[Nexus 7 (2013) Q&A] jmarshallh:
so... hi !

new to xda forums, i followed this 2016 thread with interest

my nexus 7 is always rebooting on google logo and after seems to work with green android robot and again google logo

so i can do a lot of things, like flash last twrp recovery, and return all the files with fastboot to stock ! but ! again bootloop

and i can't enter recovery menu : twrp is starting and a log with red lines is showing up :

"failed to write /dev/block/mmcblk0p24: I/O error"

so here the logs with the four command asked :

'fastboot oem device-info

fastboot getvar all

fastboot oem gpt-info

fastboot format cache "

*fastboot oem device-info

...

(bootloader) Device tampered: false

(bootloader) Device unlocked: false

(bootloader) SB=Y

OKAY [ 0.004s]

finished. total time: 0.004s

*fastboot getvar all

(bootloader) version-bootloader: FLO-04.02

(bootloader) version-baseband: DEB-Z00_2.42.0_1204

(bootloader) version-hardware: rev_e

(bootloader) version-cdma: N/A

(bootloader) variant: deb 32G

(bootloader) serialno: 0a19ef31

(bootloader) product: deb

(bootloader) secure_boot: enabled

(bootloader) lock_state: unlocked

(bootloader) project: deb

(bootloader) off-mode-charge: yes

(bootloader) uart-on: no

(bootloader) partition-type:bootloader: emmc

(bootloader) partition-size:bootloader: 0x0000000000aee000

(bootloader) partition-type:recovery: emmc

(bootloader) partition-size:recovery: 0x0000000000a00000

(bootloader) partition-type:boot: emmc

(bootloader) partition-size:boot: 0x0000000001000000

(bootloader) partition-type:system: ext4

(bootloader) partition-size:system: 0x0000000034800000

(bootloader) partition-type:cache: ext4

(bootloader) partition-size:cache: 0x0000000023000000

(bootloader) partition-type:userdata: ext4

(bootloader) partition-size:userdata: 0x00000006b7ffbe00

all:

finished. total time: 0.025s

*fastboot oem gpt-info

...

