Secure Digital (SD) cards are a widely used memory card format used by many technology brands brands in portable electronic devices such as digital cameras.

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Internal SD Card Drive not Returning/Waking up after Sleep/Hibernate

Here is the setup: I have an internal SD card reader in my laptop. It contains a 32GB SD card that contains my research library. Information I use on a regular basis. The problem: When the ...
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4answers
66k views

How do I repartition an SDHC card in Windows?

How do I repartition an SDHC card (4 GB or more)? Do I need third-part tools or Linux (a live CD solution would be OK)? In Windows' Disk Management the option Delete Partition is dimmed out: ...
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30 views

USB flash drives or SD cards with S.M.A.R.T

Do any mainstream manufacturers incorporate Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T.) into their USB flash drives (aka "USB sticks") or SD cards? If not, why not? It can't be ...
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2answers
47 views

How do I put a Micro-SD card into a slot for SD/MMC/SDHC?

An electronic picture frame has a lot for SD/MMC/SDHC. A Micro-SD card came with it and is supposed to go there, but is clearly too small for the slot. How do I insert this card? There is no ...
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1answer
2k views

Create bootable SD card

I have a Toshiba Portege M205 tablet. The hard drive died, so I picked up another one and stuck it in there, with the intent to reinstall Windows XP Tablet. However, this particular computer did not ...
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12 views

After resetting my Linx7/Win10 tablet - can't see MicroSD in Settings/Storage

It has worked before the reset (complete, removed all files). I can see/use the SD card to save files in Explorer, etc., but do not see it in Settings->Storage. Once I format the card/change drive ...
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36 views

Mac Not Able to Read SD Card

I have a microSD that I use in my raspberry pi. I have it plugged into my mac through an adapter and am trying to use it. However I cannot erase any of its contents and it (contents) does not show up ...
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73 views

SD Card disappear from Windows on Macbook Pro after waking up

I have the SD Card for my Macbook Pro running Windows. Every time the laptop goes to sleep and wake up, the SD Card disappear. It only comes back if you restart - I tried install new BootCamp driver, ...
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240 views

What does “the wrong volume is in the drive” mean?

My phone took a bath in the river a few days ago. The phone is dead, but the SD card works still. However it is excruciatingly slow! The average read speed is well under 50kb/s. To copy 32GB of data ...
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26 views

Rescue SDcard spoiled by Android phone

My SD card is dead. It is a sandisk 32GB model (genuine one as I bought it from a well known seller). All I can see is a partition with 32MB total space. I've tried to recreate the partition table in ...
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91 views

ext4 SD card formatted on Linux, and will not show on OSX

I formatted an SD Card as ext4 on my Debian machine. Before I formatted I deleted all partions, created a single partion, and write the changes. I was able to mount the SD card on my Debian box and ...
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2answers
670 views

how do you fix a corrupt microsd card that's is not responding to anything?

My Microsoft Windows 8.1 64-bit computer froze up so I had to shut it down by holding the power button. Then when I restarted I got the Windows 8.1 problem where the computer freezes at personalized ...
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8 views

Enabling DDR in SD/MMC causes problems? CMD 11 gives a response but the voltage switch wont complete

I am trying to enable DDR in sd (spec above 2.0) the procedure in the specifications is as follows Execute CMD0 to make the card idle. Execute CMD8 to enable ask about the voltage requirements ...
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1answer
30 views

wear leveling on SD cards

A well-known SD card producer advertises that his SD cards use wear leveling. If enough space is free on the card, write access is evenly distributed over free memory. But how does the built-in ...
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16 views

Link errors with symlinks

I've moved all the files of ./usr to an external drive /home/Linkados/usr (SD card 8Gb) using $rsync --progress -l -r /usr /home/Linkados/usr Then I created a symbolic link from my SD to my flash ...
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90 views

32GB Sandisk unable to be formatted

I received a Sandisk 32GB microSD from my dad who asked me to format it. Plug it into a USB-based adapter (no write protection switch) and tried to access it on my computer. Problems : right ...
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2answers
39 views

How to test new SD card in Windows?

