Here I have a G300 from a friend who asked me to do a root and install a ROM better .. I was reading a little about the procedure and got so far to root and install CWM recovery, I tried a few different ROMs and they all block the phone, does not pass the manufacturer's logo. I'm a little scared because the phone is not mine, and admired because I've done this multiple times on different phones and similar never happened to me ..
Someone can explain me what may be missing here?
I did the backup stockROM: (