How Much Does Monolithic NAND Recovery Cost?
Monolithic NAND recovery costs $1,200–$1,500, with a 50% deposit required before work begins. Every case starts with a free evaluation & a firm quote. If we can't recover your data, you don't pay. Call (512) 212-9111 or request an evaluation online.
| Service Tier | Price | ETA |
|---|---|---|
| Simple Copy (device functional) | $200 | 3-5 business days |
| File System Recovery | $300–$600 | 2-4 weeks |
| PCB Repair (shorted components) | $600–$900 | 3-6 weeks |
| Chip-Off / Monolithic NAND Extraction | $1,200–$1,500 | 4-8 weeks |
Rush service available: +$100 rush fee to move to the front of the queue. All prices + tax. No data, no recovery fee.
What Devices Use Monolithic NAND?
Monolithic NAND packages are used in compact storage devices where space is too limited for separate controller & memory chips. The smaller the device, the more likely it uses a monolithic design.
- USB Flash Drives (under 64GB)
- Most compact USB sticks use a single monolithic chip that combines the USB interface controller, wear-leveling logic, & NAND flash on one die. When the controller portion fails, the entire device disappears from the OS. There is no separate chip to bypass.
- MicroSD & SD Cards
- MicroSD cards are monolithic by necessity. The 11mm x 15mm form factor leaves no room for discrete components. The SD controller, NAND, & interface logic all occupy a single die inside the plastic housing.
- eMMC Modules
- Embedded MultiMediaCard modules in tablets, budget laptops, & IoT devices use a BGA package containing the controller & NAND together. These are soldered directly to the device motherboard. Recovery requires desoldering the eMMC package first, then reading its NAND contents.
- Compact M.2 2230 Modules
- Some compact M.2 2230 NVMe drives (used in Steam Deck, Microsoft Surface, & ultrabooks) use tightly integrated packages where the controller & a single NAND die share a BGA footprint. Standard NVMe tools may fail if the controller is dead; physical access to the NAND die becomes necessary.
How Does Monolithic NAND Recovery Work?
Monolithic NAND recovery bypasses the dead controller by reading flash memory directly from the silicon die. The process requires physical access to the chip's internal data lines, followed by software reconstruction of the raw data into readable files.
- Free evaluation. We examine the device, identify the monolithic chip package, & determine whether the NAND is accessible. You get a firm quote before any paid work starts.
- Pinout identification. The technician identifies which pads on the monolithic package connect to the NAND data lines, control lines, & power rails. This varies by manufacturer & model.
- Physical connection. Fine-gauge wires are bonded to the identified pads, or a custom adapter is fitted to the chip's BGA balls. This connects the raw NAND to our reading equipment.
- Raw NAND dump. A dedicated NAND reader pulls a complete dump of every page & block in the NAND. This data is scrambled & encoded; it isn't a file system yet.
- Data reconstruction. XOR descrambling removes the hardware scrambling layer. ECC algorithms correct bit errors. The Flash Translation Layer mapping is rebuilt to convert physical NAND addresses into logical sectors.
- File extraction & delivery. The reconstructed data is mounted as a file system & verified against expected directory structures. Files are delivered on your choice of return media.
Why Do Standard Recovery Tools Fail on Monolithic NAND?
Recovery software (Disk Drill, R-Studio, PhotoRec, EaseUS) requires a functioning storage interface. The software sends ATA, NVMe, or SCSI commands through the operating system's block device layer. A monolithic NAND device with a dead controller presents no block device. The OS doesn't enumerate it. There is nothing for the software to talk to.
Even hardware-based recovery platforms like the PC-3000 Express (SATA/PATA) or PC-3000 Portable III (NVMe) operate through standard storage protocols. The PC-3000 SSD utility communicates with SSD controllers in technological/diagnostic mode, but this still requires a responding controller. A monolithic device with a dead controller doesn't respond in any mode.
