I am trying to install a rom on my phone but it's not really working out the way I hoped. I got blockworkmod running on my S3 and I tried to install the carbonROM file for my device. This returned the following message after about 20 seconds of installing:
set_metadata_recursive: some changed failed
E: Error in /external_sd/CARBON-KK-NIGHTLY-20141106-1232-i9305.zip
When I tried to install cyanogenmod to the device it didn't do anything, it just imediately returned to the homescreen on clockworkmod.
What can be the problem here and what should I do to be able to use the phone again with any good ROM?
NOTE: I am very new to this stuff, with installing ROMs and rooting my phone.