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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How can I create partitions on a SD card (mmc) at a firmware level

I want to prevent data corruption on an SD card by having a read only partition and a read/write partition. SD card controllers don't respect partitions on the physical flash disk so normal ...
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2answers
6k views

Can 64 GB micro SD card be used for software installation in ASUS X205ta?

I have bought an ASUS X205ta which comes with 32 GB SSD storage. As 32 GB storage is very small, I am planning to put a 64 GB micro SD card in it. Is it possible to install software (like Skype, Viber ...
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3answers
100 views

Unknown USB Device (Device Descriptor Request Failed)

I'm on Windows 8.1 Pro and my SD card slot on my Toshiba Satellite (L505D-S5965) doesn't work anymore. It suddenly stopped the day before yesterday and I know it's not internal damage because when I ...
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1answer
32 views

dd to drive that isn't there [duplicate]

I've been developing a make target that uses dd (actually dcfldd) to write a Raspbian Jessie image to an SD card. The target is just flash: sudo dcfldd bs=4M if=$(IMGPATH) of=$(SDX) sync ...
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17 views

dd always fails to write one partition on first try; succeeds on second

For a robotics project, I've assembled a make target that uses dd (actually dcfldd) to write a Raspbian Jessie image to SD card. This way, I can be assured that my environment is reproducible from ...
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2answers
7k views

Unable to format RAW SD card?

The phone is suddenly switched off when I copying files to my Micro SD. After that my phone couldn't detect that SD. Then I insert it to pc using card reader. when I try to open SD drive on pc, the sd ...
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20 views

Find Text File Data from Raspberry Pi SD Card

The SD card on my Raspberry Pi has become unusable. When the Raspberry Pi was running correctly, it was storing data to a text file. I'm able to read the contents on the SD card via the SD card reader ...
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35 views

unable to format sd card

After formatting my sd card "successfully" from NTFS to Fat32, I put some content on it from my computer. But when I mounted it back to my android device, my old sdcard content was showing as if I ...
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2answers
22 views

Weird driver sticking around

There seems to be an extra driver (E:) connected to my computer that Clicking on it would tell me to insert a disk into the drive It seems to be an SD card and has absolutely contains and holds no ...
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1answer
21 views

file modified date wrong on Android by 8 hours when transferring files with OSX

I moved files to my desktop in OSX from an sd card and then to another sd card. I then put that SD card into my android phone and the last modified date is off by 8 hours on all photos. The modified ...
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0answers
16 views

SD card not being detected?

The computer does not seem to know that there is an SD card in the reader. The reader is showing up in Device Manager and I tested the SD card in another computer (it's fine). Computer is a Dell ...
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5answers
9k views

How to repair an SD card which shows incorrect size?

I've a Transcend SD card for 16 GB and am using it in my smartphone. One day I've discovered that the smartphone recognize it as 6 GB only. I've tried to find the solution to set the correct ...
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2answers
193 views

Dell 2408 wont read sd cards bigger than 2gb?

I've been using my monitors sub card reader for ages, but now I can't seem to be able to read anything more than 2gb using the reader. Is this a hardware restriction or can I update my drivers for ...
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0answers
28 views

What's the best way to store a Mini-SD card?

I just bought two 128GB miniSDXC cards (on sale today on Amazon). One is going in my phone. I figured I could use the other one for a backup of my MP3 & JPGs. Which brings up a problem.... How/...
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48 views

8 GB micro sd-card pretends to be an 16 GB card

Hi guys so i managed to dd a 16 GB micro sd-card on a 8 GB micro sd-card and now the 8 GB card has 12 partitions, the last one with the size of 11.5 GB. this is the partition table: Disk /dev/...
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1answer
35 views

Strange bytes added to end of JPG files on SD card

A month ago, my wife upgraded from a Galaxy S5 to S7, and brought along a MicroSD card full of photos taken on the old phone. Recently, in the process of backing up new photos, I noticed that a lot ...
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4answers
12k views

Dell Vostro built-in SD card reader missing

The computer does not seem do know that there is an SD card in the reader. The reader is showing up in Device Manager and I tested the SD card in another computer (it's fine). It's a Dell Vostro 1500 ...
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4answers
3k views

Unable to format partitioned 32 GB micro SD card

I am unable to format my 32 GB micro SDHC card after I made two partitions on it. First partition is FAT32. Second is 4 GB ext3. Now I am unable to format my card and delete partitions on it. It ...
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2answers
40k views

How can I access /storage/emulated/0/DCIM on android device?

