[Acer Iconia Tab A100] zirrus:
So, my A100 just did this lost partitions brick thing and I've tried looking through a few threads but rummaging through ~40 pages of replies is a bit tedious... I apologize for my laziness.

I can access TWRP and have partitions 5 and 7. I was running Kebbersrom. Is there anyway to recover these without sending to Acer?

Here's any pertinent info:

/proc # cat /proc/partitions

cat /proc/partitions

major minor #blocks name

179 0 7815168 mmcblk0

/dev/block # ls mmc*

ls mmc*

mmcblk0p5 mmcblk0p7

/proc # dmesg | grep mmc

dmesg | grep mmc

<5>[ 0.000000] Kernel command line: tegraid=20.1.4.0.0 mem=1024M@0M vmalloc=256M video=tegrafb tegra_fbmem=4919296@0x3db3d000 console=none usbcore.old_scheme

_first=1 lp0_vec=8192@0x3db25000 brand=acer tegraboot=sdmmc gpt

<4>[ 2.816173] mmc0: Invalid maximum block size, assuming 512 bytes

<7>[ 2.816625] Registered led device: mmc0::

<6>[ 2.817013] mmc0: SDHCI controller on platform [sdhci-tegra.3] using ADMA

<3>[ 2.817399] sdhci sdhci-tegra.2: vddio_sdmmc1 regulator not found: -19

<4>[ 2.817686] mmc1: Invalid maximum block size, assuming 512 bytes

<6>[ 2.817793] mmc1: no vmmc regulator found

<7>[ 2.818082] Registered led device: mmc1::

<6>[ 2.818381] mmc1: SDHCI controller on platform [sdhci-tegra.2] using ADMA

<3>[ 2.818615] sdhci sdhci-tegra.0: vddio_sdmmc1 regulator not found: -19

<4>[ 2.818900] mmc2: Invalid maximum block size, assuming 512 bytes

<6>[ 2.819006] mmc2: no vmmc regulator found

<7>[ 2.819298] Registered led device: mmc2::

<6>[ 2.819566] mmc2: SDHCI controller on platform [sdhci-tegra.0] using ADMA

<6>[ 2.921342] mmc0: new high speed MMC card at address 0001

<6>[ 2.921988] mmcblk0: mmc0:0001 M8G2FA 7.45 GiB

<4>[ 240.961979] [<c01f233c>] (add_disk+0xe8/0x238) from [<c03465c8>] (mmc_blk_probe+0x298/0x2e0)

<4>[ 240.961999] [<c03465c8>] (mmc_blk_probe+0x298/0x2e0) from [<c033e010>] (mmc_bus_probe+0x18/0x1c)

<4>[ 240.962021] [<c033e010>] (mmc_bus_probe+0x18/0x1c) from [<c02635a8>] (driver_probe_device+0xc8/0x184)

<4>[ 240.962102] [<c0261510>] (device_add+0x3c8/0x540) from [<c033e220>] (mmc_add_card+0x11c/0x164)

<4>[ 240.962118] [<c033e220>] (mmc_add_card+0x11c/0x164) from [<c033f60c>] (mmc_attach_mmc+0x114/0x190)

<4>[ 240.962133] [<c033f60c>] (mmc_attach_mmc+0x114/0x190) from [<c033d4c8>] (mmc_rescan+0x23c/0x2c0)

<4>[ 240.962153] [<c033d4c8>] (mmc_rescan+0x23c/0x2c0) from [<c008c8a0>] (process_one_work+0x254/0x3b0)

<4>[ 360.961722] [<c01f233c>] (add_disk+0xe8/0x238) from [<c03465c8>] (mmc_blk_probe+0x298/0x2e0)

<4>[ 360.961741] [<c03465c8>] (mmc_blk_probe+0x298/0x2e0) from [<c033e010>] (mmc_bus_probe+0x18/0x1c)

<4>[ 360.961764] [<c033e010>] (mmc_bus_probe+0x18/0x1c) from [<c02635a8>] (driver_probe_device+0xc8/0x184)

<4>[ 360.961844] [<c0261510>] (device_add+0x3c8/0x540) from [<c033e220>] (mmc_add_card+0x11c/0x164)

