How to use Pogo Adapter
BGA ROM Swap
BALL GRID ARRAY chips are harder to solder.
Example Problems
WSON / USON / DFN-8 package, 4mm × 3mm
Modern have drives have adopted a new DFN-8 Profile that is the same technology for previous hard drive pcb rom/bios chips. Its just in a smaller package known as WSON8/USON8.
| Brand | Example part | PCB | Voltage | Density | Package (for HDD ROM) | Notes | Algorithm |
|---|---|---|---|---|---|---|---|
| Winbond | W25Q64JV | 3.3 V | 64 Mbit (8 MB) | WSON/USON-8 (small) | Newer 3.3 V SPI ROM, shows up on some HDD/SSD PCBs. | ||
| Winbond | W25Q128JV | 3.3 V | 128 Mbit (16 MB) | WSON/USON-8 (4×4 / similar) | Common external ROM on newer boards. | ||
| Winbond | W25Q256JV | 3.3 V | 256 Mbit (32 MB) | WSON/USON-8 | Used where big ROM is needed. | ||
| Winbond | W25Q64JW | 1.8 V | 64 Mbit (8 MB) | USON-8 (often 4×3 mm) | Low-voltage ROM; you must program at 1.8 V. | ||
| Winbond | W25Q128JW | 1.8 V | 128 Mbit (16 MB) | USON-8 (4×3 mm) | Very common on newer Seagate/WD. | ||
| Winbond | W25Q256JW | 1.8 V | 256 Mbit (32 MB) | USON-8 (4×3 mm) | Frequently seen on large-capacity HDD/SSD as ROM. | ||
| Macronix | MX25U1635F | 1.8 V | 16 Mbit (2 MB) | USON-8 4×3 mm | Small ROM on some WD/Toshiba boards. | ||
| Macronix | MX25U3235F | 1.8 V | 32 Mbit (4 MB) | USON/WSON-8 | Low-voltage SPI ROM. | ||
| Macronix | MX25U6435F | 1.8 V | 64 Mbit (8 MB) | USON/WSON-8 | Common mid-size external ROM. | ||
| Macronix | MX25U12835F | 1.8 V | 128 Mbit (16 MB) | USON/WSON-8 | Often used as HDD/SSD ROM. | ||
| Macronix | MX25U25635F | 1.8 V | 256 Mbit (32 MB) | USON/WSON-8 | Larger low-voltage ROM. | ||
| GigaDevice | GD25Q128E | 3.3 V | 128 Mbit (16 MB) | USON/WSON-8 (4×4 mm) | 3.3 V SPI ROM in small no-lead package. | ||
| GigaDevice | GD25LQ128E | 1.8 V | 128 Mbit (16 MB) | USON/WSON-8 | Low-voltage variant; treat like Winbond JW/MX U-series. | ||
| Micron | MT25QU128 (low-V) | 1.8 V | 128 Mbit (16 MB) | WSON/USON-8 | Low-voltage version; same idea as JW/U-series. | ||
| Winbond | Q33JWUS13 | Seagate 100871827 Rev A |
PCB has 2 of these identical chips. Chip A: (closest to mcu) Bootloader + adaptives + main LZMA firmware Chip B: Read-channel / motor / DSP firmware. Not needed for pcb swap. |
MX25U1631@USON8(4*3) Saved 2mb file |
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| Macronix | MX25U1631F | WD 001-0B40829 | |||||
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IS25WP032 |
WD 006-0B44198 | PCB has 2 of these identical chips | |||||
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AJ1910 25LH32 U8Q089 |
WD 006-0B44198 | PCB has 2 of these identical chips |