Samsung TAB P7500 no GPT HI guys i need help with a P7500 hard bricked I tried to write dump with easy jtag but error for missing Gpt i tried to write pit always in easy jtag but nothing .. i don't know which is the correct procedure for repartition thanks |
P7500 it's a NVidia device Nvidia devices are have athother partition table - PT |
1 Attachment(s) hi and thanks so exist a method for this model fot rebuild partition ? this is what I managed to get .. but no power on Attachment 370773 |
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As Samsung partiton table readed from PIT file And you see "PT" partition - It's a Nvidia Partition table We can't fully add support Nvidia on Samsung. It's a hard work. Nvidia have a blob keys, without it device not work p.s. you can restore Nvidia devices only if you have backup ROM2/3 and begin of ROM1 (200-500MB) at you screen you have blank ROM2/3 - you can't restore it |
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hi friend sorry a last thing .. if i've full dump is possible extract rom1 , rom 2 and rom 3 ? thanks |
Nvidia Tegra devices have individual device "blob" keys. Nvidia Tegra devices have "linear" adressing. zero address is the beginning of rom2 Further continuation is written in rom3, and further rom1 therefore, for nvidia, the data recorded in section 0 of rom1 have an address that is the sum of the length of rom2 and rom3 for example rom2 and rom3 have a size of 4mb (0x400000) data at the beginning of rom1 for the processor will have an address (0x800000) Nvidea keys is stored at BCT partition BCT partittion are placed uasially at rom3 or begin of rom1, depended of size of partitions it's a example: eMMC Init returned = 0 EMMC Device Information : EMMC CID: 1501004D414734464112090E8A593F77 EMMC CSD: D02701320F5903FFF6DBFFEF8A404067 EMMC Manufacture : SAMSUNG , EMMC NAME: MAG4FA , HEX: 4D4147344641 , S/N: 090E8A59 , rev. 0x12 EMMC Manufacture ID: 0x15 , OEM ID: 0x00 , Device Type: BGA (Discrete embedded) , Date: 3/2012 EMMC ROM 1 (Main User Data) Capacity: 15028 MB (0003AB400000) EMMC ROM 2/3 (Boot Partition 1/2) Capacity: 512 KB (000000080000) EMMC RPMB (Replay Protected Memory Block) Capacity: 128 KB (000000020000) EMMC Permanent Write Protection: No EMMC Temporary Write Protection: No EMMC BootArea Write Protection: No Extended CSD Information : Extended CSD rev: 1.5 (MMC 4.41) Boot configuration [PARTITION_CONFIG]: 0x00 , Boot from: no boot Boot Bus Config: 0x00 , width 1bit H/W Reset Function [RST_N_FUNCTION]: 0x00, RST_n signal is temporarily disabled Supported partition features [PARTITIONING_SUPPORT]: 0x03 Device supports partitioning features Device can have enhanced technological features in partitions and user data area Partition Settings [PARTITION_SETTING_COMPLETED]: 0x00 Backup saved: MAG4FA_090E8A59_20181114_144106.extcsd Scanning soft partitions NVidia header is found Partition: mmcblk0p0 (BCT) Address in , [000000000000 - 000000400000], size: 000000400000 (4,00 MB) Partition: mmcblk0p1 (PT) Address in ROM1, [000000300000 - 000000500000], size: 000000200000 (2,00 MB) Partition: mmcblk0p2 (EBT) Address in ROM1, [000000500000 - 000000B00000], size: 000000600000 (6,00 MB) Partition: mmcblk0p3 (GP1) Address in ROM1, [000000B00000 - 000000D00000], size: 000000200000 (2,00 MB) Partition: mmcblk0p4 (SOS) Address in ROM1, [000000D00000 - 000001300000], size: 000000600000 (6,00 MB) Partition: mmcblk0p5 (LNX) Address in ROM1, [000001300000 - 000001B00000], size: 000000800000 (8,00 MB) Partition: mmcblk0p6 (APP) Address in ROM1, [000001B00000 - 000031B00000], size: 000030000000 (768 MB) Partition: mmcblk0p7 (CAC) Address in ROM1, [000031B00000 - 000069F00000], size: 000038400000 (900 MB) Partition: mmcblk0p8 (MSC) Address in ROM1, [000069F00000 - 00006A100000], size: 000000200000 (2,00 MB) Partition: mmcblk0p9 (PIA) Address in ROM1, [00006A100000 - 00008A100000], size: 000020000000 (512 MB) Partition: mmcblk0p10 (SEC) Address in ROM1, [00008A100000 - 00008B500000], size: 000001400000 (20,0 MB) Partition: mmcblk0p11 (USP) Address in ROM1, [00008B500000 - 000094100000], size: 000008C00000 (140 MB) Partition: mmcblk0p12 (PDA) Address in