Hello everyone, I have an LG optimus s phone with a problem. i started to learn about roms and thought they were interesting so i wanted to download one of my own. i downloaded one for LG ally and when i installed it on the phone it went successfully. But when i went to launch it it just shows lg and turns off and goes back to the lg screen again and keeps doing that until you take out the battery. so then i tried to install the preious rom it said that there was no such file or directory. i really need help and i don't want to buy a new phone. so please help me.