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 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 ...
2
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27 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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43 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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9 views

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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43 views

Is there a way to make a sd card WRITE/READ only - DISABLE ERASING

I'm a noob trying to find a solution to make a sd card write/read only? Like creating files is possible but to erase something you have to format the whole card. In terms of erasing you only can ...
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4answers
244 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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21 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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10 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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18 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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20 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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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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16 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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13 views

How to Prove SD Card functions correctly

I recently bought a micro SD card from China. I am wanting to test it to prove that it actually works. I have been trying to install it with my new Raspberry Pi, but have been getting corruption ...
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1answer
2k views

Why aren't SD card 'contacts' uniformly placed?

As you can see above, Some contacts seem to be longer than the rest. Also, on the SD card (2nd from top) the last one seems to be thinner and also closer to the seventh pin. Why not just uniformly ...
2
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0answers
113 views

How do I read/write images to eMMC boot partition(s)

I tried this question on Stackoverflow but it was modded offtopic; they suggested I try over here... I have a bunch of non-working Android mainboards I need to repair. Many of them have corrupted ...
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15 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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27 views

Corrupted SD Card

I am using Micro SD Card for OS on my Odroid micro-controller. Today I figured out that my Micro SD Card is not responding. I plug into my Laptop ( Linux OS ) and after that in other laptop ( Windows ...
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1answer
66 views

Does the BadUSB issue also affect SD cards?

Since I've heard about the BadUSB issue where the firmware of a USB stick can be maliciously changed, I was thinking about ways to avoid this issue. Would using SD cards as an alternative to USB ...
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3answers
89 views

How many times can SD card be overwritten and how to find out the actual number of overwrite cycles

How to find out overall health of an SD card? In particular: Can I detect the number of remaining overwrite cycles? Or the number of actually performed overwrite cycles on particular SD card? Whats ...
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1answer
67 views

Are Class 4 microSD cards faster than Class 10 microSD cards for small files?

In a comment to this Hardware Recommendations SE question, Agent_L writes: There is no such thing as "fastest" card, eg cards with higher (like 10) class are faster for large files (eg video) but ...
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3answers
37 views

Sd card surface disk errors and fix

I am using 16 gb sd card I used mini tools wizard 9.1 to do a surface scan on my 16gb sd card and I got 960 bad sectors, my question is how do I fix it?
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16 views

SD card stopped working [duplicate]

My 3DS SD card stopped working after connecting it to my PC with a USB card reader. Mobile phone says that my card has no format. I have very important data in it, any idea of what could I do to try ...
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1answer
96 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 ...
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1answer
31 views

SDXC Write Speed Decrease Over Time

I've noticed in using my external SDXC cards that the write speed tends to decrease over time during a large file transfer. For example, when an SDXC card is plugged into the port on my 15" rMBP and ...
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1answer
30 views

Can't format sd card bootmrg virus

I can't format my SD Card I was try disk part, SD Formatter, Windows Disk manger But i cant format my SD card Its Showing 45 MB my card is 4Gb Tell me any other way to format It
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11 views

Getting all partitions of an SD card to show in Linux

I have an SD card that I formatted using the Chromebook Recovery Utility. There was some free space after creating the recovery card, so I used gdisk to add a 13th partition. After creating this ...
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45 views

Set PERM_WRITE_PROTECT on an SD card on Windows

I'm running Windows 7 and I have an SD card that I would like to write-protect. It is a micro SD card, so it does not have the write-protect switch. Even if it did, I do not feel that the switch is ...
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48 views

Recover important photos/videos from unallocated space on MicroSD card (if possible)

I'm trying to recover photos/videos from the unallocated space on a MicroSD card, which was used in a Samsung Galaxy S3 Mini GT-I8190N. The previously healthy card appears to have become corrupted, ...
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41 views

Unable to format memory card in PC [duplicate]

My memory card is not detected in PC. I tried the following but still could not recover it, Tried the HPUSB format tool it says "Memory card is write protected". Right clicked on my computer -> ...
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1answer
33 views

Tracing storage media ejects and disconnects

I had a SD card that I kept permanently plugged into my laptop. Had, until I noticed it was missing this week. I don't know when exactly it fell out, the laptop may or may not have been in suspend at ...
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38 views

Is it possible to backup data on a piece of external media (SD card) and nothing else to my HD?

This is about Windows 7 (Ultimate, x64). Inserting a SD into its slot and right-clicking on its icon has "Properties" last in the menu. When I choose it, the last entry on the second tab ("Tools") ...
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13 views

Can a SD card with bad eraseblocks be salvaged?