ROM1, [000094100000 - 000095500000], size: 000001400000 (20,0 MB) Partition: mmcblk0p13 (UDA) Address in ROM1, [000095500000 - 0003AB100000], size: 000315C00000 (12,3 GB) Partition: mmcblk0p14 (GPT) Address in ROM1, [0003AB100000 - 0003AB300000], size: 000000200000 (2,00 MB) NVidia header successfully parsed at this exmple BCT partition is stored at rom2/3 and ROM1 ROM2: 0.5MB ROM3: 0.5MB ROM1: 3MB (PT) partittion stores at 0x000000300000 Address in ROM1, after end of BCT and example 2 Setting bus width to 8 Bit Setting frequence to 21 Mhz eMMC Init returned = 0 EMMC Device Information : EMMC CID: 11010030333247373400088941B712F7 EMMC CSD: D02700320F5903FFFFFFFFE78640009B EMMC Manufacture : TOSHIBA , EMMC NAME: 032G74 , HEX: 303332473734 , S/N: 088941B7 , rev. 0x00 EMMC Manufacture ID: 0x11 , OEM ID: 0x00 , Device Type: BGA (Discrete embedded) , Date: 1/2015 EMMC ROM 1 (Main User Data) Capacity: 29820 MB (000747C00000) EMMC ROM 2/3 (Boot Partition 1/2) Capacity: 4096 KB (000000400000) EMMC RPMB (Replay Protected Memory Block) Capacity: 4096 KB (000000400000) EMMC Permanent Write Protection: No EMMC Temporary Write Protection: No Extended CSD Information : Extended CSD rev: 1.7 (MMC 5.0, MMC 5.01) Boot configuration [PARTITION_CONFIG]: 0x40 , Boot from: no boot Boot Bus Config: 0x00 , width 1bit H/W Reset Function [RST_N_FUNCTION]: 0x01, RST_n signal is permanently enabled Supported partition features [PARTITIONING_SUPPORT]: 0x07 Device supports partitioning features Device can have enhanced technological features in partitions and user data area Device can have extended partitions attribute Partition Settings [PARTITION_SETTING_COMPLETED]: 0x00 Backup saved: 032G74_088941B7_20180215_120713.extcsd EMMC Init completed. Scanning soft partitions NVidia header is found Partition: mmcblk0p0 (BCT) Address in BOOT1+BOOT2, [000000000000 - 000000800000], size: 000000800000 (8,00 MB) Partition: mmcblk0p1 (PT) Address in ROM1, [FFFFFFFFFFC00000 - FFFFFFFFFFE00000], size: 000000200000 (2,00 MB) Partition: mmcblk0p2 (EBT) Address in ROM1, [FFFFFFFFFFE00000 - 000000400000], size: 000000600000 (6,00 MB) Partition: mmcblk0p3 (LGE) Address in ROM1, [000000400000 - 000000600000], size: 000000200000 (2,00 MB) Partition: mmcblk0p4 (EKS) Address in ROM1, [000000600000 - 000000800000], size: 000000200000 (2,00 MB) Partition: mmcblk0p5 (GP1) Address in ROM1, [000000800000 - 000000A00000], size: 000000200000 (2,00 MB) Partition: mmcblk0p6 (SOS) Address in ROM1, [000000A00000 - 000001400000], size: 000000A00000 (10,0 MB) Partition: mmcblk0p7 (LNX) Address in ROM1, [000001400000 - 000001E00000], size: 000000A00000 (10,0 MB) Partition: mmcblk0p8 (APP) Address in ROM1, [000001E00000 - 000061E00000], size: 000060000000 (1,50 GB) Partition: mmcblk0p9 (CAC) Address in ROM1, [000061E00000 - 000079E00000], size: 000018000000 (384 MB) Partition: mmcblk0p10 (MSC) Address in ROM1, [000079E00000 - 00007A000000], size: 000000200000 (2,00 MB) Partition: mmcblk0p11 (USP) Address in ROM1, [00007A000000 - 00007F000000], size: 000005000000 (80,0 MB) Partition: mmcblk0p12 (NVA) Address in ROM1, [00007F000000 - 00007F200000], size: 000000200000 (2,00 MB) Partition: mmcblk0p13 (UDA) Address in ROM1, [00007F200000 - 00073AA00000], size: 0006BB800000 (26,9 GB) Partition: mmcblk0p14 (DRM) Address in ROM1, [00073AA00000 - 00073BA00000], size: 000001000000 (16,0 MB) Partition: mmcblk0p15 (MLT) Address in ROM1, [00073BA00000 - 00073CA00000], size: 000001000000 (16,0 MB) Partition: mmcblk0p16 (FOT) Address in ROM1, [00073CA00000 - 00073DE00000], size: 000001400000 (20,0 MB) Partition: mmcblk0p17 (CAL) Address in ROM1, [00073DE00000 - 00073EE00000], size: 000001000000 (16,0 MB) Partition: mmcblk0p18 (UDB) Address in ROM1, [00073EE00000 - 000747A00000], size: 000008C00000 (140 MB) Partition: mmcblk0p19 (GPT) Address in ROM1, [000747A00000 - 000747C00000], size: 000000200000 (2,00 MB) NVidia header successfully parsed BCT fully placed at ROM2/3 |
if you have backup you need 1) configure sizes of ROM2/3 as at backup 2) write: ROM2 to ROM2 ROM3 to ROM3 ROM1 to ROM1 3) try to "check eMMC" with option: "Read partition info" |
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