Internal SD Card Information. Information about an SD card is encoded in its internal card registries. One of these is the Card Identification (CID) Register, a 16 byte code that contains information that uniquely identifies the SD card, including the card serial number (PSN), manufacturer ID number (MID) and manufacture date (MDT). If more than one card cannot be read, then the USB card reader may be defective and unable to read SD cards. Press the card in a little harder With some card readers, the SD card may have to be pressed in a little harder. Please note the above code does not read the hardware serial number from the CID register of the card. Instead it reads a temporary serial number created by windows - not what people are looking for. How to read the CID from an SD card One way to read the CID is to use a laptop with an SD card slot. Card readers in laptops are usually connected directly through the PCI bus (or IDE bus). USB Serial Number - Windows 8. HCKThis test verifies that the serial number on the device under test is unique.
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Original Title: SD card reader problem on windows 10
Dear Microsoft,
Eventhough I am pleased with Windows 10 as an operating system I have an issue with your card reader recognition of cards (SD card)
I upgraded to Windows 10 last summer. After a while I noticed that my internal card reader did not recognize the card all the time. Usually when it did not, a simple reboot of the computer was required to make it work again.
I blamed the hardware (it was an old one) and bought a new one (brand Akasa, but don't ask me the model number)
I installed it and the first impression was that it worked well. But I think it already started to behave the same after the second usage a few days later. Again a simple reboot was enough most of the time, sometimes a second reboot did the trick. Ofcourse I have tried to get rid of the problem entirely by reinstalling the device completely (removed the device from the hardware list
I have never used the manufacturers drivers. But after that did not help I tried to find Manufactuerers drivers, but I could not find them because it installed the device out of the box I figured there weren't any specific manufactuerers drivers needed. I also right clicked 'this computer' and then went to 'manage' (Not sure if those are the exact translations, since I am using the Dutch language and I am not a native English speaker)
Under 'Disk management' I could not find the SD card inserted when Windows did not recognize the Card.
I do, however, see the vacant slots of the hardware when I double click 'This Computer' even when the SD card insrted is not recognized.
In order to exclude both hardware and software issue at the same time I decided (since I do not have an extra card reader nor SD card) to install an extra SSD hard drive which I luckely had somehwere.
I decided to install Ubuntu Mate 15.10 on it and with the boot (Grub2) on the extra SSD (so not on the Windows SSD)
This means it, I think, that it does not interfere in any way with the Windows installation (except for the darned BIOS clock settings, but that can be fixed). So my computer automatically starts Windows and when at boot I want to start Ubuntu Mate I press F11 to select the right boot device. Works like a charm.
I tested the same SD card and the same reader under this installation and it just keeps on working. Several weeks of testing and it works flawlessly and keep testing it on Windows where it keeps randomly not recognizing the SD card as it did before... I was able to test my SD card in several other devices such as my Travelpilot FX car stereo, my laptop's SD card reader (Windows 8.1). My raspberry pi 1 and my Ubuntu 12.04 LTS server.. None of them have this issue.
Also unfortunately none of them have a removable SD card reader hardwaredevice, but since it does work under Ubuntu Mate 15.10 in the actual computer where Windows 10 is also running on.
So I concluded there is no other possibily then it being a Windows 10 issue or a corrupt installation. I freshly installed Windows 10 with the same key and no third party drivers installed whatsoever nor third party software tested it for another week, but the problem remained.
Therefore I cannot conclude anything else than it being a Windows 10 problem.
When does it occur?
Very random, sometimes it works a few times in a row, sometimes it does not work a few times in a row, sometimes every other reboot it works, (I refuse to keep my computer running for it to keep working)
What have you tested?
When does it occur?
Very random, sometimes it works a few times in a row, sometimes it does not work a few times in a row, sometimes every other reboot it works, (I refuse to keep my computer running for it to keep working)
What have you tested?
Well beside the above I have checked the internal cabling of the reader (but since it works flawlessly everytime on Ubuntu Mate 15.10 I cannot believe the cabling is the problem
Have you installed the manufactueres drivers?
No, could not find any. But I suspect it must be a driver issue since it works flawlesly on other device and Ubuntu Mate. However my old reader had the exact same symptoms so it must be something with Windows 10 that does not work properly.
I am out of ideas and a bit frustrated by this stupid little issue. Other than that I think Windows 10 is your best operating system in a long time when you turn off all the privacy settings :p
Can you please help me out on this issue, nearly getting nightmares from it
Can you please help me out on this issue, nearly getting nightmares from it
![Read Sd Card Serial Number Windows Read Sd Card Serial Number Windows](/uploads/1/3/3/8/133897075/987515725.png)
Active1 year, 4 months ago
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
Saeed VrzSaeed Vrz
2 Answers
It may be written on the card. You can use the programs below to test.
Windows: h2testw
Linux: F3
Source: How do I check the class of a micro sd card?
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Serial Number Windows Xp Sp3
This is not information about the SD card per se, but it will show how the reader has configured itself for card access (frequency, voltage, timings)
Read Sd Card Windows 7
This is for Linux. Hopefully it would have configured itself properly.
Read Sd Card Serial Number Windows 7
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