A client in Bristol contacted Bristol Data Recovery after their SanDisk Ultra SDXC memory card stopped being detected by any device. The reported issues included:
- The SD card was not recognized by the BIOS, Windows, or macOS, making it inaccessible.
- Multiple devices (laptops, cameras, and card readers) failed to detect the card.
- The card contained wedding photographs from two years ago, with no backup available.
- DIY recovery tools failed to detect the card, requiring professional forensic recovery.
Since an undetectable SD card may suffer from NAND degradation, controller failure, or file system corruption, advanced forensic recovery techniques were required.
Our Expertise in SanDisk SDXC Card Recovery
With 25 years of experience, Bristol Data Recovery specialises in:
✔ Recovering data from undetected and corrupted memory cards
✔ NAND chip-off recovery and SD card controller repair
✔ Using advanced tools like Acelabs PC-Flash, SoftCenter Flash Extractor, and Chip-Off Forensics
Diagnosis & Recovery Process
Upon receiving the SanDisk Ultra SDXC memory card, our engineers conducted a detailed forensic assessment. The key findings included:
- The card’s controller was malfunctioning, preventing it from being detected by devices.
- The NAND memory chip was intact, meaning data recovery was possible.
- The file system was partially corrupted, affecting directory structure readability.
To successfully recover the client’s lost wedding photos, we implemented a multi-step forensic SD card recovery strategy:
Step 1: Safe NAND Chip-Off Extraction
- Used a heat-free de-soldering technique to safely remove the NAND memory chip.
- Placed the chip into an Acelabs PC-Flash and SoftCenter Flash Extractor for direct data access.
Step 2: Logical Data Reconstruction & File Recovery
- Manually rebuilt the SD card’s corrupted file system to restore missing images.
- Applied bad sector handling techniques to extract maximum data.
Step 3: Data Validation & Quality Assurance
- Extracted and validated all wedding photographs to ensure they were intact.
- Used JPEG repair tools to fix any partially corrupted images.
Step 4: Secure Data Transfer & Prevention Measures
- Conducted final validation checks to confirm all recovered photos were intact.
- Successfully transferred the restored images to a secure external USB drive, formatted for client use.
- Provided guidance on SD card maintenance, safe storage, and data backup best practices.
The Result
We successfully recovered 99.8% of the client’s wedding photographs, including:
✅ High-resolution wedding images and videos
✅ Edited versions of wedding pictures stored on the card
✅ Backup RAW files from the original wedding shoot
The client was able to retrieve all their irreplaceable wedding memories without data loss.
Why Choose Bristol Data Recovery for SanDisk SDXC Card Recovery?
✅ 25 Years of Expertise – Specialists in memory card failure and data recovery.
✅ Forensic NAND Chip-Off Recovery – Restoring data even from undetected cards.
✅ Fast & Reliable Service – Trusted by photographers, individuals, and businesses for 25 years.
If your SanDisk Ultra SDXC card is not detected by your BIOS or operating system, contact Bristol Data Recovery today for expert memory card data recovery services!