Here is all I'm going to give you as I want you to learn about your phone.
Find out what model you have. Go to the development forum and choose a rom. Download it to your PC. Boot your phone into recovery. Mount sdcard and then turn on USB mount. Transfer the zip to your phone. Toggle USB off. Then wipe data factory reset. Wipe cache and dalvic cache. Then flash zip of the rom you chose. After the flash is complete chose reboot system and your phone should boot.
Now you need to read up on these forums and learn how to do what I just said. That way hopefully you wont screw up your phone again, or when you do you will know how to fix it.
make sure you download a rom that is for your specific model.
Don't post your question in multiple forums. You already screwed up by posting this exact question in general. Next time post here with your question.
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