MICRON · UFS · Top-mark hint
JZ178
Secondary repair reference reports JZ178 as Micron UFS: storage 64GB. Exact Micron production part number, package/ball map, protocol revision and electrical compatibility are not established by this source.
⚠ Category and protocol disagree. Confirm the interface with a programmer.
Identity & specification
| Part number | JZ178 |
|---|---|
| Manufacturer | MICRON |
| Record type | Top-mark hint |
| Top marking | JZ178 |
| Aliases | Not established |
| Storage type | UFS |
| Capacity | 64 GB |
| RAM | Discrete / No RAM |
| Protocol | eMMC 5.1 |
| Package | mobile eMCP / managed NAND BGA |
| Ball count | Not established |
| Pinout family | Not established |
| Voltage notes | Not established |
| Observed in devices | Not established |
Evidence
Technician reference
Source: Mic-checker technician marking database
Verification status: secondary_top_mark_reference_requires_exact_pn_programmer_verification
Source score 0.62 — dataset metadata, not a probability of fitment.
Screening data incomplete
- ✗ Exact identity from a strong source
- ✓ Capacity
- ✓ Protocol version
- ✗ Ball count
- ✗ No open conflict
Programmer verification required. Read CID/EXT_CSD or UFS descriptors and package geometry before any replacement.
A matching part number or package does not prove donor compatibility. Before replacement confirm the ball map, VCC/VCCQ, protocol generation, capacity geometry, DRAM training (MCP), CID/EXT_CSD or UFS descriptors, RPMB and OEM provisioning.