[AT&T, Rogers, Bell, Telus Samsung Galaxy S III] JimFarliinNM:
Noob here. Be gentle.

Used an emulator on my phone.

Currently running I747UCUFNE4

Done. I was on TWRP 2.7.whatever, but I went back to 2.6.3.1 so that I followed EXACTLY.

Failed twice.

Went back and checked which bootloader I was on. Still "I747UCUFNE4".

After second fail, I dumped the log to the SD card:

__bionic_open_tzdata: couldn't find any tzdata when looking for localtime!
__bionic_open_tzdata: couldn't find any tzdata when looking for GMT!
__bionic_open_tzdata: couldn't find any tzdata when looking for posixrules!
Starting TWRP 2.6.3.1 on Wed Jul 2 14:51:31 2014
BOARD_HAS_NO_REAL_SDCARD := true
I:Internal path defined: '/data/media'
I:External path defined: '/external_sd'
I:Mount: Unable to find partition for path '/data'
TW_NO_REBOOT_BOOTLOADER := true
RECOVERY_SDCARD_ON_DATA := true
I:Lun file '/sys/devices/virtual/android_usb/android0/f_mass_storage/lun_ex/file' does not exist, USB storage mode disabled
TW_HAS_DOWNLOAD_MODE := true
TW_INCLUDE_CRYPTO := true
I:TW_BRIGHTNESS_PATH := /sys/devices/platform/msm_fb.524801/leds/lcd-backlight/brightness
Starting the UI...Pixel format: 720x1280 @ 32bpp
Pixel format: RGBX_8888
framebuffer: fd 4 (720 x 1280)
=> Linking mtab
=> Processing recovery.fstab
I:Processing '/boot'
I:Processing '/system'
I:Processing '/data'
I:Created '/sdcard' folder.
I:mount '/data/media' '/sdcard' process ended with RC=0
I:mount '/data/media/0' '/sdcard' process ended with RC=0
I:mount '/data/media/0' '/sdcard' process ended with RC=0
I:Backup folder set to '/data/media/0/TWRP/BACKUPS/3f194cea'
I:Settings storage is '/data/media/0'
I:Processing '/cache'
I:Processing '/recovery'
I:Processing '/external_sd'
I:Created '/external_sd' folder.
I:Processing '/usb-otg'
I:Created '/usb-otg' folder.
Updating partition details...
I:Data backup size is 1600MB, size: 12335MB, used: 1655MB, free: 10492MB, in data/media: 54MB.
I:Unable to mount '/usb-otg'
I:Actual block device: '', current file system: 'vfat'
I:Unmounting main partitions...

Partition Logs:
/boot | /dev/block/mmcblk0p7 | Size: 10MB
Flags: Can_Be_Backed_Up IsPresent
Primary_Block_Device: /dev/block/mmcblk0p7
Display_Name: Boot
Storage_Name: boot
Backup_Path: /boot
Backup_Name: boot
Backup_Display_Name: Boot
Storage_Path: /boot
Current_File_System: emmc
Fstab_File_System: emmc
Backup_Method: dd

/system | /dev/block/mmcblk0p14 | Size: 1476MB Used: 621MB Free: 854MB Backup Size: 621MB
Flags: Can_Be_Mounted Can_Be_Wiped Can_Be_Backed_Up Wipe_Available_in_GUI IsPresent
Primary_Block_Device: /dev/block/mmcblk0p14
Display_Name: System
Storage_Name: System
Backup_Path: /system
Backup_Name: system
Backup_Display_Name: System
Storage_Path: /system
Current_File_System: ext4
Fstab_File_System: ext4
Backup_Method: files

/data | /dev/block/mmcblk0p15 | Size: 12335MB Used: 1655MB Free: 10492MB Backup Size: 1600MB
Flags: Can_Be_Mounted Can_Be_Wiped Can_Be_Backed_Up Wipe_During_Factory_Reset Wipe_Available_in_GUI IsPresent Can_Be_Encrypted Has_Data_Media Can_Encrypt_Backup Use_Userdata_Encryption Is_Storage Is_Settings_Storage
Symlink_Path: /data/media/0
Symlink_Mount_Point: /sdcard
Primary_Block_Device: /dev/block/mmcblk0p15
Length: -16384
Display_Name: Data
Storage_Name: Internal Storage
Backup_Path: /data
Backup_Name: data
Backup_Display_Name: Data
Storage_Path: /data/media/0
Current_File_System: ext4
Fstab_File_System: ext4
Backup_Method: files

