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40
votes
1answer
15k views

Recover Data from Card that cannnot be read

I am trying to help a friend who is very concerned that she has just lost all of the data on her 32GB SanDisk microSD card. I told her I would post this and see if anyone could offer help. Here are ...
26
votes
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 ...
15
votes
5answers
2k views

Is there any way to tell if an SD card has been used?

I ordered a “new” micro SD card from Amazon Marketplace. However, it was sent in a small cheap plastic bag instead of the original package. I put it into my PC and found it to be empty but formatted. ...
11
votes
2answers
5k views

Standard SD card and Micro SD card with adapter; same speed?

I'm going to buy a new SD card to be used in my car's audio player. What I would like to know is, if I buy a micro SD card with adapter, will it provide the same read/write speed as a standard SD card ...
11
votes
3answers
15k views

How can I reformat microSD cards that were created read-only?

My company was burning some microSD cards (4000 of them) and the multi burning machine we were using gives us the option to make the microSD read-only. I didn't know this was possible, but ...
10
votes
1answer
2k views

Error whilst initializing SD card on Linux

I have noticed troubles with my microSD card in my Android phone and when I tried to insert it into my Linux laptop, I get the following error in dmesg: [ 247.588279] mmc0: error -123 whilst ...
8
votes
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 ...
8
votes
1answer
10k views

How could I let Skydrive desktop sync to MicroSD in Windows 8 tablet?

I have a Samsung Slate 7 tablet with (now) Windows 8 on it. This machine has a 64 Gb SSD and I have a 64 Gb MicroSD card in it. I also have a Skydrive on my main Microsoft ID that contains about 45 Gb ...
7
votes
2answers
145k views

Fix damaged MicroSD card that cannot be formatted

I have, not one but two microSD cards that my phone (Samsung Galaxy Young, Gingerbread OS) seem to have broken. One is 1GB and the other is 2GB. The 1GB one won't be formatted. When I put the 1GB one ...
5
votes
2answers
3k views

I am receiving a message stating “unknown device” when i plug a usb or external hard-drive in my computer.

I am having an issue with USB drives and Windows. When any external media device is attached to the computer in Device Manager I receive the message unknown USB device. This happens with USB drives ...
5
votes
2answers
53k views

Disable write-protection on Micro SD

My task today is to open up and copy some files to 700 brand new micro SD cards. As I get going on this task I am finding that some of the Micro SD cards are telling me "sorry this drive is write ...
5
votes
1answer
7k views

Is there a utility that can identify the class of SD card / microSD card? [closed]

Is there a utility, for Windows 7 64-bit preferably, that can tell me the type of SD card or microSD card that has been inserted Class 4, class 6, etc. Freeware is preferred, but I am willing to hear ...
4
votes
3answers
85k views

How can I factory reset my microSD card

I got a sandisk ultra 64gb microsdxc card for use in my Galaxy S3, worked fine. One day I decided to plug it into a cheap camera. The camera said something to the tune of "memory card error" and it ...
4
votes
3answers
40k views

Restoring microSD partition table

I just found that my HD2 broke its memory card's partition table at once. When I insert the card in my SD reader I get only a whole RAW (unformatted) partition in Windows. Linux doesn't even see it ...
4
votes
1answer
444 views

Why is my microSD card is so slow?

Recently, I have bought an ASUS Transformer Book T200TA with 32GB internal memory and 4GB RAM. To increase the storage, I have added a 64GB microSD card through its slot. The card is identified as a ...
4
votes
2answers
1k views

Is there anyway to simulate Windows 8 running off a microSD card? (Limit the I/O speed)

I would like to install and boot Windows from a microSD card using the Nifty MiniDrive, however, before I pay for the device and microSD card I would like to see the performance differences between ...
3
votes
3answers
551 views

How can I find out the /sys/class or /sys/devices entry for a mounted filesystem?

