Step 1: Download the following files: ODIN 1.83 [HotFile] Android 4.0.3 ICS I9100XXLPB [<Bạn vui lòng đăng nhập hoặc đăng ký để xem được nội dung này!> ] Extract the contents of the ICS ROM and place them on the desktop for easy access later on. Step 2: Shut down Samsung KIES in case you have it open. If you don’t shut it down, it will interfere with ODIN. Step 3: Launch ODIN. Step 4: Shut down your Galaxy S II. Press and hold Volume Up + Home + Power buttons to enter Download Mode. Step 5: Connect your GS II with your PC using a USB cable. ODIN will detect it. Step 6: From ODIN, click on PDA and select I9100_CODE_I9100XXLPB_CL99600_REV02_user_low_ship. tar Step 7: Similar, click on CSC and choose GT-I9100-MULTI-CSC-OXXLP5_RST.tar. Click on MODEM and choose MODEM_I9100XXLPB_REV_02_CL1101286.tar Step 8: Click START to begin the flashing process. ODIN will now flash the ROM to your device. Video clip: