I can't install a custom recovery I'm trying to install a custom recovery on my phone. My phone model name is LYF LS 5014(LYF Wind 4). But I can't find the model name of my phone in any website to download the custom recovery. What should I do now.....
Ethan Yonkers (Dees Troy) the Developer of TWRP has your answer, build it yourself, as long as the manufacturer follows the GPL license guidelines and releases the kernel source it isn't super difficult... https://plus.google.com/+DeesTroy/posts/iyyM1kYULEa


  Requesting TWRP for unsupported devices
  
  There seems to be a lot of misunderstanding about what devices we
  support and why we choose to support certain devices over others.
  Official support for a device usually comes about in one of two ways:
  1) We somehow get our hands on the device either through someone or a
  company donating the device to us or occasionally we save up enough
  money to purchase a device ourselves. 2) Another developer who
  actually owns the device steps up and ports TWRP to their device, then
  they work with us to get their device added to our official
  distribution.
  
  Occasionally there's a third method where we work with a remote tester
  who owns the device to get the device working in TWRP. This third
  method is not used very often because by and large, remote testers are
  epic failures. Remote testers often need tons of hand holding and
  line-by-line directions. Remote testers often fail to know how to get
  things like adb and fastboot working. Remote testers often fail to
  make themselves available when we need them and they disappear before
  we're able to finish verifying a completely working build. At this
  point, we usually only work with remote testers that we already know
  and have a relationship with so that we can ensure that we're not
  wasting our valuable time working with someone who doens't know what
  they're doing and will disappear before the job is done.
  
  Sure, you can offer files and to be a tester and offer to provide
  everything we need, but most likely you'll be ignored because we
  simply don't have the time.
  
  You can compile TWRP yourself by following this guide:
  http://forum.xda-developers.com/showthread.php?t=1943625 To put it
  short, you will need:
  -A Linux environment, either virtual or native
  -A full Omni build tree, about a 15 or 20GB download
  -A copy of the stock recovery and/or kernel source for your device
  -A basic knowledge of adb, fastboot, Linux command line, make files, and strong ability to figure things out on your own via searching on
  Google
  
  If none of the above works for you, feel free to donate the cash or
  ship us your device and we'll try to work on it when we get a chance.


Remember that to use custom recovery, your bootloader must be unlocked.