 90MB/s writing speed and my 8.4 WiFi detected it. But it doesn't fully use those limits(what i want to say is that my SD card has very fast writing speed but when I uploaded 100MB file to the card, it took about 5 seconds to do that) and I don't know is that SD card broken or tablet is bad.,
redneckmatt said:
32GB UHS-1. I can't get mine to work, whether formatted fat32 or ntfs via PC. Tablet 8.4 simply doesn't recognize it.
My older sandisk 32GB class 4 disk works just fine.
Anyone else have issues with the UHS rated cards?
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I had this happen to me, unfortunately the only way you can fix this, is to give it back to Sandisk (RMA), for replacement. Since your current Card is as they say, pining for the fjords. The good news is that SanDisk support their Cards for up to 10 Years. Which meant more (to me.), when I had spent over 60€'s for it. Today however, you can replace this Card for nearly a Tenner. If anything I can only praise SanDisk's RMA Dept. for being both courteous, and prompt. I think I had to wait a day (or so), to get the confirmation oder. And, likely Six weeks or so for the Return. It was like two years ago now. Thankfully this New Card hasn't died on me in that time. That first Card, though dies on me like six months, after I bought it. The Representative I spoke with, mentioned that a bad batch of Cards had managed to get though, at the time, and that it wouldn't be an issue to just send the dead card back for a new Retail Package. MicroSD + FullSD Adapter.
otyg said:
According to SanDisk it should be supported fine
http://pct1.sandisk.com/ProductList.aspx?DeviceID=21309
I would check if it's a counterfeit / fake card usually these are sold on eBay, Aliexpress or even some marketplace sellers on Amazon/wherever, some even leak into the retail sites, they look identical packagewise and design wise (sometimes it might have blury paint job, or typos on the packaging) ...
To check if it's fake there is various software for the pc (like H2TESTW or chkflsh ) that will write all the blocks on the card and tell you if it's fake..
btw I have a Sandisk UHS-1 64GB card and it works fine. so chances are you got either a counterfeit or a dud.
Though you could just have a card that went bad, I have had several SanDisk micro sdcards fail (one just went poof, nothing-dead, the other went to read only mode), my card had a lifetime warranty and SanDisk has been great with sending replacements. (you will need a camera to take a close up, (so you can read the serial number on the back of the card)-if you choose to RMA and it's legit)
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First of I doubt, those Tools would be of very much help, if the Card is in fact now dead. When my card died that was it Windows, Linux Phone, or Phablet the Card was non-existant! However the Card should have a Serial Number printed on the Back. (So break out the magnifying glass!), perhaps the tracking was what took the most time before I finally got confirmation.
Just outta interest has anyone tried to shove a 128GB into the Tab-Pro 8.4 to see if it goes?