I recently brought a tmobile unlocked, Samsung galaxy s3, T999. I tried to upgrade firmware with samsung keis, but it stucked at 0. Then I tried, Emergency Firmware Recovery, it also got stuck. I rooted it and applied a custom rom, CyanogenWIZ(Found on xda top review rom) Then i wasnt able to turn on wifi, SIM not detected, etc. Then I wiped all data, reset the phone. It didnt goto the home screen, stuck at loading(with that google 4 colord dots). I could ONLY access, Recovery Mode and Download mode properly. THEN Finally was able to reinstall the stock rom, Galaxy S3 Stock Firmware | Galaxy S3 Root T-Mobile Galaxy S3 Stock Firmware MD5 T999UVALEM_T999TMBALEM_T999UVALEM_HOME.tar After that, It loaded all those "Android 4G tMobile logo, Samsung Galaxy S3, that green animation" But it didnt go further than SAMSUNG logo with blue animation thing. I installed the, [Stock][ROM]Galaxy S3-LTE (d2ltetmo) - xda-developers *****ODIN Firmware***** First, Recovery, then Stock Kernel. Now, IT says, "Firmware upgrade encountered as issue. Please select recovery mode in Kies & try again." When I press the turn ON button. Cant access recovery mode. But download mode can be accessed. PLEASE HELP ME< I REALLY NEED YOUR HELP.