SSD Controller Technical Reference
WD/SanDisk Polaris MP16+ Controller Reference
The WD Black SN770 uses a proprietary SanDisk Polaris MP16+ tri-core controller with a DRAM-less HMB design. No dedicated PC-3000 Active Utility exists. ACELab's PC-3000 SSD supported-controller list does not currently cover this controller. For context on the SSDs we do recover, see our SSD data recovery page.
WD/SanDisk Polaris MP16+ is not on the current PC-3000 SSD supported-controller list
WD/SanDisk Polaris MP16+ does not appear on the current ACELab PC-3000 SSD supported-controller list (PC-3000 SSD / PC-3000 SSD Extended 3.9.8) as of 2026-05-12. Case-by-case feasibility only. Contact us before shipping anything and we will tell you in writing whether we can do anything for your specific drive.
Source of truth: ACELab PC-3000 SSD supported-drives list. Internal evidence file: src/lib/ssd-support-matrix.ts.
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 | Not supported (absent from the ACELab list) |
| Chip-Off Viability | Not viable (controller-bound data path) |
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 the zero-byte SSD diagnostic reference 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
- 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.
- KERNEL_DATA_INPAGE_ERROR BSOD
- CRITICAL_PROCESS_DIED BSOD
- Drive vanishes from BIOS after crash
- System cannot complete POST with drive installed
How Is Data Recovered from a Failed WD/SanDisk Polaris MP16+ SSD?
Controller-class recovery starts by keeping the original board alive, reading controller state, and rebuilding the Flash Translation Layer from surviving NAND metadata. That firmware-level path depends on PC-3000 SSD utility coverage, which is not available for the WD/SanDisk Polaris MP16+.
Firmware access that needs Safe Mode or a volatile loader happens before any imaging. File-copy software never reaches this stage, since it needs a controller that already enumerates to the host. When the WD/SanDisk Polaris MP16+ also handles decryption, chip-off returns unreadable data, so the original silicon has to stay in the loop.
Holding a controller stable long enough to expose ROM state, firmware behavior, and NAND metadata without letting the drive write over itself is the core of controller-class recovery. Our SSD data recovery overview covers intake & triage, why SSDs report 0 bytes explains capacity failures, & how SSD controller encryption works explains why the original silicon matters.
- WD/SanDisk Polaris MP16+ failures usually break the Flash Translation Layer, firmware boot path, or local power rail before macOS or Windows sees a mountable volume. Symptoms such as Drive bricked after Dashboard update, Firmware update failure, SSD not detected after WD software update are useful to recognize, but on this controller they do not unlock a tooling path we can offer in-lab.
- WD/SanDisk Polaris MP16+ is not on ACELab's PC-3000 SSD supported-controller list (PC-3000 SSD / PC-3000 SSD Extended 3.9.8). Without firmware utility coverage, the controller's mapping tables, internal loader, and any factory diagnostic mode are inaccessible to us, which means no firmware-level recovery is on the table.
- Desoldering the NAND chips off a WD/SanDisk Polaris MP16+ drive returns scrambled, ECC-coded pages, and ciphertext where the controller's encryption is active, none of which can be turned back into files without reviving the original controller through tooling we do not currently have for this controller.
Frequently Asked Questions
Can software recover data from a dead WD/SanDisk Polaris MP16+?
Why not use chip-off recovery on Western Digital SSDs?
Does Rossmann recover data from WD/SanDisk Polaris MP16+ drives?
Can you recover deleted files from a WD/SanDisk Polaris MP16+ SSD?
Since 2008
Established
As Featured In
Have a WD/SanDisk Polaris MP16+ drive?
The WD/SanDisk Polaris MP16+ is not on ACELab's PC-3000 SSD supported-controller list, so no firmware utility we operate covers it. We treat it as a case-by-case feasibility question: contact us with your exact model before shipping.