How To Read CID on SD card
If you are looking to read the CID number of an SD card, or extract the CID off an SD card then you’ve find this article very helpful. Some also call this “reading the PSN off the SD card” or reading the product serial number off the SD card.
Most phones and much of the software on phones will lock in to the CID number of a SD card. The CID number is a unique card identifier number that is unique to the card itself. The CID number is valuable because software developers and hardware developers can lock software to the unique number of the device thus eliminating the ability to pass along licensed software.
![Serial Serial](https://www.usb2sd.com/u_file/1907/products/30/794f01fc2a.jpg.500x500.jpg)
Reading the CID number from an SD card is not an easy task. It requires specific access codes to the index table of the memory card, and unless you know how to use the SD chipset of your card reader, chances are you wont get the number…or least the correct and accurate number.
What is the CID number of an SD card?
![Sd card cid reader Sd card cid reader](https://i.ytimg.com/vi/gnfMCocxlPg/maxresdefault.jpg)
Jan 02, 2014. Before you insert the micro SD card into the module and hook it up to the Arduino, you must properly format the card. For the Arduino library we’ll be discussing, and nearly every other SD library, the card must be formatted FAT16 or FAT32. If you have a new SD card, chances are it’s already pre-formatted with a FAT file system. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. ./evopluscid cid serial device - sd card block device e.g. /dev/block/mmcblk1 cid - new cid, must be in hex (without 0x prefix) it can be 32 chars with checksum or 30 chars without, it will be updated with new serial number if supplied, the checksum is (re)calculated if not supplied or new serial applied serial - optional, can be.
The CID register is 16 bytes long and contains a unique card identification number. It is programmed during card manufacturing and cannot be changed by SD Card hosts. The CID number is a compilation of information about the card, such as manufacturer, date manufactured, checksum total, GB size and more. Below is a table outlining all the items which make up the SD CID number.
So with all this said, how do you read the CID number from an SD card? As we’ve mentioned it isn’t easy and it’s [more or less] hardware based. If you do enough searching on the internet you’ll find some home-brew code to read the CID numbers, but that’s only if you have the SD card or microSD card connected via an IDE bus to your host computer. This isn’t easy for everyone. There is clear evidence that using a USB to SD card reader will not get you the information you require, or at least accurate and correct information. Meaning most times the CID number generated is actually the serial number of the card reader itself, not the CID number of a specific SD card.
In addition, what if you are required to read the CID number off SD media in bulk? A single, one-at-a-time solution is not practical.
In my search to read the CID number from SD media, I cam across Nexcopy – a manufacturer of USB duplicator equipment and other flash memory equipment. Several models they carry are SD duplicators and microSD duplicators. With the secure digital duplicators part of their feature set includes reading CID numbers from SD media. The equipment can ready 20 cards at a time, 40 cards at a time, or 60 cards at a time, depending on the model. The duplicators will read the CID number and exported to a .csv file for import into other business functions. This configuration makes it quick and easy to obtain the CID number. Granted, the equipment is not designed for single use operation, but rather reading the CID of SD media in bulk quantity. Here is a screenshot of Nexcopy’s software reading 20 CID numbers:
I didn’t contact Nexcopy Incorporated for pricing of the equipment, but doing a quick search for the equipment shows me a price of about $1k for the smallest 20 target system and $3k for the largest, 60 target system.
SD-cards provided with KESS and KTAG don’t meet the standards to be able to have a serial number (CID) identical between them. Indeed, for the KESS or KTAG to work, the contents of the SD-cards must be encrypted in relation to its CID.
Speed is not the most important.
But a SD card with a writing speed of 0.063MB/s is a very bad SD card.
The most important is to have a reliable SD card for a good and reliable rework.
But a SD card with a writing speed of 0.063MB/s is a very bad SD card.
The most important is to have a reliable SD card for a good and reliable rework.
Sandisk Ultra SD-card & Samsung evo plus card:
I have buy samsung evo plus card (10/2017) and cid is not changeable. I have used Sandisk Ultra SD-card solution and all works fine. Tested on edc16u31 edc16u34 and edc17c46 on bench and all work ok. Btw new samsung evo plus card (unchangeable cid) 95mb/s 32gb work great (speed) tested on raspberry-pi image compared with sandisk 32gb sd card and it work also good in ktag.
Networker 5 3 0 4. class 4 card:
kess and ktag fw support only max. speed for class 4 card
class 10 working as class 4 in the hardware
china card with one CID working slow as class 1,2
class 10 working as class 4 in the hardware
china card with one CID working slow as class 1,2
That is, class 4 should be enough.
The most important is to have a reliable and good quality SD card. (Not like China SD card)
The most important is to have a reliable and good quality SD card. (Not like China SD card)
sasmung sd card (original):
In any case, the sasmung sd card (original) is better than the cards that come in Chinese clones and no name sd-cards. Of course, the maximum speed is limited to the hardware and software features of the NXP microprocessor.
Microsoft office 2016 16 11 – popular productivity suite plans. kingston 4gb sd card:
ktag 7.020 works fine with kingston 4gb. It’s from obd2diy.fr
How To Get Sd Card Serial Cidb
Samsung evo card:
Gold card is just for Android smartphone.
Sleek bill licence key. Only some Samsung evo from 2015 have a security security breach that allows to change the CID.
Sleek bill licence key. Only some Samsung evo from 2015 have a security security breach that allows to change the CID.
Sandisk Ultra SD-card:
I tested Sandisk Ultra SD-card and it works great!! Since i prepared my kingston sd card i have no more « exception eefface » problem. Tested with my ktag 7.020!
THE MOST IMPORTANT NOTE:
Sd Card Cid Change
…edits cards in manual.
It is very difficult and very slow, there is a « human factor », high probability to be mistaken.
…mistake can kill ECU.
Best decision to use cards with custom CID or cards « Samsung EVO », which allow to change CID.
It is very difficult and very slow, there is a « human factor », high probability to be mistaken.
…mistake can kill ECU.
Best decision to use cards with custom CID or cards « Samsung EVO », which allow to change CID.