The only path is to bypass the controller entirely & access the NAND flash memory at the physical level. This means identifying the data I/O pins on the monolithic package, establishing electrical contact with them, and reading raw NAND pages directly. A dedicated NAND reader connects to the flash through these physical test points, treating the memory as a standalone chip rather than part of an integrated device.
Pinout Identification and Wire Bonding
Pinout identification is the process of mapping which physical pads on a monolithic package connect to NAND data lines (I/O0 through I/O7), control signals (CE#, RE#, WE#, ALE, CLE, WP#), and power rails (VCC, VSS). Without this map, there is no way to issue read commands to the NAND die.
Monolithic packages come in several physical formats, each requiring a different access method:
- TSOP-48 Exposed Pads
- Older monolithic USB drives expose TSOP-48 pinout pads on the package exterior. These can be clipped or soldered to directly. The pin mapping follows ONFI or JEDEC standards for the NAND manufacturer (Toshiba/Kioxia, Samsung, Micron, Hynix), but the controller vendor may remap pins for their specific design.
- BGA Packages
- Modern monolithic devices use Ball Grid Array packaging where solder balls on the bottom of the chip connect to the PCB. Accessing NAND data lines requires either (a) desoldering the package & probing the exposed balls directly, or (b) identifying test pads that the manufacturer left accessible on the PCB for factory testing. A Zhuo Mao BGA rework station handles the desoldering with controlled thermal profiles.
- COB (Chip on Board)
- Budget USB drives & some SD cards use chip-on-board construction: the bare silicon die is bonded directly to the PCB with gold wire bonds, then covered in epoxy. The epoxy must be chemically or mechanically removed to expose the wire bond pads. This is the most labor-intensive access method & carries higher risk of damage to the bond wires.
Once pinouts are identified, fine-gauge wires (typically 30-40 AWG) are bonded to each pad using a Hakko FM-2032 microsoldering iron. The wires connect to a NAND reader adapter. Thermal management is critical during soldering: the monolithic die contains both the controller & NAND on one substrate, and excessive heat can damage the NAND cells we're trying to read.
Raw NAND Data Reconstruction
A raw NAND dump is not usable data. The controller applies multiple transformation layers between the file system and the physical NAND pages. Reconstructing usable files requires reversing each layer in sequence.
XOR Descrambling
Most NAND controllers apply an XOR scrambling pattern to data before writing it to flash. This spreads the bit distribution evenly across cells, preventing patterns of all-zeros or all-ones that degrade NAND reliability. The scrambling key is unique to the controller model (not the individual device). NAND recovery tools maintain databases of known XOR keys for common controller families. For undocumented controllers, the key must be derived through pattern analysis of known data structures in the dump.
ECC Correction
NAND flash cells degrade with each program/erase cycle. The controller uses Error Correction Codes (BCH or LDPC, depending on the NAND generation) to detect & correct bit errors on read. When reading raw NAND without the controller, the ECC must be applied in software. Modern 3D TLC & QLC NAND requires LDPC codes that correct dozens of bit errors per 1KB page. Without correct ECC parameters (code length, generator polynomial, interleaving depth), the data remains corrupted.
FTL Reconstruction
The Flash Translation Layer maps logical block addresses (what the file system sees) to physical NAND page addresses (where data actually sits in the flash). Each controller implements its own FTL algorithm. Block mapping, page mapping, hybrid mapping, and log-structured approaches all produce different physical data layouts. Reconstructing the FTL means reading the controller's metadata pages (usually stored in reserved NAND blocks), parsing its mapping tables, & rebuilding the logical-to-physical address translation. If metadata blocks are corrupted, partial reconstruction is possible using file system signatures & file carving.
Monolithic vs. Multi-Chip: How Does Recovery Differ?
