Well, I wasn't able to flash with Phoenix at all Only flasher. Strange thing is chinese cmt flash worked sometimes , like 100% success. And that only works now. Otherwise if I use any other files for cmt then I get SIM error. Sometimes after flashing chinese cmt, I was able to use phone for 2 days before issue appearing again. I think I had tried cold flash earlier.(not sure) but I can try again. But I really curious to know cause and if someone can fix it, if someone can take it up as challenge