How to wipe a phone with corrupted storage

I've got a Sprint Galaxy Note 2 (SPH-L900) with storage issues. For a few months now, the internal storage will occasionally become corrupted to the point where it won't boot. I have to wipe, reformat, and reinstall to get it running again using TWRP. When it died today, I decided it was time to trade up to a newer model. However, when I try to reformat the internal storage as usual, TWRP claims that it can't access the internal storage at all. The regular partitions are all in the list of things on which I could operate, but they're all listed as being not present in the phone. Is there any way around this?

I'd like to sell the Note 2 for whatever I can get for it (with appropriate disclosure, of course), but I'm not about to let it go without convincing myself that my personal data has been completely overwritten. If TWRP can't see the internal storage, how can I reformat it? Might adb or some other computer-based solution have better luck? I've never run that before, except when flashing TWRP with Odin. The phone won't currently boot past the initial black & white "Samsung Galaxy Note II" screen, unless I'm booting into recovery.

FWIW, I've really enjoyed using the MoKee 6.0.1 ROM on this phone recently. It's a pity the phone died out from under it. It has several nerd-friendly features that my wife's stock S5 lacks, and which I'm sure my new Note 4 will also lack.

Corrupted eMMC?

I'm trying everything on my XT1068 to let it boot again, since is stucked in bootloop.
Now I think the eMMC is corrupted. Is there any test to admit or exclude it?

SD card showing as corrupted on rooted MM (works fine on non-root phone)

As mentioned in the title, the SD card is showing as "corrupted" on my phone (MM, root). If I pop it in my wife's Note 4 (official firmware, non-root), it works just fine. So, there's absolutely nothing wrong with the card and I'm assuming that root is the culprit. Has anyone noticed a similar issue? If so, have you found a solution? Going the non-root route is not an option for me. Thanks in advance.

SD card corrupted unable to save data after format

Hello,
I recently got a Galaxy S7 Edge and was using Google Play Music to download songs onto a rather new 64gb microSD card (Samsung EVO brand). I was downloading several songs and didn't have any problems writing to the card at first. But then I had to leave my WiFi connection for sometime, which paused the downloads. When I returned the downloading attempted to resume, but I got an error saying it was unable to download due to lack of space on my card. I knew this wasn't possible since the card was empty and I hadn't download even close to 64gb of music, or anything else. So I checked my storage, and it said my card was corrupted and needed to be formatted. So I formatted it but still got the same problem, saying I didn't have enough space on the card. I then decided to try downloading music using Spotify to see if it was a bug with GPM. Unfortunately Spotify was giving me the same error, and now I'm stuck with a useless microSD card. Has anyone else had a problem like this? Note the card is recognized and shows me that I have about 60gb available, but I cannot write anything to it. Please help!

Link2Sd [Nevermore PC need for fix corrupted sdcard sdext2 partition]

Well, so long time ago, i am trying to understand, how Link2Sd works.

their site says "umount and do e2fsck".

but the sdext2 partition is umonteable.

i uninstalled link2sd, but the sdext2 partition, still was able.

Ok, here is the following, to do e2fsck WITHOUT NEED PC :

1: link2sd creates 3 scripts :

/etc/install-recovery.sh
/data/data/com.bualink2sd/files/link2sd.sh

/etc/init.d/11Link2sd
(if init.d enabled)

and a /system/bin/debuggerd

that last when we uninstall link2sd, is a little copy of install-recovery.sh and stays persistent on the system,
so, we have uninstall all scripts, reboot the phone, and edit the debuggerd SCRIPT for the e2fsck at EACH BOOT. Incliding before mounting sdext2 line , this:

>> e2fsck -y /dev/block/mmcblk0p2 <<

i am indignated, because Link2Sd is a PAID app , so if we pay this, we have right to have A GOOD THING, instead this BAD thing, searching masked scripts in /system/bin

ENJOY!
Sent from my XT320 using xda premium