I have a Nexus 7 (2013), 32GB, WiFi-only, that won't boot. I had been using it daily, until I woke up one morning to a boot loop. It was plugged in all night, but was at about half battery when I woke up (after turning it off). After what feels like a longer than normal boot animation, it goes to the "optimizing apps" window. It completes that and goes to "starting apps", but then restarts.
It is running 6.0.1, unmodified with locked bootloader. USB debugging is on
I am able to boot into recovery and tried clearing the cache.
Is there any way to recover without wiping my data?
fastboot getvar all:
(bootloader) version-bootloader: FLO-04.08
(bootloader) version-baseband: none
(bootloader) version-hardware: rev_e
(bootloader) version-cdma: N/A
(bootloader) variant: flo 32G
(bootloader) serialno: 09ace413
(bootloader) product: flo
(bootloader) secure_boot: enabled
(bootloader) lock_state: locked
(bootloader) project: flo
(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: 0.114s
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 [ 0.627s]
finished. total time: 0.628s
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 [ 0.403s]
sending 'cache' (10984 KB)...
FAILED (remote: Bootloader is locked.)