title: Unlocking fastboot of Coolpad Note 3
body: <p>I have a Coolpad Note 3 and I am trying to unlock the fastboot (bootloader). 
  <br>Everything is perfectly setup on my Laptop except for one thing that I cannot install recoveries or flash my device through Sp Flash tool. <br>I have Ubuntu 16.04 LTS on my laptop. Surprisingly I can use adb and connect my phone wired or wirelessly while I develop and test my apps through Android Studio. Although I had no luck with Unity remote for developing and testing through Unity 5.x versions. <br>I mean that I can connect my phone to my laptop and test apps over WiFi/Wire cause I and it works perfect and I can use <code>adb</code> commands through the <code>terminal</code> as well. Only problem is I cannot use <code>fastboot</code>. Actually running <code>fastboot</code> in the <code>terminal</code> produces the regular output it should i.e.</p>
  
  <pre><code>$ fastboot
  
  
  usage: fastboot [ &lt;option&gt; ] &lt;command&gt;
  
  commands:
  
  update &lt;filename&gt;                        reflash device from update.zip
  
  flashall                                 flash boot, system, vendor and if 
  found,
  
                                         recovery
  
  flash &lt;partition&gt; [ &lt;filename&gt; ]         write a file to a flash partition
  
  erase &lt;partition&gt;                        erase a flash partition
  
  format[:[&lt;fs type&gt;][:[&lt;size&gt;]] &lt;partition&gt; format a flash partition.
                                         Can override the fs type and/or
                                         size the bootloader reports.
  
   getvar &lt;variable&gt;                        display a bootloader variable
  
  boot &lt;kernel&gt; [ &lt;ramdisk&gt; [ &lt;second&gt; ] ] download and boot kernel
  
  flash:raw boot &lt;kernel&gt; [ &lt;ramdisk&gt; [ &lt;second&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.
                                         default: 0x10000000
  
  -n &lt;page size&gt;                           specify the nand page size.
                                         default: 2048
  
  
  -S &lt;size&gt;[K|M|G]                         automatically sparse files 
  greater
  
                                         than size.  0 to disable
  </code></pre>
  
  <p>Using <code>fastboot devices</code> in <code>terminal</code> has no output.<br> Same results for <code>sudo fastboot devices</code> and I even tried <code>$(which fastboot) devices</code> and <code>sudo $(which fastboot) devices</code>. No luck on my end.<br><br>
  My Android phone is :<br>
  Coolpad Note 3<br>
  Running Marshmallow Stock ROM<br>
  Rom is unmodified and stock<br>
  Phone is not rooted.<br>
  Also no custom software like a recovery<br><br></p>
  
  <p>Can anybody help me with running fastboot with my Coolpad Note 3.</p>