/cache | /dev/block/mmcblk0p17 | Size: 826MB Used: 172MB Free: 653MB Backup Size: 172MB
Flags: Can_Be_Mounted Can_Be_Wiped Can_Be_Backed_Up Wipe_During_Factory_Reset Wipe_Available_in_GUI IsPresent
Primary_Block_Device: /dev/block/mmcblk0p17
Display_Name: Cache
Storage_Name: Cache
Backup_Path: /cache
Backup_Name: cache
Backup_Display_Name: Cache
Storage_Path: /cache
Current_File_System: ext4
Fstab_File_System: ext4
Backup_Method: files

/recovery | /dev/block/mmcblk0p18 | Size: 10MB
Flags: Can_Be_Backed_Up IsPresent
Primary_Block_Device: /dev/block/mmcblk0p18
Display_Name: Recovery
Storage_Name: recovery
Backup_Path: /recovery
Backup_Name: recovery
Backup_Display_Name: Recovery
Storage_Path: /recovery
Current_File_System: emmc
Fstab_File_System: emmc
Backup_Method: dd

/external_sd | /dev/block/mmcblk1p1 | Size: 15185MB Used: 7523MB Free: 7662MB Backup Size: 7523MB
Flags: Can_Be_Mounted Can_Be_Wiped Wipe_Available_in_GUI Removable IsPresent Is_Storage
Primary_Block_Device: /dev/block/mmcblk1p1
Alternate_Block_Device: /dev/block/mmcblk1
Display_Name: Micro SDcard
Storage_Name: Micro SDcard
Backup_Path: /external_sd
Backup_Name: external_sd
Backup_Display_Name: Micro SDcard
Storage_Path: /external_sd
Current_File_System: vfat
Fstab_File_System: vfat
Backup_Method: files

/usb-otg | | Size: 0MB Used: 0MB Free: 0MB Backup Size: 0MB
Flags: Can_Be_Mounted Can_Be_Wiped Wipe_Available_in_GUI Removable Is_Storage
Primary_Block_Device: /dev/block/sda1
Alternate_Block_Device: /dev/block/sda
Display_Name: USB-OTG
Storage_Name: USB-OTG
Backup_Path: /usb-otg
Backup_Name: usb-otg
Backup_Display_Name: USB-OTG
Storage_Path: /usb-otg
Current_File_System: vfat
Fstab_File_System: vfat
Backup_Method: files

