well i'm from malaysia, so i need APAC for my K750i firmware, i would like to flash to R1CA021 firmware but there is just APAC with FS but not MAIN. so i did download the CHINA MAIN and flash with the APAC but the result when i turn it on is ask me to insert a correct sim card. so i try to reflash both with CHINA MAIN and FS. but same result. can i know is there any APAC MAIN for R1CA021?