I have an SD card on my Raspberry Pi (formated with ext4) that always shows errors at mount time, even after a fresh fsck run. I suspect it is a cheap card with no wear leveling, and some blocks got ...
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1answer
46 views

SD Card Failures

We are testing a video playing system that uses SD cards as the means of storage. The test is being conducted on 6 systems that are playing exactly the same content, all the players are the same, the ...
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What programs are most affected by slow write speeds?

I'm specifically referring to "power user" programs that will be slowed significantly or crash as a result of slow write speeds. I will most likely make use of Serato DJ, Adobe Illustrator, XCode, ...
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17 views

Windows 7 auto-play not opening device files

I want to see my android device internal files and sd card files. So when I connect my device to my machine; It shows me autoplay pop up. But when I select open device to view files; popup just ...
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2answers
92 views

How to undo hack on fake memory card [closed]

I bought an SD memory card 32gb that I didn't know was fake till I used it on my PSP, then I tested it with h2testw to know the actual capacity and it was way lower than 32gb,maybe about 4gb, please ...
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1answer
28 views

Unable to perform any kind of operation on MircoSD card

I have a 8 GB SDcard that look like this in gparted: My goal is to have a single 8 GB partition on the SDcard. When I try to perform any operation (delete partition, create new partition, change ...
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1answer
96 views

What's faster: A USB2.0 flash drive or a SD card

I was asking myself which which has the higher read/write speeds: A USB2.0 flash drive or a SD card. Concerning the USB2.0 flash drives, I found that they have a maximal read/write speed of 30MB/s. ...
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1answer
111 views

How to check SD Card Class and other specs on Windows/Linux?

Is there any way to check SD card class and other specs in linux / windows? I mean read/write speed, serial, class, etc. I amd seeking a way to determine these, specially the 'class'. thanks
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How do I boot from SD card on Toshiba Satellite A300D-21R?

The problem: I recovered a quite old notebook(Toshiba Satellite A300D-21R -- can't find it in Toshiba discontinued products... This model just doesn't exist on the internet) without a harddrive so I ...
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1answer
155 views

How do I write a TAR file to SD card?

I need to write the OpenELEC Mediacenter OS image to an SD card for the Raspberry Pi. Usually most OS's provide an IMG file that I can just write with Win32 Disk Imager. However OpenELEC only ...
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94 views

fdisk show the wrong size of micro SD card

I have a 32GB micro SD card. when I use fdisk to partition the SD card, it show that my SD card was 2TiB, here is the message of fdisk, how should I solved this problem Welcome to fdisk (util-linux ...
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2answers
840 views

Can I use an 128GB SD card instead of an external hard drive on mac osx

I am stuck in a situation where I need more storage on my macbook. Most of the space is used up by dropbox which is used for work and although I have tried selective sync it is getting a bit annoying. ...
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110 views

MacBook Pro (2014), SD Card for VMWare 7 virtual machine

I've been having drive space issues on my MacBook Pro. It's the mid 2014 Retina 13" edition w/120 GB flash drive. I run VMWare 7 Fusion (for a virtual Windows 8 machine) and my idea is that I buy a ...
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1answer
53 views

Windows doesn't recognise first partition on SD Card

I have a 32 GB SD Card that I bak my files up to. Recently I've dual booted my Windows 7 laptop with Ubuntu, and I wanted to use timeshift to back up my Ubuntu system. Timeshift requires an ext based ...
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298 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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56 views

Are Class 10 and UHS-1 SD cards really the same?

I'm seeing lots of cards advertised as being Class 10 and UHS-1 as if it's the same thing. Also, the "official" SDCard.org page says both Class 10 and UHS-1 have a minimum speed of 10 MB/s: ...
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1answer
113 views

SD card second partition not recognized

I've created two partitions on an SD card, both partitions primary partition and both FAT32. I used minitool partition wizard. But widows 7 only shows the first partition and not the second one. What ...
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64 views

Mount FTP site as virtual SD card [closed]

So basically what I'm trying to do is mount an FTP (which happens to be a SD card for my nintendo 3DS) as a virtual SD card on my windows computer, I've seen ways to mount the FTP as a normal virtual ...
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1answer
21 views

Will I encounter problems if I install Cygwin on my SD drive?

My computer doesn't really have much hard drive memory available (10 GB at most). It was a very cheap computer (Asus x205TA) , I bought it for $200. It runs on Windows 8.1 32bit on a x64 processor. ...