The First And Foremost Thing You Need To Do Is Install A Custom Recovery TWRP

THIS PAGE IS FOR THE SAMSUNG GALAXY SKYROCKET SG2 LTE: MODEL# "SGH-I727" FOR ATT & "SGH-I727R" FOR ROGERS.THIS IS NOT THE SAME PHONE AS THE FIRST GENERATION SG2 I9100, FLASHING ROMS/KERNELS/RECOVERIES FROM HERE WILL HARD BRICK THE I9100.The Skyrocket Has Four Main Partitions > Recovery - Radio - Kernel - System.Only Have The Kernel And The System , Which I/We Refer To As "The Rom".Include The Recovery And/or Radio Other Than Full Stock Firmwares.The Recovery Is A Seperate Standalone File/partition And As Such It Is Not Tied/linked/combined To The Rom And/or Kernel.Samsung Made The Skyrocket Very Easy To Flash Custom Roms And/or Root The PhoneThere Is No Bootloader To Unlock.Once You Have TWRP Installed Then You Can Install/Flash Roms, Radios, Kernels, Recoveries, Root The Phone, Etc.Newbs B4 You Flash Or Are Having A Problem:Read!!Now Read Some More!!Read The Stickies!!! What Are Stickies? Read THIS POST Search!!! HOWTO HERE or HERE We Can Tell By Your Question That You Havent Done Any Of The Above And You Might/Will Get Flamed.Once You Know What You Are Doing And Are Stumped At A Certain Problem, Post In The Q&a Forum.Problems And Questions Are To Be Posted In The "Q & A Forum" Not The Dev Forum !! Unless Its Directly Related To A Particular Rom, Then Post It In The Thread For That Rom If The Dev Allows Such Questions.For A Which Is The "BEST" Rom Or Any Adjective Thereof For A Rom As The Mod Will Close It, Read About Them In The Dev Forum And Decide On Your Own.If Someone Has Been Helpful Just Hit The "THANKS" Button Located On The Bottom Of The Post.