I recently lost the contents of a micro-SD card and hadn't backed up the contents recently enough. Luckily, I noticed that the pictures I was missing happen to be in /storage/emulated/0/DCIM/....
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1answer
34 views

How do I copy files onto a microSD card FAT16 partition using Windows7?

I have a microSD card with a FAT16 file partition and I'd like to add some files to it. How can I put files onto the FAT16 partition of a microSD card with Windows 7? Unfortunately my windows box ...
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6answers
15k views

How to use Cygwin to copy an image from an SD memory card

Long story short, I'm working on a Windows 7 machine and I'd like to strip the image off an SD card (backing up the card from a Raspberry Pi). I'm trying to use Cygwin, but not having much success. ...
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0answers
23 views

OOM kills and swappiness for IoT devices with eMMC and SD storage?

I experience an occasional Out-of-Memory (OOM) kill from the compiler on BeagleBoards, CubieTrucks, etc. They are IoT devices, powered by ARM, generally have 512 MB to 2 GB of RAM, and use 4 or 8 GB ...
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34 views

Content of folders disappear when orgnize the files into folders in SD card

I want to transfer larger mp4 files to an SD card with a capacity of 64G.I can transfer these files without a problem if I put all of them in one folder.However if I divide them into different folders,...
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4answers
5k views

My SD card deletes new files by itself

I am using 64GB micro SD-Card. I always put it into my laptop slot for secondary storage. Recently, I found a big problem that my SD card won't work properly. I mean, When I copy new files to the ...
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5answers
15k views

Bypass read-only SD card with missing 'Lock' slider

I have an SD card, that is broken, the slider for the "Lock" is gone. When I put it into my computer it turned out to be in read-only, How can I override this with software? I need to format the SD ...
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1answer
4k views

Cannot format micro SD Card in mac OSX 10.9

I tried everything but I cannot format it. When opening the disk utilities I get 2 partitions, one which is greyed out. When trying to format the first one it says "couldn't unmount disk". When ...
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0answers
15 views

On Windows 10, in a tablet with a permanently inserted SD card, how to automatically treat the SD as a permanen drive with the Task Scheduler

I have an ASUS tablet with Windows 10 and i am trying to use the SD card (128 GB) as a permanent drive. I followed a guide from this site, here the link. I have sucesfully created a virtual disk in ...
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2answers
59 views

How can I install elementary OS alongside windows 10 without a USB or DVD

Only way of transferring data to and from my laptop is the SD card port, its the only thing that works, none of my usb ports are working and my dvd drive is dead as well. Also i want it alongside ...
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0answers
49 views

Why doesn't my android tablet read my SD-Card, when it is readable by other devices?

I have : A feature phone An Android Tablet - iBall Slide Brillante 8GB A 2 GB Sandisk SD-Card. A Windows-7 laptop computer. My SD-Card was essentially for use in my feature phone. I have been ...
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1answer
60 views

Recovering information from a damaged (reduced in size) MicroSD

I've got a 16 GB MicroSD card previously used in a Galaxy smartphone. What I see now is a disk hardly recognizable by a card-reader. The one that actually could have recognized it shows a disk with ...
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21 views

How to modify embedded Linux firmware?

I'm sure there's a simple answer to this, however I don't usually do THIS type of programming. I purchased a device (https://amzn.com/B00INMB23Q) to copy SD cards over to a USB storage device. It ...
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27 views

Does dd read every possible byte from the SD card?

I have this damaged 16 GB MicroSD card which is hardly readable by a card reader (one of my two readers recognized it) and it shows up in the system as a drive with a single raw partition with 200-ish ...
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2answers
152 views

Can't create a partition table on micro SD card

I'm trying to reformat a micro SD card that was previously in a raspberry pi (and had stopped working). However, when I plug it into my main computer (arch) and try to partition it, I can't because ...
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3answers
11k views

what appropriate “Allocation Unit Size” for an exFAT SD card with ReadyBoost

I've brought an 4GB SD card and I'm dedicating it for use by ReadyBoost (on Windows7) Im looking to get the most profit on performance, so i've formatted it with exFAT (as recommended by Microsoft) ...
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43 views

Internal SD Card Reader disconnects randomly

I bought a new PC (Lenovo U3170) but it seems that built-in SD card reader is broken, but I looked better, and i determined its not, because I copy pasted 1GB of files and during the transfer it was ...
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2answers
6k views

How do I shrink an SD Card image?

