i am facing problem to unlock the samsung s3 i9300.
Android version 4,3
Baseband version I9300BUUGNF1
Build Number JSS15J.I9300XXUGNH4
firstly i Turn ON the USB Debug
then i connect to the OSS Client.but software was continues showing that
"Please first open the USB Debugging"
then i read little bit on the forum and i found two code
*#0808# and *#9090#
please check the image
after that when i connect the phone to the PC then i got error from PC.
the connecting device have malfunction.i try different port and i also change the cable and also restart the PC.in the device manager PC detect as unknown device.i also try to uninstall and install again and even that i also install the samsung android Driver and google android Driver and finally samsung Driver but no success.
then i found on the internet that i must Enable the CP logging in the system recovery.but when i check on the system receovery i did not found the CP logging.i think because of old software version of android.
i am using windows 7 64 bit.
now please guide me that how i can solve this problem..do i need to update the kernal, if yes then which kernal should i use and after that how i can go back to the orginal kernal.
if you have different option then please share the experience