[Samsung Galaxy Note 8 ROMs, Kernels, Recoveries, &] BigCountry907:
I'm not sure how you have only one 64 gb backup.

There are basically 4 disk on the device. Each disk has multiple partitions.

The disk are

/dev/block/sda

/dev/block/sdb

/dev/block/sdc

/dev/block/sdd

You need backups from both sda and sdd.

sdb and sdc are both xbl.elf But it dont hurt to back them up.

Most likly you have a messed up backup of sda.

You cant backup userdata partition in android u have to use safestrap Else it will endlessly fill the disk.

For now here are partitions you guys should be backing up. If you want to ever recover from a brick.

[COLOR="Green"][SIZE="5"]For pulling GPT of Each Disk[/SIZE][/COLOR]
dd if=/dev/block/sda of=/sdcard/gpt_main0.bin bs=1024 count=24
dd if=/dev/block/sdb of=/sdcard/gpt_main1.bin bs=1024 count=24
dd if=/dev/block/sdc of=/sdcard/gpt_main2.bin bs=1024 count=24
dd if=/dev/block/sdd of=/sdcard/gpt_main3.bin bs=1024 count=24

[COLOR="green"][SIZE="5"]For pulling each partition[/SIZE][/COLOR]

dd if=/dev/block/sda1 of=/sdcard/modemst1.dd
dd if=/dev/block/sda2 of=/sdcard/modemst2.dd
dd if=/dev/block/sda3 of=/sdcard/fsc.dd
dd if=/dev/block/sda4 of=/sdcard/ssd.dd
dd if=/dev/block/sda5 of=/sdcard/persist.dd
dd if=/dev/block/sda6 of=/sdcard/efs.dd
dd if=/dev/block/sda7 of=/sdcard/param.dd
dd if=/dev/block/sda8 of=/sdcard/misc.dd
dd if=/dev/block/sda9 of=/sdcard/keystore.dd
dd if=/dev/block/sda10 of=/sdcard/bota.dd
dd if=/dev/block/sda11 of=/sdcard/fota.dd
dd if=/dev/block/sda12 of=/sdcard/persistent.dd
dd if=/dev/block/sda13 of=/sdcard/steady.dd
dd if=/dev/block/sda14 of=/sdcard/dqmdbg.dd
dd if=/dev/block/sda15 of=/sdcard/nad_refer.dd
dd if=/dev/block/sda16 of=/sdcard/apnhlos.dd
dd if=/dev/block/sda17 of=/sdcard/modem.dd
dd if=/dev/block/sda18 of=/sdcard/boot.dd
dd if=/dev/block/sda19 of=/sdcard/recovery.dd
dd if=/dev/block/sda20 of=/sdcard/system.dd
dd if=/dev/block/sda21 of=/sdcard/cache.dd
dd if=/dev/block/sda22 of=/sdcard/carrier.dd
dd if=/dev/block/sda23 of=/sdcard/omr.dd
dd if=/dev/block/sda24 of=/sdcard/debug.dd

dd if=/dev/block/sdb1 of=/sdcard/xbl.dd

dd if=/dev/block/sdc1 of=/sdcard/xblbak.dd

dd if=/dev/block/sdd1 of=/sdcard/rpm.dd
dd if=/dev/block/sdd2 of=/sdcard/tz.dd
dd if=/dev/block/sdd3 of=/sdcard/hyp.dd
dd if=/dev/block/sdd4 of=/sdcard/fsg.dd
dd if=/dev/block/sdd5 of=/sdcard/sec.dd
dd if=/dev/block/sdd6 of=/sdcard/pmic.dd
dd if=/dev/block/sdd7 of=/sdcard/dsp.dd
dd if=/dev/block/sdd8 of=/sdcard/abl.dd
dd if=/dev/block/sdd9 of=/sdcard/devinfo.dd
dd if=/dev/block/sdd10 of=/sdcard/bluetooth.dd
dd if=/dev/block/sdd11 of=/sdcard/bksecapp.dd
dd if=/dev/block/sdd12 of=/sdcard/keymaster.dd
dd if=/dev/block/sdd13 of=/sdcard/cmnlib.dd
dd if=/dev/block/sdd14 of=/sdcard/cmnlib64.dd
dd if=/dev/block/sdd15 of=/sdcard/apdp.dd
dd if=/dev/block/sdd16 of=/sdcard/msadp.dd
dd if=/dev/block/sdd17 of=/sdcard/dpo.dd
dd if=/dev/block/sdd18 of=/sdcard/limits.dd
dd if=/dev/block/sdd19 of=/sdcard/devcfg.dd
dd if=/dev/block/sdd20 of=/sdcard/storesec.dd
dd if=/dev/block/sdd21 of=/sdcard/ddr.dd
dd if=/dev/block/sdd22 of=/sdcard/pad.dd

[COLOR="green"][SIZE="5"]IN CASE U WANT USERDATA (USE TERMINAL IN SAFESTRAP)[/SIZE][/COLOR]
dd if=/dev/block/sda25 of=/sdcard/userdata.dd

I will make a Guide of the step by step process to make a unbrick rom.

For now backup your devices.

The commands will put the backup files in the internal storage of the device.

After you run the commands reboot the device.

Only need reboot because windows may not show the files until you disconnect and reconnect the usb or reboot.

but believe me the files will be there.

Open the folder in windows and copy paste.