Device:
c6903 (Android 4.4.4)
14.4.A.0.108 (Deutchland O2)
Central Europe 5
Customization version:
1276-4384-R1D

-ulocked bootloader, rooted with newroot (by munjeni)
-TA backup and restored


I tried official twrp app, it said it couldnt install twrp (tried all available versions).
I tried flashify and it said: recovery partition couldnt be found, tried downloading twrp from it, it couldnt finish it.

I downloaded official twrp 3.0.2 in img file.

I tried from terminal:
su

dd if=/sdcard/twrp.img of=/dev/block/platform/msm_sdcc.1/by-name/FOTAKernel

/dev/block/platform/msm_sdcc.1/by-name/FOTAKernel: cannot open for write: No such file or directory


How i can install twrp?