Unable to install TWRP Chinese Xiaomi Redmi Note 4g Dual SIM

I almost tried everything to root and install TWRP on my Xiaomi Redmi Note 4g Dual SIM... Without success... My goal is to remove current chinese remove and install either the global version or a Cyanogen rom. But first I want to install TWRP.

What I've done:

1. Download TWRP recovery image twrp-3.0.2-0-dior.img

2. Using adb (I first renamed img file to recovery.img):

Code:

---

 
adb reboot bootloader
sudo fastboot flash recovery recovery.img
  target reported max download size of 268435456 bytes
  sending 'recovery' (13284 KB)...
  OKAY [  0.418s]
  writing 'recovery'...
  OKAY [  0.592s]
  finished. total time: 1.010s
sudo fastboot boot recovery.img
  downloading 'boot.img'...
  OKAY [  0.418s]
  booting...
  FAILED (remote: dtb not found)
  finished. total time: 0.517s

---

I don't know how to get rid of this FAILED message... Currently I'm trying to install manually "su", and busybox binaries but I'm unable to mount /system partition as RW.

Any advice/suggestion is welcome.

Thank you

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