Samsung Galaxy i9300 S3 is finally presented by AndroidMuffins. People ask me the about the dual boot and dual ROM method on S3. Finally, I got Successes to make a tutorial for you but please note that this only work with ROMA customs in jelly bean 4.1.1
Prerequisites: 1. Samsung Galaxy S III 2. Being on Jelly Bean 4.1.1 3. Charged battery at least 90% 4. The kernel Siyah 1.7.2 5. However, if you do not have the Recovery siyah, install this file (place in Odin> PDA) 6. Have at least 2.5 GB of free space on your internal SD.
A glossary of all menu functions Dual Boot: • View Current Status : Allows you to view the current status of the second drive. • 1st to 2nd clone ROM ROM : Create a clone of the first ROM on the second. • 2nd to 1st clone ROM ROM : Create a clone of the second ROM first. • 2nd Remove : Removes the second ROM. • Swap 1st to 2nd ROM ROM : ROM Upgrade the first and second second ROM ROM ROM first. • Install zip from ROM to internal SD 2nd : Install the ROM with the second ROM zip file in the internal memory. • Install zip from rom to 2nd external SD : Install the ROM with the second ROM zip file to the external memory. • 2nd rom wipes data / cache : Clear data and cache of the second drive. • Wipe dalvik ROM 2nd : Delete the application cache the second drive. • Fix permissions ROM 2nd : Set permissions on the second drive. • Back up 2nd Roma : Save the second ROM external memory. • Restore as 2nd rom : Restore the backup on the 2nd drive. • Backup to internal SD 2nd Roma : Save the second ROM internal memory. • Restore as 2nd rom : Restore the backup of the 2nd rom on the internal memory.
ClockworkMod Recovery Siyah – Galaxy S3 1. Dual-Boot Menu – Galaxy S3 2. Warning : Neither I nor PhonAndroid are not responsible for damage to your Samsung Galaxy S3. 3. Installation: 4. Once the installation is done from a CWM Recovery Siyah file: 5. Go to the menu ” dual-boot options ” 6. Go to line ” to clone 1strom 2ndrom “and confirm with yes 7. Please wait while cloning it is long enough 8. Once completed you return to the normal menu so you have the same Rom 1 and 2nd position 9. Then install a ROM that will come over the first. So you have a ROM first position and a second position in another. 10. Upon reboot you will have three seconds to decide if you start on the first or second ROM (see the order in which you installed the ROMs for swap – Volume up : you start on the first ROM installed or else wait for 3 seconds and your phone will automatically start on the first drive. – Volume Down : and you start the ROM placed in second position. 11. Note : If you do not wait three second re-flash the Siyah kernel and it should return to normal. Warning: what you flashes later even if you are in the second rom that will get the first. Here is the kernel cleaning for a good cleaning.