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F2FS installs. If you want to try out F2FS you will have to wipe your data parition which includes your internal sd card. Some steps if you want to backup your data. PLEASE NOTE DON'T DO THIS IF YOU DON'T KNOW WHAT YOU ARE DOING CAN CAUSE ISSUES OR LOST DATA. IF YOU DON'T DO THIS IT WILL STILL WORK WITH THE CURRENT FORMAT EXT4.

-- Flash the F2FS compatible TWRP Recovery

-- Boot into Recovery

-- Backup > Data

-- Save your internal SD card by transfering to your PC or if you have room your external_sd

-- Wipe > Advanced Wipe > Data > Repair or Change File System > Change File System > F2FS

-- Wipe > Advanced Wipe > Cache > Repair or Change File System > Change File System > F2FS

-- Copy the saved SD card content back to your device

-- Restore > Choose backup > Data (the warning about ext4 backup doesn’t matter)

-- Advanced > Fix Permissions

-- Wipe > Advanced Wipe > Cache & Dalvik Cache

-- Flash the 2-12-15 test build and gapps to ensure you got them

-- Reboot to system

