Ok so I tried switching roms to metropolis. Messed up and wiped system and lost my back ups. Phone only turns on an goes to samsung galaxy s3 screen. I can pull battery and get to CWM, i can pull my sd card and plug it into my computer to put a rom on the sd but it comes up only in external . I tried downloading the metro stock.rar and changed it to zip. when I try to install it , i get back a error. E:can't open /external_sd/metro-s3-stock.zip (bad) . any ideas? also im on a mac and dont have access to a pc ... Any ideas?