<4>[ 360.961860] [<c033e220>] (mmc_add_card+0x11c/0x164) from [<c033f60c>] (mmc_attach_mmc+0x114/0x190)

<4>[ 360.961876] [<c033f60c>] (mmc_attach_mmc+0x114/0x190) from [<c033d4c8>] (mmc_rescan+0x23c/0x2c0)

<4>[ 360.961895] [<c033d4c8>] (mmc_rescan+0x23c/0x2c0) from [<c008c8a0>] (process_one_work+0x254/0x3b0)

<4>[ 480.961821] [<c01f233c>] (add_disk+0xe8/0x238) from [<c03465c8>] (mmc_blk_probe+0x298/0x2e0)

<4>[ 480.961840] [<c03465c8>] (mmc_blk_probe+0x298/0x2e0) from [<c033e010>] (mmc_bus_probe+0x18/0x1c)

<4>[ 480.961862] [<c033e010>] (mmc_bus_probe+0x18/0x1c) from [<c02635a8>] (driver_probe_device+0xc8/0x184)

<4>[ 480.961942] [<c0261510>] (device_add+0x3c8/0x540) from [<c033e220>] (mmc_add_card+0x11c/0x164)

<4>[ 480.961958] [<c033e220>] (mmc_add_card+0x11c/0x164) from [<c033f60c>] (mmc_attach_mmc+0x114/0x190)

<4>[ 480.961973] [<c033f60c>] (mmc_attach_mmc+0x114/0x190) from [<c033d4c8>] (mmc_rescan+0x23c/0x2c0)

<4>[ 480.961992] [<c033d4c8>] (mmc_rescan+0x23c/0x2c0) from [<c008c8a0>] (process_one_work+0x254/0x3b0)

<4>[ 600.961627] [<c01f233c>] (add_disk+0xe8/0x238) from [<c03465c8>] (mmc_blk_probe+0x298/0x2e0)

<4>[ 600.961647] [<c03465c8>] (mmc_blk_probe+0x298/0x2e0) from [<c033e010>] (mmc_bus_probe+0x18/0x1c)

<4>[ 600.961669] [<c033e010>] (mmc_bus_probe+0x18/0x1c) from [<c02635a8>] (driver_probe_device+0xc8/0x184)

<4>[ 600.961749] [<c0261510>] (device_add+0x3c8/0x540) from [<c033e220>] (mmc_add_card+0x11c/0x164)

<4>[ 600.961766] [<c033e220>] (mmc_add_card+0x11c/0x164) from [<c033f60c>] (mmc_attach_mmc+0x114/0x190)

<4>[ 600.961781] [<c033f60c>] (mmc_attach_mmc+0x114/0x190) from [<c033d4c8>] (mmc_rescan+0x23c/0x2c0)

<4>[ 600.961800] [<c033d4c8>] (mmc_rescan+0x23c/0x2c0) from [<c008c8a0>] (process_one_work+0x254/0x3b0)

<4>[ 720.961882] [<c01f233c>] (add_disk+0xe8/0x238) from [<c03465c8>] (mmc_blk_probe+0x298/0x2e0)

<4>[ 720.961901] [<c03465c8>] (mmc_blk_probe+0x298/0x2e0) from [<c033e010>] (mmc_bus_probe+0x18/0x1c)

<4>[ 720.961923] [<c033e010>] (mmc_bus_probe+0x18/0x1c) from [<c02635a8>] (driver_probe_device+0xc8/0x184)

<4>[ 720.962004] [<c0261510>] (device_add+0x3c8/0x540) from [<c033e220>] (mmc_add_card+0x11c/0x164)

<4>[ 720.962020] [<c033e220>] (mmc_add_card+0x11c/0x164) from [<c033f60c>] (mmc_attach_mmc+0x114/0x190)

<4>[ 720.962035] [<c033f60c>] (mmc_attach_mmc+0x114/0x190) from [<c033d4c8>] (mmc_rescan+0x23c/0x2c0)

<4>[ 720.962054] [<c033d4c8>] (mmc_rescan+0x23c/0x2c0) from [<c008c8a0>] (process_one_work+0x254/0x3b0)

Thanks for any help guys.