(bootloader) partition[1].name = radio

(bootloader) partition[1].first_lba = 131072

(bootloader) partition[1].last_lba = 306143

(bootloader) partition[1].size 87536 KB

(bootloader) partition[2].name = modemst1

(bootloader) partition[2].first_lba = 393216

(bootloader) partition[2].last_lba = 399359

(bootloader) partition[2].size 3072 KB

(bootloader) partition[3].name = modemst2

(bootloader) partition[3].first_lba = 399360

(bootloader) partition[3].last_lba = 405503

(bootloader) partition[3].size 3072 KB

(bootloader) partition[4].name = persist

(bootloader) partition[4].first_lba = 524288

(bootloader) partition[4].last_lba = 554287

(bootloader) partition[4].size 15000 KB

(bootloader) partition[5].name = m9kefs1

(bootloader) partition[5].first_lba = 655360

(bootloader) partition[5].last_lba = 656919

(bootloader) partition[5].size 780 KB

(bootloader) partition[6].name = m9kefs2

(bootloader) partition[6].first_lba = 656920

(bootloader) partition[6].last_lba = 658479

(bootloader) partition[6].size 780 KB

(bootloader) partition[7].name = m9kefs3

(bootloader) partition[7].first_lba = 786432

(bootloader) partition[7].last_lba = 787991

(bootloader) partition[7].size 780 KB

(bootloader) partition[8].name = fsg

(bootloader) partition[8].first_lba = 787992

(bootloader) partition[8].last_lba = 794135

(bootloader) partition[8].size 3072 KB

(bootloader) partition[9].name = sbl1

(bootloader) partition[9].first_lba = 917504

(bootloader) partition[9].last_lba = 920503

(bootloader) partition[9].size 1500 KB

(bootloader) partition[10].name = sbl2

(bootloader) partition[10].first_lba = 920504

(bootloader) partition[10].last_lba = 923503

(bootloader) partition[10].size 1500 KB

(bootloader) partition[11].name = sbl3

(bootloader) partition[11].first_lba = 923504

(bootloader) partition[11].last_lba = 927599

(bootloader) partition[11].size 2048 KB

(bootloader) partition[12].name = aboot

(bootloader) partition[12].first_lba = 927600

(bootloader) partition[12].last_lba = 937839

(bootloader) partition[12].size 5120 KB

(bootloader) partition[13].name = rpm

(bootloader) partition[13].first_lba = 937840

(bootloader) partition[13].last_lba = 938863

(bootloader) partition[13].size 512 KB

(bootloader) partition[14].name = boot

(bootloader) partition[14].first_lba = 1048576

(bootloader) partition[14].last_lba = 1081343

(bootloader) partition[14].size 16384 KB

(bootloader) partition[15].name = tz

(bootloader) partition[15].first_lba = 1179648

(bootloader) partition[15].last_lba = 1180671

(bootloader) partition[15].size 512 KB

(bootloader) partition[16].name = pad

(bootloader) partition[16].first_lba = 1180672

(bootloader) partition[16].last_lba = 1180673

(bootloader) partition[16].size 1 KB

(bootloader) partition[17].name = sbl2b

(bootloader) partition[17].first_lba = 1180674

(bootloader) partition[17].last_lba = 1183673

(bootloader) partition[17].size 1500 KB

(bootloader) partition[18].name = sbl3b

(bootloader) partition[18].first_lba = 1183674

(bootloader) partition[18].last_lba = 1187769

(bootloader) partition[18].size 2048 KB

(bootloader) partition[19].name = abootb

(bootloader) partition[19].first_lba = 1187770

(bootloader) partition[19].last_lba = 1198009

(bootloader) partition[19].size 5120 KB

(bootloader) partition[20].name = rpmb

(bootloader) partition[20].first_lba = 1198010

(bootloader) partition[20].last_lba = 1199033

(bootloader) partition[20].size 512 KB

(bootloader) partition[21].name = tzb

(bootloader) partition[21].first_lba = 1199034

(bootloader) partition[21].last_lba = 1200057

(bootloader) partition[21].size 512 KB

(bootloader) partition[22].name = system

(bootloader) partition[22].first_lba = 1310720

(bootloader) partition[22].last_lba = 3031039

(bootloader) partition[22].size 860160 KB

(bootloader) partition[23].name = cache

(bootloader) partition[23].first_lba = 3031040

(bootloader) partition[23].last_lba = 4177919

(bootloader) partition[23].size 573440 KB

(bootloader) partition[24].name = misc

(bootloader) partition[24].first_lba = 4194304

(bootloader) partition[24].last_lba = 4196351

(bootloader) partition[24].size 1024 KB

(bootloader) partition[25].name = recovery

(bootloader) partition[25].first_lba = 4325376

(bootloader) partition[25].last_lba = 4345855

(bootloader) partition[25].size 10240 KB

(bootloader) partition[26].name = DDR

(bootloader) partition[26].first_lba = 4456448

(bootloader) partition[26].last_lba = 4456463

(bootloader) partition[26].size 8 KB

(bootloader) partition[27].name = ssd

(bootloader) partition[27].first_lba = 4456464

(bootloader) partition[27].last_lba = 4456479

(bootloader) partition[27].size 8 KB

(bootloader) partition[28].name = m9kefsc

(bootloader) partition[28].first_lba = 4456480

(bootloader) partition[28].last_lba = 4456481

(bootloader) partition[28].size 1 KB

(bootloader) partition[29].name = metadata

(bootloader) partition[29].first_lba = 4587520

(bootloader) partition[29].last_lba = 4587583

(bootloader) partition[29].size 32 KB

(bootloader) partition[30].name = userdata

(bootloader) partition[30].first_lba = 4718592

(bootloader) partition[30].last_lba = 61079518

(bootloader) partition[30].size 28180463 KB

(bootloader) partition[31].name =

(bootloader) partition[31].first_lba = 0

(bootloader) partition[31].last_lba = 0

(bootloader) partition[31].size 0 KB

(bootloader) partition[32].name =

(bootloader) partition[32].first_lba = 0

(bootloader) partition[32].last_lba = 0

(bootloader) partition[32].size 0 KB

(bootloader) partition[33].name =

(bootloader) partition[33].first_lba = 0

(bootloader) partition[33].last_lba = 0

(bootloader) partition[33].size 0 KB

(bootloader) partition[34].name =

(bootloader) partition[34].first_lba = 0

(bootloader) partition[34].last_lba = 0

(bootloader) partition[34].size 0 KB

(bootloader) partition[35].name =

(bootloader) partition[35].first_lba = 0

(bootloader) partition[35].last_lba = 0

(bootloader) partition[35].size 0 KB

(bootloader) partition[36].name =

(bootloader) partition[36].first_lba = 0

(bootloader) partition[36].last_lba = 0

(bootloader) partition[36].size 0 KB

(bootloader) partition[37].name =

(bootloader) partition[37].first_lba = 0

(bootloader) partition[37].last_lba = 0

(bootloader) partition[37].size 0 KB

OKAY [ 0.149s]

finished. total time: 0.149s

* fastboot format cache

Creating filesystem with parameters:

Size: 587202560

Block size: 4096

Blocks per group: 32768

Inodes per group: 7168

Inode size: 256

Journal blocks: 2240

Label:

Blocks: 143360

Block groups: 5

Reserved block group size: 39

Created filesystem with 11/35840 inodes and 4616/143360 blocks

erasing 'cache'...

OKAY [ 0.433s]

sending 'cache' (10984 KB)...

OKAY [ 0.432s]

writing 'cache'...

OKAY [ 0.502s]

finished. total time: 1.367s

so i look for line "partition 30 " :

partition[30].name = userdata

(bootloader) partition[30].first_lba = 4718592

(bootloader) partition[30].last_lba = 61079518

(bootloader) partition[30].size 28180463 KB

it seems ok with Hynix emmc

so please, have you got ideas with my problem

thank you so much and sorry for my poor english