Data Recovery from eMMC Memory Chip: A Successful Case

October 16, 2024
4 min read

eMMC memory chips are commonly used in smartphones, GPS devices, tablets, smart TVs, and other portable electronics. Despite their reliability, eMMC storage is still vulnerable to data loss from physical damage, firmware corruption, and failed updates.

In this eMMC memory chip data recovery case, we share how our engineers successfully recovered critical user data from a portable GPS device with a damaged eMMC chip, using advanced chip-off recovery techniques.

Understanding eMMC Storage and Recovery Challenges

eMMC (Embedded MultiMediaCard) storage is based on NAND flash memory and integrates both the flash memory and the controller into a single package. Unlike SSDs, many eMMC controllers do not erase deleted data immediately, even after receiving TRIM commands — a factor often relevant in SSD data recovery scenarios.

This delay can be a window of opportunity for recovery experts. However, the process is highly complex due to:

  • Limited cell management features
  • Controller-specific behavior
  • Risk of chip damage during extraction

Recovering deleted or inaccessible data from an eMMC chip requires deep expertise, the right equipment, and a controlled environment.

Case Overview: A GPS Device with a Detached eMMC Chip

A client approached us with a portable GPS navigation device that no longer powered on. The device held valuable location data, route history, and user records. The brand and model were unknown, and the circuit board had already been partially tampered with.

Our engineers immediately suspected that the data was stored on an internal eMMC chip, and upon opening the device, they confirmed that the chip had previously been desoldered. Fortunately, there were no visible cracks or burn marks.

Given the condition of the device, we determined that a chip-off eMMC data recovery process was the most viable option.

Step 1: Safe Chip Removal

Our technicians carefully reworked the existing solder joints to remove the eMMC chip from the board. Using a precision hot air station, the heat was applied just below the melting point of the solder to avoid damaging internal silicon layers.

Temperature control during this stage is crucial. Overheating can warp the substrate or cause internal delamination, both of which could make data recovery impossible.

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Step 2: Ultrasonic Cleaning

Once removed, the chip underwent ultrasonic cleaning. This step is vital for eliminating microscopic particles, corrosion, and flux residues that could interfere with the readout process.

The chip was then dried, inspected under a microscope, and prepared for data extraction using specialized socket adapters.

Step 3: Physical Image Extraction and File Recovery

Using our proprietary chip readers, the clean eMMC chip was connected to a forensic imaging workstation. Our engineers performed a bit-by-bit extraction of the entire chip, allowing us to access:

  • Deleted data in inactive NAND blocks
  • Hidden partitions and system logs
  • Files stored outside the user-visible storage

From the extracted raw image, we reconstructed the file system and successfully recovered:

  • Navigation logs and map data
  • User location history
  • Saved routes and waypoints
  • Cached emails and system files
  • Multimedia files including images and videos

In total, over 96% of the client’s original data was recovered.

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Outcome: Client Satisfaction and Complete File Restoration

After verifying the integrity of the recovered files, we organized a remote session to allow the client to preview the data. They were thrilled to see everything restored  including files they assumed were gone forever.

The data was then transferred to a secure USB drive and returned to the client via tracked shipping.

Why eMMC Data Recovery Requires Expertise

eMMC chips are soldered directly to circuit boards and are not user-serviceable. Once damaged, DIY recovery is virtually impossible. Only trained engineers with access to professional chip-off equipment and cleanroom environments can recover data safely from these chips.

According to our internal statistics:

  • Over 70% of eMMC recoveries involve chip-off procedures
  • 92% of successful cases require ultrasonic cleaning and physical imaging
  • Devices from GPS units, drones, smartphones, and tablets make up a large portion of eMMC recovery cases

Trust PITS Global for eMMC Memory Chip Data Recovery

At PITS Global Data Recovery Services, we have the tools, training, and cleanroom infrastructure to recover data from even the most complex cases involving eMMC storage. Our engineers regularly work with:

  • eMMC chips from GPS units, smartphones, drones, and tablets
  • Physically damaged or detached chips
  • Deleted or corrupted data in flash memory, often requiring specialized flash drive data recovery solutions.

Call to Action

Lost data on a GPS, smartphone, or other device with eMMC storage? Let us help.

  • Call 888.611.0737 for immediate assistance
  • Submit a Recovery Request

Get your lost files back  safely, securely, and quickly.

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