I imaged a 16 GB SD card using the dd command. The card however, does not have more than 4 GB of data on it across 2 partitions (FAT32 & ext3). I would like to transfer this image on to a 8GB SD ...
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1answer
21 views

Are wifi enabled SDCARDs a viable option for my 3d printer?

For a PC I have a HP Envy running Windows 7. It is attached via usb cable to my Flashforge Creator Dual 3d printer. Conventional Internet Wisdom suggests that it is better to store your model on an ...
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68 views

How can I expand Bluestacks memory in Windows 10?

My computer recently updated to Windows 10. Since then, Bluestacks (which I use mainly to access Whatsapp) has a very limited amount of space, and when I try to download pictures/videos it tells me ...
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0answers
24 views

Need help writing Linux script to automate moving files when flash drive is inserted

I am trying to use a Raspberry Pi running Raspbian to automatically move (not copy) the contents of Folder A (local) to Folder B (on SD card via USB to SD card reader) automatically when the card/...
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0answers
38 views

dd'ing images onto an SD card

I have a somewhat weird situation I'm trying to dd an OS image (something which I dd'ed off a card earlier) onto an SD card. The card capacity is 8GB and the image was made off an SD card of similar ...
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0answers
20 views

Install and run Windows XP from SDCard

I'm planning to revitalize one of my old notebook Acer Aspire 3600. In the user guide: Storage subsystem 40/60/80 GB or larger ATA/100 hard disk drive I'm planning to replace the existing hard disk ...
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1answer
71 views

Best Way to check ACTUAL space on SD/microSD card

In the past I have read some posts by users that they have purchased a SD card from a generic vendor in another country. Although the SD/microSD card may state that it holds 128GB/512GB, the actual ...
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1answer
38 views

SD card supports ReadyBoost in USB adaptor but not in SD card reader. How to fix?

When I insert an SD card into the SD reader, I am not offered the ReadyBoost tab in the drive properties section. When I put the card into a USB adaptor and plug it into the USB slot, ReadyBoost is ...
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4answers
6k views

Windows 7 Virtual Memory Optimization - ReadyBoost vs. Flash Swap vs. RAM Disk?

At first i thought ReadyBoost means having swap file allocated to flash drive which is wrong because ReadyBoost serves as additional storage for swap file or should i say it mirrors swap file on hard ...
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23 views

WIFI SD card for a Linux embedded device?

I'm researching the possibility of adding the capability of wireless file transferring, to an embedded device running Linux. It seems to be that a shortcut solution is to replace the SD card on the ...
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1answer
66 views

SD Card as Permanent Storage?

Is it safe to use an SD card as a permanent secondary storage for my laptop (by letting it be there, without removing it regularly)? I don't know how SD card hardware is internally different from an ...
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2answers
241 views

MicroSD card is write protected

I have a 32 GB Lexar microSD which had been working perfectly for the past 3 months on my phone. But recently I noticed I am unable to write new files to the SD Card. I tried to format it from my ...
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1answer
627 views

How can I eject a memory card or other removable media from the command line (without removing the reader)?

I can eject a network drive using net use X: /DELETE but when I try to use this same command on removable media I get an error: The network connection could not be found. More help is available by ...
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1answer
1k views

How can I determine if my Dell M4600 built-in SD card reader can support SDHC cards?

I'm running x64 Windows 8, and the SD card reader in my Dell M4600 is unable to read my SDHC memory card. The reader is listed as "SDA Standard Compliant SD Host Controller" in device manager. I'm ...
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66 views

How to check if SD/USB card become corrupted?

I have some raspberryPi2 model-B boards, using USB drives as their root filesystem. As it turned out, the USB chips I had chosen are prone to build up tremendous heat, and after 6-8 months, they ...