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我试图用 ANDROID PREVIEW SYSTEM IMAGE 刷入 Nexus 7[2012][Wifi]
http://developer.android.com/preview/index.html#Start
我一步一步地按照说明操作，但是当我执行“flash-all.sh”时它不起作用，我在命令提示符中收到以下消息:
sending 'bootloader' (3911 KB)...
OKAY [ 0.487s]
writing 'bootloader'...
FAILED (remote: (InvalidState))
finished. total time: 0.715s
rebooting into bootloader...
OKAY [ 0.025s]
finished. total time: 0.075s
archive does not contain 'boot.sig'
archive does not contain 'recovery.sig'
archive does not contain 'system.sig'
archive does not contain 'vendor.img'
Creating filesystem with parameters:
Size: 14569963520
Block size: 4096
Blocks per group: 32768
Inodes per group: 8160
Inode size: 256
Journal blocks: 32768
Label:
Blocks: 3557120
Block groups: 109
Reserved block group size: 871
Created filesystem with 11/889440 inodes and 97309/3557120 blocks
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
--------------------------------------------
Bootloader Version...: 4.23
Baseband Version.....: N/A
Serial Number........: 015d49060618000a
--------------------------------------------
checking product...
FAILED
Device product is 'grouper'.
Update requires 'flo'.
finished. total time: 0.168s