I have a sprint s3 and I just rooted my phone and it was done correct. my question is do I need to download the roms to my computer first then copy to my phone.I have been trying from my phone. it downloads but can't open. help please. thanks
Installing a custom ROM implies a number of steps:
- Root your phone.
- Flash a custom recovery (4ext or CWM).
- Store on you sd card a downloaded custom ROM.
- Reboot your phone into recovery, select the desired ROM and flash it.
- Reboot and have fun.
Note: Please BACKUP your data before doing anything! Better safe than sorry.