Standard chip-off recovery works on multi-chip SSDs by desoldering individual NAND packages & reading them on standalone chip readers. Monolithic NAND recovery differs in several ways that affect complexity, duration, & cost.
| Factor | Multi-Chip (Standard Chip-Off) | Monolithic NAND |
|---|---|---|
| NAND Access | Desolder discrete chips; read in standard adapter | Identify pinouts on fused package; wire-bond or probe pads |
| Chip Reader Compatibility | Standard TSOP-48 or BGA adapters fit most discrete NAND | Custom adapters or manual wire bonding required for each package type |
| Interleaving | Data striped across 2, 4, 8, or 16 separate chips | Single die; internal interleaving within one package |
| Encryption Risk | Multi-chip SSDs often use always-on AES-256 (Samsung, Apple) | Small flash devices (USB, SD) rarely implement hardware encryption |
| Physical Risk | BGA rework; risk of pad lifting during desolder | Wire bonding to micro-scale pads; risk of bridge shorts or pad damage |
The lower encryption risk on monolithic flash devices is the key advantage. Most USB drives & SD cards don't implement controller-bound AES encryption. If the NAND is physically readable, the data can be reconstructed. This contrasts with modern NVMe SSDs where a dead controller means lost encryption keys & unrecoverable ciphertext.
Common Monolithic NAND Failure Modes
Monolithic NAND devices fail differently than multi-chip SSDs. The integrated design means a single point of failure can disable the entire device with no fallback path through standard tools.
- Controller silicon failure. The integrated controller portion of the monolithic die burns out due to ESD, power surge, or manufacturing defect. The device is invisible to every computer it's connected to. The NAND portion may be intact, but there's no interface to reach it.
- Broken USB connector. The USB plug snaps off the PCB, tearing traces that connect to the monolithic chip. If the damage is limited to the connector & traces, the NAND data lines inside the monolithic package are unaffected. Recovery bypasses the connector entirely.
- Water or corrosion damage. Liquid exposure corrodes the fine traces between the monolithic die & the PCB pads. The controller may partially function (device detected but returns I/O errors) or fail entirely. Cleaning & direct NAND access bypasses the corroded interface traces.
- Firmware corruption in the controller. The controller's internal firmware becomes corrupted (often from unsafe ejection or power loss during a write). The device may appear with 0 bytes capacity, show an incorrect model name, or lock into a factory test mode. On monolithic devices, firmware isn't stored on a separate ROM chip; it lives in reserved NAND blocks managed by the controller itself.
- NAND wear-out. Flash cells reach their program/erase endurance limit. Read errors accumulate beyond what the ECC can correct in real-time. The controller marks blocks as bad until capacity drops to zero or the device becomes unreadable. Raw NAND access with software ECC applied at wider thresholds can recover data that the real-time controller couldn't.
When Monolithic NAND Recovery Won't Work
Not every monolithic device is recoverable. We'll tell you during the free evaluation if the prognosis is poor. No data, no charge applies regardless.
- Cracked or shattered silicon die. If the monolithic package is physically broken and the silicon is fractured, the NAND cells are destroyed. No reading method can recover data from damaged silicon.
- Fire-damaged devices. Sustained high temperature (above 300C) destroys NAND cell charge states. Short exposure may leave data recoverable, but prolonged fire damage makes the silicon unreliable at the cell level.
- Undocumented proprietary controllers. Some monolithic chips use controllers with no publicly known pinout & no support in PC-3000 or any flash reader database. Reverse-engineering an unknown pinout is possible but adds time & cost. We'll quote this upfront.
- TRIM-erased data. If the device supported TRIM & the OS executed TRIM commands before the failure, the controller unmapped those logical addresses and scheduled garbage collection. Once garbage collection completes, the erased NAND pages read as 0xFF and the data is gone. No lab can reconstruct deallocated blocks. Most USB & SD devices don't support TRIM, but some newer SD Express & UFS cards do.
Frequently Asked Questions
What is monolithic NAND and why can't normal tools recover it?
How much does monolithic NAND recovery cost?
Which devices use monolithic NAND?
Can you recover data from a physically broken USB flash drive?
Is monolithic NAND recovery the same as chip-off?
How long does monolithic NAND recovery take?
USB drive or SD card not detected?
Free evaluation. Firm quote. No data, no fee. Monolithic NAND recovery from $1,200–$1,500.