Fastboot poweroff command Is there a way to shutdown my Mate7 from fastboot? Long pressing the power button makes the phone restart again. I need to shut it down so I can recharge it then restore to stock.
There is no Fastboot Command that does this. 

However you could try holding the power button down until the screen goes blank and then letting go off the power button before the device starts to boot (before the vibrate). This is the only viable way... The list of available Fastboot commands are:

usage: fastboot [ &lt;option&gt; ] &lt;command&gt;

 

commands:

  update &lt;filename&gt;                        reflash device from update.zip

  flashall                                 flash boot + recovery + system

  flash &lt;partition&gt; [ &lt;filename&gt; ]         write a file to a flash partition

  erase &lt;partition&gt;                        erase a flash partition

  format &lt;partition&gt;                       format a flash partition

  getvar &lt;variable&gt;                        display a bootloader variable

  boot &lt;kernel&gt; [ &lt;ramdisk&gt; ]              download and boot kernel

  flash:raw boot &lt;kernel&gt; [ &lt;ramdisk&gt; ]    create bootimage and flash it

  devices                                  list all connected devices

  continue                                 continue with autoboot

  reboot                                   reboot device normally

  reboot-bootloader                        reboot device into bootloader

  help                                     show this help message

 

options:

  -w                                       erase userdata and cache (and format

                                           if supported by partition type)

  -u                                       do not first erase partition before

                                           formatting

  -s &lt;specific device&gt;                     specify device serial number

                                           or path to device port

  -l                                       with "devices", lists device paths

  -p &lt;product&gt;                             specify product name

  -c &lt;cmdline&gt;                             override kernel commandline

  -i &lt;vendor id&gt;                           specify a custom USB vendor id

  -b &lt;base_addr&gt;                           specify a custom kernel base address

  -n &lt;page size&gt;                           specify the nand page size. default:

2048

  -S &lt;size&gt;[K|M|G]                         automatically sparse files greater th

an