SSD Controller Recovery
WD/SanDisk Polaris MP16+ Data Recovery
The WD Black SN770 uses a proprietary SanDisk Polaris MP16+ tri-core controller with a DRAM-less HMB design and a hardcoded 64MB HMB ceiling. WD's proprietary architecture limits third-party recovery tool development; no dedicated PC-3000 Active Utility exists. Under rapid write/erase cycles or unexpected power loss, the rigid HMB allocation fails to flush to NAND, virtually guaranteeing severe FTL corruption. PC-3000 SSD access for this controller is limited. Recovery starts at $200. No diagnostic fee.
WD/SanDisk Polaris MP16+ Specifications
| Manufacturer | Western Digital |
| Interface | NVMe Gen4 |
| NAND Types | 3D TLC |
| DRAM Cache | No (DRAM-less) |
| Channels | 4 |
| PC-3000 Support | Limited / Generic NVMe |
| Chip-Off Viability | Not viable (AES-256 hardware encryption) |
WD proprietary architecture limits third-party tool support. Tri-core, no hardware AES-256 encryption.
Affected SSD Models
The WD/SanDisk Polaris MP16+ is deployed in the following consumer drives. A failure in this controller impacts access to the NAND flash on these specific models.
| # | Drive Model | Interface |
|---|---|---|
| 1 | WD Black SN770 | NVMe Gen4 |
| 2 | WD Blue SN580 | NVMe Gen4 |
Common Failure Modes and Symptoms
Each failure mode below describes a specific way the WD/SanDisk Polaris MP16+ fails and the symptoms you will observe. If your SSD matches any of these patterns, do not run recovery software; it cannot communicate with a dead controller. See why SSDs report 0 bytes for a deeper technical explanation of controller and FTL failures.
- WD Dashboard firmware corruption
Firmware corruption from WD Dashboard updates. WD's proprietary controller architecture limits third-party tool development; no dedicated PC-3000 Active Utility exists.
- Drive bricked after Dashboard update
- Firmware update failure
- SSD not detected after WD software update
- Drive shows 0 bytes after update attempt
- HMB FTL tearing from power loss
The SN770 stores its Flash Translation Layer in host system RAM via a rigid 64MB Host Memory Buffer allocation. Any system crash or power loss deallocates this RAM before the controller can write its mapping state to NAND, causing instant FTL corruption and PCIe bus lockups on subsequent boot.
- Drive disappeared after system crash
- PCIe bus lockup preventing system boot
- Windows shows Critical NVM Subsystem error
- Unknown Device in Device Manager
- BSOD trigger / system instability
When the SN770 firmware panics, it frequently triggers Windows Blue Screens of Death, specifically KERNEL_DATA_INPAGE_ERROR or CRITICAL_PROCESS_DIED. The drive may completely vanish from BIOS after the crash and report 0 bytes if it re-enumerates.
- KERNEL_DATA_INPAGE_ERROR BSOD
- CRITICAL_PROCESS_DIED BSOD
- Drive vanishes from BIOS after crash
- System cannot complete POST with drive installed
WD/SanDisk Polaris MP16+ Recovery Process
No dedicated PC-3000 Active Utility exists for WD proprietary NVMe controllers. WD hardcoded a rigid 64MB HMB ceiling into the controller; rapid write/erase cycles or unexpected power loss deallocate system RAM before the controller can flush its FTL state to NAND, virtually guaranteeing severe FTL corruption upon subsequent boot.
- Connect drive to PC-3000 Portable III via M.2 NVMe adapter
- Use PC-3000 NVMe Universal Utility (no dedicated WD Active Utility exists)
- Disable the drive's internal Thermal Calibration Crash (TCC) routine to stabilize the controller during extraction
- Manage controller temperature in a thermally controlled environment to prevent further crashes
- Image data sector-by-sector with careful timeout management to prevent PCIe bus lockups
Equipment Used
- PC-3000 Portable III
- PC-3000 NVMe Universal Utility
- FLIR thermal camera
Learn more: how SSD controller encryption affects recovery | how wear leveling works
Transparent Pricing for NVMe Gen4 SSD Recovery
Flat-rate pricing with no diagnostic fees. The cost to recover data from a WD/SanDisk Polaris MP16+-based SSD depends on the severity of the failure. For the full diagnostic path across controller, firmware, and NAND-level failures, see our SSD data recovery flagship; deleted-file cases are governed by DZAT and NAND physics. No data, no recovery fee. Full SSD recovery cost breakdown.
| Tier | What It Covers | Price |
|---|---|---|
| Simple Copy | Your NVMe drive works, you just need the data moved off it | $200 |
| File System Recovery | Your NVMe drive isn't showing up, but it's not physically damaged | From $250 |
| Circuit Board Repair | Your NVMe drive won't power on or has shorted components | $600–$900 |
| Firmware Recovery | Your NVMe drive is detected but shows the wrong name, wrong size, or no data | $900–$1,200 |
| PCB / NAND Swap | Your NVMe drive's circuit board is severely damaged and requires NAND chip transplant to a donor PCB | $1,200–$2,500 |
A donor drive is a matching SSD used for its circuit board. Typical donor cost: $40–$100 for common models, $150–$300 for discontinued or rare controllers. +$100 rush fee to move to the front of the queue.
Frequently Asked Questions
Can software recover data from a dead WD/SanDisk Polaris MP16+?
Why not use chip-off recovery on Western Digital SSDs?
How much does WD/SanDisk Polaris MP16+ data recovery cost?
Can you recover deleted files from a WD/SanDisk Polaris MP16+ SSD?
Need WD/SanDisk Polaris MP16+ Recovery?
Ship your NVMe Gen4 SSD to our Austin, TX lab. Free evaluation, no diagnostic fee. If we recover your data, you pay the quoted tier. If not, you pay nothing.