I purchased a new microSD card and I basically want to test it to ensure it's not corrupted and it's speed is within the specification printed on the packing (Class 10). How can I do that?
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2answers
104 views

How can I retrieve data from a SD Card when photorec doesn't work?

A friend of mine took pictures of a Halloween party with his camera, and when he put the SD card in his computer, some of the pictures went missing. Knowing that I have successfully rescued his HD ...
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1answer
66 views

How do I get my ASUS X401A laptop's SD/ MMC card reader to recognize I have an SD card inserted?

I had bought 2 external SD card readers for my laptop and just today realized I have a 2 -in-1 card reader ( SD/ MMC) on my laptop! But when I tried putting a 16 gb SD card into the slot and pushing ...
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2answers
13k views

SD Card RAID System

Is it possible to setup a RAID system with SD-cards? Of course, the system would work better if all of the cards are exactly the same. If it is possible, can all or most operating systems handle this ...
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43 views

Photos app won't display recent pictures

On my Tablet running Windows 10, the Photos app will now longer display new pictures synced to the SD card of the device. This behavior started in December 2015 - so Pictures from November or earlier ...
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1answer
847 views

“Real” raw access of flash memory cards?

I have a 16GB microSDHC card that apparently was nuked by the phone (a friend's phone, not sure which, but I can find out): while taking pictures, it suddenly could no longer access/recognize the card....
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45 views

SD Card Ignores Formating and file writes

I have a 16 GB Micro SD card from Samsung, and have only had it for about 4 months. I have not used it recently, but now that I have tried to format it, it does not work. On all the tools I have used (...
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2answers
2k views

Recover SDHC card used in an SD card reader

A while ago when SDHC cards were fairly new and all the office computers had only SD card readers, I made a 4 GB Class 6 ADATA SDHC unreadable and unformattable by trying to get it to work in SD card ...
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225 views

Write raw bytes to SD card on Windows

I am working on an embedded systems project in which we need to store some data on an SD card and read it with an FPGA. It would be simplest not to deal with a file system in this case, so I would ...
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1answer
424 views

I can't view my JPEG images in my windows 7

I have a Canon EOS 1100D and Apacer SD card, I transferred my images to my laptop windows 7 by inserting my SD card to my laptop. I can view the other images but the other cannot. It says "Windows ...
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1answer
85 views

64GB SD card missing files but correct size

I have a 64GB Samsung Evo class 10, which suddenly stopped working on my phone; can't mount/detect it. I accessed the card via laptop, which says 28GB used. But when I copied or scanned the files, ...
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1answer
97 views

SD card is titled “RECOVERY” and only has 1GB after using RPi

I was using a Raspberry PI 2 Model B, and I installed NOOBS. I selected and installed Raspbian, and I used my Pi for about 24 hours before I decided to re-install the OS. When I plugged in my micro SD ...
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1answer
545 views

How to resize filesystem for 32GB cards with Odroid-C1

When installing Ubuntu on an Odroid-C1 with a 32GB micro SD card, how do you make it use the entire card? Following the instructions on the Odroid wiki, I was able to get Ubuntu-14.04 running on my ...
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1answer
43 views

Recover data from unreadable SD card [duplicate]

It's an 8GB micro SD card. It was on my Sony Xperia android smartphone, I almost never removed it from the phone. Suddenly about a month ago, the phone displayed a message saying that the card is not ...
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9answers
104k views

How to access an SD card from a virtual machine?

I want to format an SD card from my Linux virtual machine. I have a built-in SD card reader in my laptop. I tried using VirtualBox and VMware Player and installed Ubuntu 10.04 guest. None of them are ...
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58 views

How to troubleshoot slow read/write times from a multifunction printer/scanner's SD card?

I have been trying to help a friend diagnose a problem with their technology. On their WiFi network, they have an Epson WiFi printer/scanner and several Windows 7 SP1 systems. The printer/scanner ...
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3answers
329 views

Is there such a thing as a WORM (write-once-read-many) SD memory card or USB flash drive?

