Acabo de hacer todos los pasos necesarios en mi N7:
- Descargue la imagen de fábrica desde Google
- Descomprimir el archivo descargado (por ejemplo
tar -xvzf nakasi-jdq39-factory-c317339e.tgz )
- Arranca tu N7 en el bootloader (mantén pulsados los botones de encendido y volumen)
- Tener fastboot instalado (viene con el SDK o en el caso de Ubuntu, basta con instalar Android-tools-fastboot )
- conéctalo a tu máquina
- Flashearlo usando flash-all.bat o flash-all.sh (necesita instalar fastboot)
Aquí está la transcripción (usando Ubuntu):
me@localhost:/tmp/nakasi-jdq39$ ls
bootloader-grouper-4.18.img flash-all.sh image-nakasi-jdq39.zip
flash-all.bat flash-base.sh
me@localhost:/tmp/nakasi-jdq39$ bash flash-all.sh
...
(bootloader) Bootloader is already unlocked
OKAY [ 0.020s]
finished. total time: 0.020s
erasing 'boot'...
OKAY [ 0.104s]
finished. total time: 0.104s
******** Did you mean to fastboot format this partition?
erasing 'cache'...
OKAY [ 0.147s]
finished. total time: 0.147s
erasing 'recovery'...
OKAY [ 0.106s]
finished. total time: 0.106s
******** Did you mean to fastboot format this partition?
erasing 'system'...
OKAY [ 0.175s]
finished. total time: 0.175s
******** Did you mean to fastboot format this partition?
erasing 'userdata'...
OKAY [ 1.401s]
finished. total time: 1.401s
sending 'bootloader' (2096 KB)...
OKAY [ 0.286s]
writing 'bootloader'...
OKAY [ 1.165s]
finished. total time: 1.452s
rebooting into bootloader...
OKAY [ 0.020s]
finished. total time: 0.020s
archive does not contain 'boot.sig'
archive does not contain 'recovery.sig'
archive does not contain 'system.sig'
--------------------------------------------
Bootloader Version...: 4.18
Baseband Version.....: N/A
Serial Number........: XXXXXXXXXXXXXXXXXX
--------------------------------------------
checking product...
OKAY [ 0.040s]
checking version-bootloader...
OKAY [ 0.023s]
sending 'boot' (4944 KB)...
OKAY [ 0.654s]
writing 'boot'...
OKAY [ 0.172s]
sending 'recovery' (5446 KB)...
OKAY [ 0.712s]
writing 'recovery'...
OKAY [ 0.193s]
erasing 'system'...
OKAY [ 0.055s]
sending 'system' (471804 KB)...
OKAY [ 60.282s]
writing 'system'...
OKAY [ 23.357s]
erasing 'userdata'...
OKAY [ 1.023s]
formatting 'userdata' partition...
Creating filesystem with parameters:
Size: 14442037248
Block size: 4096
Blocks per group: 32768
Inodes per group: 8176
Inode size: 256
Journal blocks: 32768
Label:
Blocks: 3525888
Block groups: 108
Reserved block group size: 863
Created filesystem with 11/883008 inodes and 96825/3525888 blocks
sending 'userdata' (137526 KB)...
writing 'userdata'...
OKAY [ 27.078s]
erasing 'cache'...
OKAY [ 0.050s]
formatting 'cache' partition...
Creating filesystem with parameters:
Size: 464519168
Block size: 4096
Blocks per group: 32768
Inodes per group: 7088
Inode size: 256
Journal blocks: 1772
Label:
Blocks: 113408
Block groups: 4
Reserved block group size: 31
Created filesystem with 11/28352 inodes and 3654/113408 blocks
sending 'cache' (9052 KB)...
writing 'cache'...
OKAY [ 1.751s]
rebooting...
finished. total time: 115.545s
