I installed fde via twrp recovery but it didn't autostart after reboot then I used terminal emulator and all things you said,it worked and here is fde.txt, my device is sony Xperia z c6603 existenz rom kitkat 4.4.4 unlocked bootloader with hodor kernel and multirom twrp 2.8.7 and thank u.
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Sent from my C6603 using Tapatalk