What I have: I know the place in the filesystem where a microSD card is mounted, e.g. /storage/sdcard1 What I need: To find out which device folder it corresponds to, e.g. /sys/class/mmc_host/mmc0 (...
3
votes
2answers
39k 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/....
3
votes
3answers
4k views

Is there a Usb to microsd converter?

Wondering if there is a converter which would allow me to insert a usb into a microSD slot. Especially, on the Asus Transformer! or any other way. Edit: More precisely if there ain't any, why ? what ...
3
votes
1answer
795 views

Sync folders between Windows 8 and Windows RT (Surface RT, MicroSD card)

I'm loving the Surface RT as a decent go-between device, great for meetings and conferences etc, especially with OneNote. I have a 64 GB microSD card for the Surface RT and would like to sync ...
3
votes
0answers
308 views

Reading Encrypted Files from Android microSD Card

My wife had a Samsung Galaxy S3 which she just traded in for a new phone. I would like to get some of the files off of the micro SD card if possible but it was encrypted. I have tried using ...
2
votes
3answers
32k views

Cannot delete files or format MicroSD card

I have a 2 GB SanDisk MicroSD card. I normally use this card in my Nikon camera but ever since I used it in a Brother printer, I cannot delete any of the files, write or format the card. I've ...
2
votes
2answers
6k views

micro-SD card slot not working on Microsoft Surface RT tablet

Whenever I try to put a micro-SD card into the slot on my Surface RT, the card does not show up at all. I don't even get an acknowledgement that some device was inserted (other than the usual sounds). ...
2
votes
1answer
2k views

Using MicroSD cards with Metro Apps on the Surface RT

You can add a MicroSD card to the Surface RT (required since in the 32 GB version the OS itself takes up 12 GB or so), but inexplicably you cannot add your data/media stored on the card to a Library. ...
2
votes
1answer
200 views

Recover a MicroSD memory

I connected my MicroSD Memory to a computer and when the computer was reading data from it, I suddenly removed it from the computer. Now there is no files in memory and it's empty BUT My Computer ...
2
votes
3answers
5k views

Testing a SD card? [closed]

I am suspecting that one of my 32GB cards might be damaged - I would like to analyze it. Is there some free software to run an analysis of an SD card?
2
votes
0answers
200 views

What is the purpose of the contacts under the sticker on the underside of this microSD card?

Many (most?) microSDs have a sticker on the bottom: I peeled one off, and revealed several small copper contacts beneath it: What is the purpose of these?
1
vote
2answers
12k views

Do memory cards have any max file size limitation?

I am not sure where to ask this question, so perhaps it is physical limitation. I have a 8 GB flash micro SD memory card. When I copy any file size of up to few gigabytes, copying happens ...
1
vote
3answers
1k views

Will a 128GB SDXC work on a 64GB compatible sd card slot?

I'm not quite sure if this was the correct board for this topic. But I had been searching for an answer and found no luck in with regard to this specific question.. I'm looking to buy a Lenovo Miix 3-...
1
vote
1answer
4k views

Are microSD cards lockable?

I have a .Net Micro Framework app that is failing to write bytes to a microSD card. When I take the card out of the device and look at it on my PC using a microSD to SD adapter the PC cannot write to ...
1
vote
2answers
662 views

How fragile are microSD cards? [closed]

Especially when compared to USB flash drives My parents tell me to be REALLY cautious with them. But I'm not sure if any convenience costs are warranted
1
vote
1answer
96 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 ...
1
vote
3answers
261 views

How can I recover a Micro SDHC card when I cannot assign it a drive name (i.e. can't mount it)?

I bought a Kingston Digital 16 GB microSDHC Class 10 UHS-1 Memory Card 30MB/s with Adapter (SDC10/16GB), http://www.amazon.com/gp/product/B0036V9AGU?psc=1&redirect=true&ref_=...
1
vote
2answers
1k views

Deleting (Erasing) all Data from Failed SanDisk MicroSD Card

I've had two 32GB SanDisk MicroSD cards go bad recently. One I was able to temporarily revive using the kind advice offered in this thread: Recover Data from Card that cannot be read When I insert ...
1
vote
2answers
49 views

Are faster high-capacity microSD cards less compatible?

