我尝试在新的 Galaxy Nexus toro 上安装 Ubuntu Touch（我今天专门为 Ubuntu Touch 购买的）。我按照我在以下网址找到的说明进行操作https://wiki.ubuntu.com/Touch/Install（安装了所有软件包，备份了安卓系统，解锁了手机），直到我意外地执行了
phablet-flash cdimage-touch -d grouper -b
代替
phablet-flash cdimage-touch -b
它给了我这个输出：
igor@igor-Inspiron-N5110:~$ phablet-flash cdimage-touch -d grouper -b
INFO:phablet-flash:Device detected as grouper
INFO:phablet-flash:Download directory set to /home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1
INFO:phablet-flash:Download directory set to /home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1
INFO:urllib3.connectionpool:Starting new HTTP connection (1): cdimage.ubuntu.com
INFO:phablet-flash:Downloading http://cdimage.ubuntu.com/ubuntu-touch/daily-preinstalled/20130905.1/saucy-preinstalled-recovery-armel+grouper.img to /home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-recovery-armel+grouper.img
--2013-09-06 21:42:14-- http://cdimage.ubuntu.com/ubuntu-touch/daily-preinstalled/20130905.1/saucy-preinstalled-recovery-armel+grouper.img
Resolving cdimage.ubuntu.com (cdimage.ubuntu.com)... 91.189.92.174, 2001:67c:1360:8c01::20, 2001:67c:1360:8c01::21, ...
Connecting to cdimage.ubuntu.com (cdimage.ubuntu.com)|91.189.92.174|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 7344128 (7,0M) [application/octet-stream]
Saving to: ‘/home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-recovery-armel+grouper.img’
100%[======================================>] 7 344 128 1,73MB/s in 4,6s
2013-09-06 21:42:18 (1,53 MB/s) - ‘/home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-recovery-armel+grouper.img’ saved [7344128/7344128]
INFO:phablet-flash:Downloading http://cdimage.ubuntu.com/ubuntu-touch/daily-preinstalled/20130905.1/saucy-preinstalled-system-armel+grouper.img to /home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-system-armel+grouper.img
--2013-09-06 21:42:18-- http://cdimage.ubuntu.com/ubuntu-touch/daily-preinstalled/20130905.1/saucy-preinstalled-system-armel+grouper.img
Resolving cdimage.ubuntu.com (cdimage.ubuntu.com)... 91.189.92.174, 2001:67c:1360:8c01::1f, 2001:67c:1360:8c01::20, ...
Connecting to cdimage.ubuntu.com (cdimage.ubuntu.com)|91.189.92.174|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 68095300 (65M) [application/octet-stream]
Saving to: ‘/home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-system-armel+grouper.img’
100%[======================================>] 68 095 300 2,07MB/s in 32s
2013-09-06 21:42:51 (2,02 MB/s) - ‘/home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-system-armel+grouper.img’ saved [68095300/68095300]
INFO:phablet-flash:Downloading http://cdimage.ubuntu.com/ubuntu-touch/daily-preinstalled/20130905.1/saucy-preinstalled-boot-armhf+grouper.img to /home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-boot-armhf+grouper.img
--2013-09-06 21:42:51-- http://cdimage.ubuntu.com/ubuntu-touch/daily-preinstalled/20130905.1/saucy-preinstalled-boot-armhf+grouper.img
Resolving cdimage.ubuntu.com (cdimage.ubuntu.com)... 91.189.92.174, 2001:67c:1360:8c01::21, 2001:67c:1360:8c01::1f, ...
Connecting to cdimage.ubuntu.com (cdimage.ubuntu.com)|91.189.92.174|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 7501824 (7,2M) [application/octet-stream]
Saving to: ‘/home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-boot-armhf+grouper.img’
100%[======================================>] 7 501 824 1,74MB/s in 4,5s
2013-09-06 21:42:56 (1,58 MB/s) - ‘/home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-boot-armhf+grouper.img’ saved [7501824/7501824]
INFO:phablet-flash:Restarting device... wait
INFO:phablet-flash:Restarting device... wait complete
WARNING:phablet-flash:Device needs to be unlocked for the following to work
INFO:phablet-flash:Flashing system to /home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-system-armel+grouper.img
< waiting for device >
erasing 'system'...
OKAY [ 0.044s]
sending 'system' (66499 KB)...
OKAY [ 7.697s]
writing 'system'...
OKAY [ 5.756s]
finished. total time: 13.496s
INFO:phablet-flash:Flashing boot to /home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-boot-armhf+grouper.img
sending 'boot' (7326 KB)...
OKAY [ 0.859s]
writing 'boot'...
OKAY [ 0.443s]
finished. total time: 1.302s
INFO:phablet-flash:Flashing recovery to /home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-recovery-armel+grouper.img
sending 'recovery' (7172 KB)...
OKAY [ 0.836s]
writing 'recovery'...
OKAY [ 0.458s]
finished. total time: 1.295s
INFO:phablet-flash:Booting /home/igor/Downloads/phablet-flash/ubuntu-touch/20130905.1/saucy-preinstalled-recovery-armel+grouper.img
downloading 'boot.img'...
OKAY [ 0.828s]
booting...
OKAY [ 0.399s]
finished. total time: 1.227s
INFO:phablet-flash:Clearing /data and /cache
error: device not found
ERROR:phablet-flash:Command 'adb shell mount /data' returned
non-zero exit status 255
之后，它重启了手机，它只向我显示了一个黑屏，上面有一张锁的图片，中间有“Google”字样。手机对按任何按钮（包括电源按钮）均无反应。adb没有看到设备：
~ $ adb devices
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached
~ $
，这阻止了我恢复android，因为它在https://wiki.ubuntu.com/Touch/Install。我尝试按住电源按钮重新启动它，但没有帮助。然后我拔掉电池重新启动。之后，我尝试在恢复模式下启动，但它只显示了上述黑屏。adb仍然看不到设备。
我现在该怎么办？我还可以在哪里寻求帮助？
答案1
恢复出厂/Android 设置。
https://wiki.ubuntu.com/Touch/Install
寻找：“恢复 Android”
您需要将手机置于“恢复模式”才能使其正常工作。
更新（更多细节）
笔记：我只需要尝试一下Nexus 7（平板电脑），因为我有几个（二手）并几乎砖砌的其中三个。我还没有尝试过Nexus 4（没有） 或者Nexus 10 （更贵）。
您通常可以（虽然有点困难）让设备进入“恢复屏幕”。
关机（完全关闭）至少十秒钟。
按住“电源”+“音量调高”（因设备/Android 版本而异）仅 2-4 秒。
（这可能需要多次尝试。）
- 然后你应该能够重新刷新到 Google/Android 工厂。