hey guys, whoever on miui, do you guys get HSDPA?? i see its stay on 3g most of the time... hmmmm
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Help!!!!!!!!!!!!!!!!!!ME!!!!!
PLEASE!!!
I had recently installed the where's my droid application and when i try to test the changing sim card function(where this app will send a sms to a phone number that i set notifying me my phone had changed sim card),
and when i try to change different sim card to test the function and when i restart my phone, my phone loading in the 'S' sign for a long time ( i thought it is the where my droid app problem) , so i try to force turn off my phone instead of let it keep on loading and want to change back to my original sim card but the phone will automatically restart everytime i try to turn off, so i direct pull out it's battery and put back my original sim card and start my phone again, this time my phone successfully logging to the user interface, but
Problems occured: weird thing happen, all my contact loss in the phone and most of my application installed corrupted, also the phone becomes slower and lagger(e.g. when i try to type *126# to check my phone credit balance, my phone delay for a long time, about 30sec to show me the credit balance) and when my phone receive a sms, it will send a same message duplicated many times, when some one send me a sms, it keep on sending the same message in a time interval(e.g. sending the same sms every 30 minute for 3 hour)
What should i do? I just need to flash a new room using ODIN? does a corrupted andoid OS affect the flashing proccess and make my phone brick?
THANKS!!!

I think you can just flash a new rom using ODIN in download mode.. it wont make your phone brick cause of that... infact sgs is very hard to brick...