How to Install iOS 7 Custom ROM on Samsung Galaxy Y

To do This you need : 

1- CWM Recovery 
2- IOS7 custom ROM 

Now , What we want to do ?? 

1- put the ZIP files on your SD card
2- reboot your device into recovery ( power button + Vol+ + Home button )
3- Choose zip from sd card > Install ZIP from sd card > and choose the CWM ZIP and install it >>( if you already have CWM on your device don't do this step ) <<
4- Go to mounts and storage
5 - Mount/data
6- Mount/cache
7- Mount/System
8- Go back
9- Select Advanced > Reboot Recovery ( the Device will reboot to recovery again )
10- Mounts And Storage > Format/System .......... Format/data .............. Format/cache
11-Mount/data ........ mount/system ........... mount/cache
12- Go back
13- install zip from sd card > choose zip from sd card > custom rom Zip file ios7..... And install it
14 - Wait
15- Go back
16 - Wipe data / factory reset
17-reboot system now
18- Wait some moments