Cannot flash a working custom recovery on a rooted LG G2 D802(T)

I own an LG G2 D802**T**. I have rooted it successfully with **IORoot**, but when I try to flash a custom recovery on it, it always fails. I have also tried **AutoRec** for **D802T**. Although it flashes and I am able to enter into TWRP, the phone got stuck at LG Logo and the only option left is to flash a kdz through LG Flash Tool again. I have searched for it on several forums but was unable to find the answer. Also, I have tried several apps from Play Store as well. How can I flash **TWRP** or **CWM** which work 100%?