At First I would Like to Tell u That i m not the developer of this awesome Rom Ice Cream Bread - Apocalypse v4.5 Rom for Samsung Galaxy Y So Please Thanks to All Creaters of this awesome Rom given below in the end of this post :-
This custom Rom is only for & be installed on Samsung galaxy y model gt-s5360 and is not meant for any other model. Use it at your own Risk we will not be held responsible for what ever happens to your phone. The information provided here is only for instructional and educational purpose.
Back up your system and charge yours phone battery at least 75%
As you have already downloaded the Rom file "IceCreamBread-Apocalypse_v.4.5.zip" from the link provided above place it in the root directory of yours phone SD card and not inside any folder and turn your phone off.
Now you have to boot your phone in Recovery Mode to boot in Recovery Mode press and hold Volume Up + Home Key + Power button together until you see blue screen.
On entering Recovery Mode your's phone touch screen will become function less you will have to take help of keys to move up and down use volume key for selection home key and for back use power button.
Now first of all Wipe Data And Cache
Then Select "Apply Update From Zip" and navigate to root directory and select the ROM file which is "IceCreamBread-Apocalypse_v.4.5.zip" The patching process will begin let the process to complete it do not interrupt.
After the patching process completed select "Reboot System Now" from menu first boot may take a bit longer then normal boot so keep passions. In case if you stuck at boot logo Wiping Data And Cache will solve it.
For Some Plug-Ins For This Rom See Below...
WARNING! Only Flash This Fix If You Want To Use Link2Sd's Full Mounting Features!