I:Loading package: TWRP (/script/ui.xml)
I:Loading package: TWRP (/data/media/0/TWRP/theme/ui.zip)
I:Loading package: TWRP (/res/ui.xml)
I:Loading resources...
I:Loading variables...
I:Loading pages...
I:Loading page main
I:Loading page main2
I:Loading page install
I:Loading page flash_confirm
I:Loading page flash_zip
I:Loading page flash_done
I:Loading page clear_vars
I:Loading page confirm_action
I:Loading page action_page
I:Loading page singleaction_page
I:Loading page action_complete
I:Loading page filecheck
I:Loading page rebootcheck
I:Loading page wipe
I:Loading page advancedwipe
I:Loading page formatdata
I:Loading page formatdata_confirm
I:Loading page backup
I:Loading page backupname1
I:Loading page backupname2
I:Loading page backupencryption
I:Loading page backupencryption2
I:Loading page checkbackuppassword
I:Loading page backup_run
I:Loading page restore
I:Unable to open '/data/media/0/TWRP/BACKUPS/3f194cea'
I:Loading page restore_read
I:Loading page restore_decrypt
I:Loading page try_restore_decrypt
I:Loading page restore_select
I:Loading page renamebackup
I:Loading page restore_run
I:Loading page selectstorage
I:Loading page mount
I:Loading page usb_mount
I:Loading page usb_umount
I:Loading page reboot
I:Loading page settings
I:Loading page timezone
I:Loading page screen
I:Loading page advanced
I:Loading page partsdcard
I:Loading page htcdumlock
I:Loading page lock
I:Loading page filemanagerlist
I:Loading page filemanageroptions
I:Loading page choosedestinationfolder
I:Loading page filemanagerrenamefile
I:Loading page filemanagerrenamefolder
I:Loading page filemanagerchmod
I:Loading page filemanagerconfirm
I:Loading page filemanageracction
I:Loading page decrypt
I:Loading page trydecrypt
I:Loading page terminalfolder
I:Loading page terminalcommand
I:Loading page sideload
I:Loading page installsu
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Switching packages (TWRP)
SELinux contexts loaded from /file_contexts
E:Cannot load volume /misc!
E:Cannot load volume /misc!
Startup Commands: ro.boot.hardware=qcom
ro.boot.debug_level=0x4f4c
ro.boot.cp_debug_level=0x55FF
ro.boot.emmc_checksum=3
ro.boot.warranty_bit=1
ro.boot.bootloader=I747UCUFNE4
ro.boot.nvdata_backup=1
ro.boot.boot_recovery=1
ro.boot.batt_check_recovery=1
ro.boot.emmc=true
ro.boot.serialno=3f194cea
ro.boot.baseband=msm
ro.serialno=3f194cea
ro.bootmode=unknown
ro.baseband=msm
ro.bootloader=I747UCUFNE4
ro.hardware=qcom
ro.revision=16
ro.emmc=0
ro.factorytest=0
ro.secure=0
ro.allow.mock.location=1
ro.debuggable=1
persist.sys.usb.config=mtp,adb
ro.build.id=JSS15J
ro.build.display.id=cm_d2att-eng 4.3 JSS15J eng.dees_troy.20131124.141043 test-keys
ro.build.version.incremental=eng.dees_troy.20131124.141043
ro.build.version.sdk=18
ro.build.version.codename=REL
ro.build.version.release=4.3
ro.build.date=Sun Nov 24 14:11:08 UTC 2013
ro.build.date.utc=0
ro.build.type=eng
ro.build.user=dees_troy
ro.build.host=ded1.ktechnology.net
ro.build.tags=test-keys
ro.product.model=SAMSUNG-SGH-I747
ro.product.brand=samsung
ro.product.name=d2uc
ro.product.device=d2att
ro.product.board=MSM8960
ro.product.cpu.abi=armeabi-v7a
ro.product.cpu.abi2=armeabi
ro.product.manufacturer=samsung
ro.product.locale.language=en
ro.product.locale.region=US
ro.wifi.channels=
ro.board.platform=msm8960
ro.build.product=d2att
ro.build.description=d2uc-user 4.1.2 JZO54K I747UCDMG2 release-keys
ro.build.fingerprint=samsung/d2uc/d2att:4.1.2/JZO54K/I747UCDMG2:user/release-keys
ro.build.characteristics=default
ro.cm.device=d2att
rild.libargs=-d /dev/smd0
telephony.lteOnGsmDevice=1
ro.telephony.default_network=9
keyguard.no_require_sim=true
ro.com.android.dateformat=MM-dd-yyyy
ro.carrier=unknown
ro.sf.lcd_density=320
ro.hwui.text_cache_width=2048
ro.vendor.extension_library=/system/lib/libqc-opt.so
ro.ril.hsxpa=1
ro.ril.gprsclass=10
persist.radio.add_power_save=1
persist.radio.snapshot_disabled=1
com.qc.hardware=true
persist.radio.apm_sim_not_pwdn=1
ro.telephony.call_ring.multiple=0
ro.ril.transmitpower=true
ro.opengles.version=131072
persist.audio.vr.enable=false
persist.audio.speaker.location=high
persist.timed.enable=true
ro.emmc.sdcard.partition=17
ro.use_data_netmgrd=true
persist.data_netmgrd_nint=16
lpa.decode=true
rild.libpath=/system/lib/libril-qc-qmi-1.so
ril.subscription.types=NV,RUIM
ro.ril.svdo=true
ro.cdma.subscribe_on_ruim_ready=true
persist.radio.no_wait_for_card=0
media.aac_51_output_enabled=true
persist.rild.nitz_plmn=
persist.rild.nitz_long_ons_0=
persist.rild.nitz_long_ons_1=
persist.rild.nitz_long_ons_2=
persist.rild.nitz_long_ons_3=
persist.rild.nitz_short_ons_0=
persist.rild.nitz_short_ons_1=
persist.rild.nitz_short_ons_2=
persist.rild.nitz_short_ons_3=
persist.audio.fluence.mode=endfire
persist.audio.handset.mic=digital
ro.qc.sdk.audio.fluencetype=fluence
ro.cwm.enable_key_repeat=true
ro.cwm.repeatable_keys=114,115
debug.sf.hw=1
debug.egl.hw=1
debug.composition.type=dyn
persist.hwc.mdpcomp.enable=true
debug.mdpcomp.logs=0
ro.telephony.ril_class=SamsungQualcommRIL
qcom.hw.aac.encoder=true
dalvik.vm.heapstartsize=8m
dalvik.vm.heapgrowthlimit=192m
dalvik.vm.heapsize=512m
dalvik.vm.heaptargetutilization=0.75
dalvik.vm.heapminfree=512k
dalvik.vm.heapmaxfree=8m
ro.rommanager.developerid=cyanogenmod
ro.url.legal=http://www.google.com/intl/%s/mobile/android/basic/phone-legal.html
ro.url.legal.android_privacy=http://www.google.com/intl/%s/mobile/android/basic/privacy.html
ro.com.google.clientidbase=android-google
ro.com.android.wifi-watchlist=GoogleGuest
ro.setupwizard.enterprise_mode=1
ro.com.android.dataroaming=false
ro.build.selinux=1
persist.sys.root_access=1
ro.cm.version=10.2-20131124-UNOFFICIAL-d2att
ro.modversion=10.2-20131124-UNOFFICIAL-d2att
ro.config.ringtone=Orion.ogg
ro.config.notification_sound=Argon.ogg
ro.config.alarm_alert=Hassium.ogg
ro.kernel.android.checkjni=1
dalvik.vm.dexopt-flags=m=y
net.bt.name=Android
net.change=net.bt.name
dalvik.vm.stack-trace-file=/data/anr/traces.txt
init.svc.ueventd=running
init.svc.recovery=running
service.adb.root=1
init.svc.adbd=running

