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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dd to drive that isn't there

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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13 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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15 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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21 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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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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2answers
79 views
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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
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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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
33 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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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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22 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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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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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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42 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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34 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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1answer
58 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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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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47 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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63 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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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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2answers
143 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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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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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
70 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
37 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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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
63 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
232 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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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 ...
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151 views

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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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
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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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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1answer
35 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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71 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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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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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
90 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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1answer
29 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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15 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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89 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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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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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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42 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
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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1answer
83 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, ...