USB Flash / SD / uSD / Compact Flash Cards

USB Flash / SD / uSD / Compact Flash Cards are lightweight, portable data storage devices. Some are used as an alternative to external hard drives for portable data storage. Others are used in cameras and mobile devices to take and store digital photos, videos and other data. Most USB flash drives, secure digital (SD) cards and micro-SD cards use flash memory known as NAND (non-volatile) memory chips along with complex storage algorithms operating on a controller module to quickly store and recall your data as it is written to and read from the device.

An SD card might look like it contains a single chip to the average person but may contain one or more miniature NAND memory chips and a controller module all soldered to a tiny circuit board. In that way, it is similar to the design of a flash drive using a different form factor. The NAND flash memory chip stores all of your data while the controller organizes the storage sectors of the data using complex algorithms. When you plug the SD card into your computer, camera, or another device, data flows to and from the memory chip, organized and managed by the controller, just like a flash drive. The controller keeps track of failing sectors on the NAND chip as one of its many duties. An even smaller version of this, the micro-SD (uSD) card is considered a monolithic device where the memory modules and controller are bonded into a single piece of silicon.

USB devices and compact cards

NAND Flash Devices Can and Do Fail

These devices can encounter a range of issues leading to failure. If you suspect your device is showing signs of failure or has already failed, or if you’ve accidentally deleted important files, it’s crucial to act swiftly. STOP using the device immediately and reach out to Data Rescue MDs if you want to maximize the probability of data recovery from your NAND device. Continued use of the device may result in permanently deleting the files or decreasing the chances of recovery.

Common Failures:

  • Firmware or File System Corruption or Failure
  • Controller Failure
  • Physical Damage (Fracturing the NAND Chip or Device Connector)
  • Viruses or Malware
  • Improper Removal of Media
  • Component Failure
  • NAND Logical Failure due to Bad Sectors
  • Fires, Floods or Other Disasters
  • Electrical Damage or Electrostatic
  • Accidental Formatting or File Deletion
  • Memory Wear Caused by Excessive Use
  • Manufacturing Defects

NAND Data Recovery

In some cases, these devices, when logically failing, can be recovered using specialized fixtures, equipment, and techniques without removing the NAND chips to decode them in order to recover data. In more severe cases, one or more NAND devices must be removed and decoded with specialized processes and equipment. Data Rescue MDs’ NAND data recovery specialists routinely perform successful chip-off recoveries on these otherwise “dead” NAND based devices, recovering precious memories and business-critical data alike. Contact Data Rescue MDs and we will provide a FREE data recovery evaluation and provide you with a detailed quote and recovery options. If we are unable to recover your data, all fees are waived.

Contact us now to start your Free NAND data recovery evaluation!

Flash Storage Devices



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    RAID Server/NAS

    Data Rescue MDs specializes in recovery of critical business data and VMs from RAID/NAS and Drobo data storage systems using state-of-the-art equipment, processes and expertise.

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    Hard Drives

    Our data recovery specialists are fully equipped to recover data from any type of internal or external hard drive, including damaged hard drives requiring clean room services.

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    Solid State Drives

    Data Rescue MDs SSD data recovery engineers use specialized tools, techniques and expertise to accomplish high SSD data recovery
    success rates.

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    Data Rescue MDs have been successfully recovering data from failed iMACS, PCs and all file systems for over a decade.

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    USB Flash/SD Cards

    We recover data and photos from most SD, micro-SD, XQD CF Cards and USB Flash Drives using micro soldering and specialized tools.

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    Mobile Devices

    Our engineers are very successful in recovering data from all types of liquid damaged and physically damaged mobile devices.

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Recover Your Data Today

For USB Flash/SD/uSD data recovery services, contact the trusted professionals at Data Rescue MDs for a Free Evaluation today!
Lose your fear, not your data!


Call our specialists at (847) 461-3282 or complete our form to begin the process of recovering your data.

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    Free Shipping

    If you cannot drop off your device, we can email you a pre-paid shipping label with packaging instructions.

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    Free Evaluations

    After we receive your device, our data recovery specialists begin the evaluation of your damaged device, free of charge.

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    No Recovery, No Fee.

    In the unlikely event your data is not recoverable, all fees are waived, including return shipping.

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Highly recommend Data Rescue MDs! From the moment I contacted them, they treated my situation with the utmost respect and professionalism. They were thorough, incredibly knowledgeable, and always kept me in the loop as to the progress being made. They took time to explain the complexities of what the team was working on while speaking in terms that I was able to fully understand. Data Rescue MDs went above and beyond after the recovery and completed a task that no other “expert” thought possible. I would recommend Data Rescue MDs to anyone or any business in need of recovery. Some things are just unrecoverable…but if your material is able to be recovered…this is the team to do it!

Laura M.

I can’t thank and recommend Data Rescue MD’s enough! All looked grim after my laptop hard drive failed and I took to two different places and they couldn’t recover the files. I thought all my files were lost for the past 4 months. They recovered all my files and took the time to answer all my questions afterwards. I hope I never have to use them again (as I regularly back up now), but I would definitely call them.

Valerie B.