I have heard claims that faster high-capacity (64GB+) microSD cards will not work in some devices in which slower cards will work. I have not been able to correlate this to any particular brands or ...
1
vote
1answer
960 views

Has a Macro SD card any technical advantage over a Micro SD?

Given two memory cards of the same capacity and same class, the only technical difference I know is that micro SD cards work on any device, thanks to the adapter, while Macro SDs will work only in ...
1
vote
2answers
15k views

MicroSD not showing because of corruption

I have a Dell Venue 8 Pro a few months ago which runs on full Windows 8.1 and I put a MicroSD 64GB (Kingston SDCX10) on it's MicroSD card slot and it is working properly. Today my cat tripped my ...
1
vote
1answer
240 views

What class is this micro SD card?

I had a 2GB Sandisk micro SD card lying around but no number written on it. My digital camera's card just died and it recommends a Class 10 card. I bench-marked the micro SD card and this is what I ...
1
vote
2answers
79 views

HP Pavilion Slimline s3220n SD Card Reader Issue

I have an HP Pavilion Slimline running Windows 7. It came with an SD card reader. I can read SD cards with it, but when I plug in a Micro SD card via an adapter, it is not recognized. The light ...
1
vote
1answer
60 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?
1
vote
1answer
261 views

How to convert a bootable usb to a bootable microSD card

I just got a recovery flash drive for my tablet containing its OEM version of Windows 8.1. There is only one problem... The power input is located too close to the 1 and only usb port. The system ...
1
vote
1answer
2k views

Samsung 32GB microSD card is not detected by Windows

I have an issue with my Samsung microSD card. I formatted this card on Windows. Now Windows doesn't recognize it (0GB free, 0GB used). I think data was deleted, because when I plug it in on Linux the ...
1
vote
1answer
619 views

SD Card damaged by DBAN

In order to wipe external storage of my android, I put the SD card in laptop and ran DBAN. It has become blank but not readable by mobile or laptop. Mobile says"SD card blank or has unsupported file ...
1
vote
0answers
41 views

How to fix the Broken SD Card

I seem to have broken my micro SD card.The partition names in the disk-utility shows unknown partition. Can some one assist on how to go about recovering the data from it or fixing it? Attached are ...
1
vote
0answers
75 views

Windows 8.1 TW700 Tablet microSD Card Seems Too Hot

I picked up a TW700 tablet and, after some tinkering, managed to use NTFS junctions to move \Program Files\ and \Users\ to a microSD card to give myself some breathing room. I'm not expecting much ...
1
vote
3answers
3k views

MicroSD card isn't detected by computer, apparently usable only with phone

I have a 4GB MicroSD card that apparently only works (in the sense that the device detects and can read and write from and to the card) with my old Nokia XpressMusic 5800 phone. I have taken pictures ...
1
vote
3answers
1k views

MicroSD Overlapped partitions

I have a SanDisk MicroSD HC card (16GB) and I'm facing some problems using it. It was installed on a Nolia E71 cellphone (wich can handle SD cards up to 8GB - I believe this is a clue to the answer to ...
1
vote
0answers
1k views

Micro-sd card readable but not able to write or format

I've a Sandisk 64gb class 10 microsd that used to work fine. All of a sudden it has become read-only. I can read all files, but I cannot delete/add any files or format the sdcard in Android, linux or ...
1
vote
0answers
268 views

How to create a virtual drive/hub which represents other devices as virtual folders? [closed]

I'm doing some initial research for an embedded device project I have in mind, and I'd like some help getting an idea of viable technologies which would be necessary to achieve this. I'm not an ...
1
vote
0answers
602 views

SD card LBA not starting with zero

I have a 16 GB SD card. I created two partitions on it to use it with my rooted phone, one FAT32 and one ext4 (possibly ext3 – I don't remember). Now I've changed the SD card in my phone and I want ...