Running boot script...
I:/sbin/postrecoveryboot.sh process ended with RC=0

Finished running boot script.
I:Copying file /cache/recovery/log to /cache/recovery/last_log
I:Attempt to load settings from settings file...
I:Settings file '/data/media/0/TWRP/.twrps' not found.
I:Copying file /etc/recovery.fstab to /cache/recovery/recovery.fstab
I:Version number saved to '/cache/recovery/.version'
__bionic_open_tzdata: couldn't find any tzdata when looking for CST6CDT!
__bionic_open_tzdata: couldn't find any tzdata when looking for posixrules!
I:Switching packages (TWRP)
I:Set page: 'install'
I:Set page: 'selectstorage'
I:Backup folder set to '/external_sd/TWRP/BACKUPS/3f194cea'
I:Set page: 'clear_vars'
I:Set page: 'install'
I:Set page: 'flash_confirm'
I:Set page: 'flash_zip'
I:Set page: 'flash_zip'
Installing '/external_sd/d2att_I747UCUEMJB_bootloader_modem_4.3.zip'...
Checking for MD5 file...
I:Cannot find file /external_sd/d2att_I747UCUEMJB_bootloader_modem_4.3.zip.md5
Skipping MD5 check: no MD5 file found.
I:Zip does not contain SELinux file_contexts file in its root.
script aborted: assert failed: getprop("ro.bootloader") == "I747UCALEM" ||
getprop("ro.bootloader") == "I747UCALG1" ||
getprop("ro.bootloader") == "I747UCDLK3" ||
getprop("ro.bootloader") == "I747UCDMG2" ||
getprop("ro.bootloader") == "I747UCUEMJ2" ||
getprop("ro.bootloader") == "I747UCUEMJB"
assert failed: getprop("ro.bootloader") == "I747UCALEM" ||	getprop("ro.bootloader") == "I747UCALG1" ||	getprop("ro.bootloader") == "I747UCDLK3" ||	getprop("ro.bootloader") == "I747UCDMG2" ||	getprop("ro.bootloader") == "I747UCUEMJ2" ||	getprop("ro.bootloader") == "I747UCUEMJB"
E:Error executing updater binary in zip '/external_sd/d2att_I747UCUEMJB_bootloader_modem_4.3.zip'
Error flashing zip '/external_sd/d2att_I747UCUEMJB_bootloader_modem_4.3.zip'
Updating partition details...
I:Data backup size is 1600MB, size: 12335MB, used: 1655MB, free: 10492MB, in data/media: 54MB.
I:Unable to mount '/usb-otg'
I:Actual block device: '', current file system: 'vfat'
I:Set page: 'flash_done'
I:Set page: 'clear_vars'
I:Set page: 'main2'
I:Set page: 'advanced'
I:Set page: 'confirm_action'
I:Set page: 'action_page'
I:Copying file /tmp/recovery.log to /external_sd/recovery.log

What did I do wrong?