NAND structure
| Partition name
 | 
Offset
 | 
Size
 | 
Bis Partition ID
 | 
Description
 | 
| N/A
 | 
0x0
 | 
?
 | 
20
 | 
GPT header, partition ID also provides raw access to all partitions
 | 
| PRODINFO
 | 
0x00004400
 | 
0x003FBC00
 | 
27
 | 
"CAL0" raw partition containing set:cal data
 | 
| PRODINFOF
 | 
0x00400000
 | 
0x00400000
 | 
28
 | 
FAT12 filesystem, additional calibration?
 | 
| BCPKG2-1-Normal-Main
 | 
0x00800000
 | 
0x00800000
 | 
21
 | 
For all these packages, data starts at offset 0x4000. This is installed from "package2": on retail it's from FIRM-A 0100000000000819, on devunit(?) it's from FIRM-C, 010000000000081B.
 | 
| BCPKG2-2-Normal-Sub
 | 
0x01000000
 | 
0x00800000
 | 
22
 | 
Identical to BCPKG2-1-Normal-Main, probably used as a backup partition.
 | 
| BCPKG2-3-SafeMode-Main
 | 
0x01800000
 | 
0x00800000
 | 
23
 | 
This is installed from "package2" in firmware package B, 010000000000081A.
 | 
| BCPKG2-4-SafeMode-Sub
 | 
0x02000000
 | 
0x00800000
 | 
24
 | 
Identical to BCPKG2-3-SafeMode-Main.
 | 
| BCPKG2-5-Repair-Main
 | 
0x02800000
 | 
0x00800000
 | 
25
 | 
Unknown what title this originates from.
 | 
| BCPKG2-6-Repair-Sub
 | 
0x03000000
 | 
0x00800000
 | 
26
 | 
Identical to BCPKG2-5-Repair-Main.
 | 
| SAFE
 | 
0x03800000
 | 
0x04000000
 | 
29
 | 
FAT32 filesystem
 | 
| SYSTEM
 | 
0x07800000
 | 
0xA0000000
 | 
31
 | 
FAT32 filesystem
 | 
| USER
 | 
0xA7800000
 | 
0x680000000
 | 
30
 | 
FAT32 filesystem
 | 
PRODINFOF
PRODINFOF
├── Certifications
│   └── WirelessCertification.png
└── ptd
    ├── DeviceIdWithEmsBit.dat
    ├── Ecid.dat
    ├── prodCode.dat
    └── log
        ├── Process_asm1.log
        ├── Process_board1.log
        ├── TestFlagLine.log
        ├── TestFlagQc.log
        ├── AGING
        │   └── Sequence.log
        ├── BOARD_TEST
        │   └── Sequence.log
        ├── BOARD_WIRELESS
        │   └── Sequence.log
        ├── FINAL_CHECK
        │   └── Sequence.log
        ├── LCD_AND_KEY
        │   └── Sequence.log
        └── USB_AND_HP
            └── Sequence.log