Do you know if exists a write-once-read-many (aka: WORM) USB flash or SD memory? I need an electronic write once memory to meet law requirements for storing sensitive data, and I want an alternative ...
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1answer
29 views

How to know if an SDcard is about to fail?

I have an SDcard that is still working fine for about 8 years now. I am using it for an DSLR camera. I am quite paranoid that it will soon stop working while taking photos of an important event. Are ...
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28 views

no /dev/*, but /sys/bus/mmc device info on damaged SD-Card [duplicate]

A friend gave me a broken SD-card, hoping I might recover something from it. I have no trouble mounting any other cards, whatsoever. I am not getting any block devices in /dev, but the mmc subsystem ...
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2answers
11k views

Performance difference between SD and MicroSD cards?

If you compare a MicroSD card with an advertised speed of 48 MB/S to a full size SD card with an advertised speed of 48 MB/S (from the same manufacturer), should their performances be identical? Or ...
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1answer
106 views

Android can read my MicrosSD card but Windows cannot

I have recently bought this MicroSD card. The disk was working nicely with my both Android device and Windows PC (through its built-in MemoryCard reader). This is what I have done to cause the ...
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4answers
1k views

MicroSD card is not detected by Windows

I formatted my MicroSD card to HFS+ and then back to NTFS from within my Phone device (using an app namely Paragon exFAT, NTFS, and HFS+). Now that I insert the card into my PC (Windows 7), the ...
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What is the difference between the UHS version and the UHS speed class of a SD card?

What is the difference between a SD card UHS version (UHS-I or UHS-II) and the UHS speed class? It seems they go hand in hand. Are they just redundant (UHS-I is always UHS speed class 1 and UHS-II is ...
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49 views

Compatibility with FAT32 using 1024 sector size

On an embedded system, we are using FAT32 with 512 sector size on SDCard. We will be writing files of 800k and need to do this quickly. Our filesystem code writes in blocks of 512 to the SDCard ...
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26 views

SD Card Won't Mount

First off, the mount I am talking about is the SD card being able to be read/written to. So I have an Acer Aspire Switch 10 (AAS10 from hereon), Windows 8.1. So I wanted to look at pictures I took a ...
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24 views

SD Card Locked Error on camera

I have a Canon camera. Last week after recording some movies, it took so long to process, so I got bored, and unplugged its batteries :D Then I turned it on, it said "Memory Locked". I inserted the ...
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61 views

SD Memory card vs MicroSD with Adapter

Is a SD memory technically identical to a MicroSD with SD adapter? Can a software or reader distinguish one from other?
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459 views

SD card write protection

I'm trying to remove write protection from my 32 GB microSD from QUMOX. It worked till yesterday, when my phone said "SD card is damaged, try to format". So I did, no luck. Every time I try to write ...
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1answer
270 views

OSX: Making sure Dropbox always starts after SD card is mounted?

I have a Macbook Pro with a relatively small SSD, so I use a 128GB MicroSD card in a nifty little adapter I plug flush into the side of the laptop for some extra storage. I have quite a large Dropbox,...
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1answer
5k views

Can't format or delete any files on SD card

I have a 16 GB SD card i'm trying to format for use. In Windows if I try to format it says Windows was unable to complete the format, and in Linux when I do fdisk -l -u, fdisk just hangs when the SD ...
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13 views

I don't know if my sd card is corrupted or what? [duplicate]

I can't format my sd card. There is details like memory available and use,I can open the contents, but when i open the content, it will like disconnected (?). It is also the same when formatting ...
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19 views

Extension cable for internal SD card reader

I have card reader of Dell Inspiron 5520. You can see it here: Y0W97 But the cable is not enough long. There is any chance to buy extension for it? Or maybe buy longer cable and weld it?
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28k views

Windows 7: how to remove write protection for my SD memory card?

I am not able to write anything to my SD memory card, using Windows 7. How can I remove the write protection?
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1answer
283 views

sd card not detected at all in linux

My SD card reader is not detecting any SD card. There is no output from dmesg when an SD card is inserted. df does not detect anything and also nothing in fdisk -l. Does linux support SD cards? I ...