[SuperSU] xerubium:
It should be exFAT as I think I formatted the microSD card by the phone before using it. In case I remember it wrong, I tried the ext2fsd, windows still ask me to format it.

The PIT is for reallocate the partition of the internal memory of my phone from stock 2GB(app)+10GB(data) to 5GB(app)+7GB(data). But I sometimes wonder is the custom PIT working perfectly as in Android Settings I saw two partition while in DiskUsage other then extSD only one partition scannable and the percentage go gradually from 0% to 160% and then 100% and the size scanned obviously is the combination of both partition. I tried the "mount" command and below is the result. I don't know if it is valid as I have plugged out the microSD card and plugged in.

u0_a57@GT-I9100:/ $ mount
rootfs / rootfs ro,relatime 0 0
tmpfs /dev tmpfs rw,seclabel,nosuid,relatime,mode=755 0 0
devpts /dev/pts devpts rw,seclabel,relatime,mode=600 0 0
none /dev/cpuctl cgroup rw,relatime,cpu 0 0
proc /proc proc rw,relatime 0 0
sysfs /sys sysfs rw,seclabel,relatime 0 0
selinuxfs /sys/fs/selinux selinuxfs rw,relatime 0 0
none /sys/fs/cgroup tmpfs rw,seclabel,relatime,mode=750,gid=1000 0 0
/sys/kernel/debug /sys/kernel/debug debugfs rw,relatime 0 0
none /acct cgroup rw,relatime,cpuacct 0 0
tmpfs /mnt/asec tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
tmpfs /mnt/obb tmpfs rw,seclabel,relatime,mode=755,gid=1000 0 0
tmpfs /mnt/fuse tmpfs rw,seclabel,relatime,mode=775,gid=1000 0 0
/dev/block/mmcblk0p9 /system ext4 ro,seclabel,nosuid,nodev,relatime,user_xattr,barrier=1,data=ordered 0 0
/dev/block/mmcblk0p7 /cache ext4 rw,seclabel,nosuid,nodev,noatime,errors=panic,user_xattr,barrier=1,journal_async_commit,data=ordered 0 0
/dev/block/mmcblk0p1 /efs ext4 rw,seclabel,nosuid,nodev,noatime,errors=panic,user_xattr,barrier=1,journal_async_commit,data=ordered 0 0
/dev/block/mmcblk0p10 /data ext4 rw,seclabel,nosuid,nodev,noatime,errors=panic,user_xattr,barrier=1,journal_async_commit,data=ordered,noauto_da_alloc,discard 0 0
/dev/block/mmcblk0p12 /preload ext4 ro,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1,journal_async_commit,data=ordered 0 0
/dev/block/dm-0 /mnt/asec/com.keramidas.TitaniumBackupPro-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/vold/259:3 /mnt/media_rw/sdcard0 vfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/block/vold/259:3 /mnt/secure/asec vfat rw,dirsync,nosuid,nodev,noexec,relatime,uid=1023,gid=1023,fmask=0007,dmask=0007,allow_utime=0020,codepage=cp437,iocharset=iso8859-1,shortname=mixed,utf8,errors=remount-ro 0 0
/dev/fuse /storage/sdcard0 fuse rw,nosuid,nodev,relatime,user_id=1023,group_id=1023,default_permissions,allow_other 0 0
/dev/block/dm-1 /mnt/asec/com.keramidas.TitaniumBackup-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-2 /mnt/asec/com.autodesk.forceeffectmotion-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-3 /mnt/asec/com.howbig.mobadroid-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-4 /mnt/asec/com.microsoft.rdc.android-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-5 /mnt/asec/klb.android.lovelive-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-6 /mnt/asec/org.zwanoo.android.speedtest-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-7 /mnt/asec/nadsoft.cplusplusprogrammingreferencefree-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-8 /mnt/asec/com.square_enix.kairisei_MA-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-9 /mnt/asec/jp.cybernoids.shizuku-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-10 /mnt/asec/com.bigduckgames.flow-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-11 /mnt/asec/com.dataviz.docstogo-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-12 /mnt/asec/jp.ne.sakura.ccice.audipo-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-13 /mnt/asec/jp.co.mixi.monsterstrike-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-14 /mnt/asec/com.teamviewer.teamviewer.market.mobile-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-15 /mnt/asec/com.miniclip.plagueinc-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-16 /mnt/asec/jp.gungho.bm-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-17 /mnt/asec/jp.gungho.pad-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-18 /mnt/asec/com.linecorp.LGTMTMG-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-19 /mnt/asec/com.rayark.pluto-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-20 /mnt/asec/info.projectkyoto.mms.assetmanager-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-21 /mnt/asec/tv.danmaku.bili-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-22 /mnt/asec/com.evernote.skitch-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-23 /mnt/asec/com.google.android.apps.plus-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-24 /mnt/asec/com.expensemanager-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-25 /mnt/asec/com.sega.chainchronicle-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-26 /mnt/asec/com.mobilesoft.kmb.mobile-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-27 /mnt/asec/jp.naver.line.android-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-28 /mnt/asec/com.rayark.Cytus.full-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-29 /mnt/asec/com.tencent.mm-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-30 /mnt/asec/com.bigduckgames.flowbridges-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-31 /mnt/asec/com.quoord.tapatalkxda.activity-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-32 /mnt/asec/com.mxtech.videoplayer.ad-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-33 /mnt/asec/com.imangi.templerun2-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-34 /mnt/asec/com.ireadercity-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-35 /mnt/asec/com.gn.android.compass-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-36 /mnt/asec/org.mozilla.firefox-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-37 /mnt/asec/com.gamevil.zenonia5.global-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-38 /mnt/asec/dk.houseonfire.android.thesilentage-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-39 /mnt/asec/com.skype.raider-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-40 /mnt/asec/com.zhihu.android-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-41 /mnt/asec/com.google.android.apps.books-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-42 /mnt/asec/com.mtr.mtrmobile-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-43 /mnt/asec/com.ea.games.r3_row-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-44 /mnt/asec/jp.co.asbit.pvstar-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-45 /mnt/asec/com.seventeenmiles.sketch-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-46 /mnt/asec/com.gamevil.zenonia3.global-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-47 /mnt/asec/com.nwfb-2 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
/dev/block/dm-48 /mnt/asec/com.amazon.kindle-1 ext4 ro,dirsync,seclabel,nosuid,nodev,noatime,user_xattr,barrier=1 0 0
u0_a57@GT-I9100:/ $

I tried the chkdsk in windows, it says it's RAW and chkdsk cannot use for RAW.

I also tried this trick: http://xdaforums.com/galaxy-s3/general/how-to-64gb-exfat-sdxc-card-ruined-t1797499, but I found non applicable as I cannot saw the microSD card in recovery mode, and I tried to proceed forcefully but adb pull pulled 0 files and skipped 0 files

Is it still possible to recover all files?