How to Install Custom ROMS on any Galaxy S3!

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You MUST have ClockworkMod Recovery already on your Galaxy S3! 
Click Here to find out how for Windows.
Click Here to find out how for Mac.
This guide will show you step by step on how to install custom ROMS very easily. 
Note: I recommend you do a Nandroid Backup always before you install a custom ROM.
Click here on how to do a Nandroid Backup. 

 I am assuming that you have already downloaded and transfered a custom ROM to your device!

 Where should I download custom ROMS? Links Below 
International Galaxy S3
T-Mobile
AT&T Galaxy S3
Verizon Galaxy S3 
Sprint Galaxy S3 


1. Enter into ClockworkMod Recovery mode. Power off your phone, press the volume up, home center button, and power button all at the same time. When you feel a vibration let go of the power, but keep holding on to the volume up and home center button. 


2. Select "wipe data/factory reset". 



3. Select "yes". 


 4. Select "wipe cache partition" and "yes".



 5. Select "advanced". 



6. Select "wipe dalvik cache" and "yes".





7. Next, select "+++++Go Back+++++".



 8. Select "install zip from sd card".


9. Select "choose zip from sd card".



 10. Find the rom you transfered earlier and select "yes".



11. Choose "+++++Go Back+++++". 



12. Select "reboot system now". And wait 15 minutes before you touch your phone!! 




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