Bro you f-ed up real bad. Did you use QPST to take the backup of EFS partition? If so then specify which version or try another one (old or new) whichever works for you. Rip in peace tho.
@jbsjoshua007 , Can you check download link?
And join this Telegram group for more stable stuff.
Sure! But before flash, i need a special boot.img?
Probably not, but that depends upon your device.
Get Magisk from topjohnwu's GitHub and flash the .zip in twrp.
1. Yes your device is probably unlocked if you have flashed twrp sucessfully.
2. No i don't think you can flash kenzo stuff on your kate.
3. Bricking probably will happen when flashing stuff that is not built for your device, i don't know i...