Help Rooting D805 4.4.2

Im all out of options, I have no idea what else to do. Here is what I've tried:

1. Used the ioroot but it shows device not found right after it reboots into recovery mode but no error shows up .

2.Tried an older version of ioroot but this came up:

Mounting system RW and pushing SU, then remounting system RO again
mount: Operation not permitted
failed to copy 'su' to '/system/xbin/su': Read-only file system
Unable to open /system/xbin/su: No such file or directory
Unable to open /system/xbin/su: No such file or directory
mount: Operation not permitted

3. Tried TowelRoot but shows that my device is not supported.

I have no idea what else should I do now :/ Any help is appreciated.

PS: I cant use the newer version of ioroot now, it just shut down by itself when I press any key to start it.