Galaxy Tab E sm-t77p (Sprint) Smells like brick - Android Q&A, Help & Troubleshooting

I hope I am in the right section the structure of the forum seems to have changed on me or something.
I have gotten frustrated at this point and do not even remember the entire process that has got me this far.
I am not new to rooting as I have rooted maybe 10+ phones all using the xda forum. I just do not trust any other site. This does not mean I am claiming to be a pro. I just know how to follow directions and always try to have a backup before I even get started.
Anywho to the best of my recollection I started with this guide: [ROOT][Samsung Galaxy Tab E][sm-t377p/sm-t560nu]
When I started root I had Marsh 6.0.1
I don't think I ended up rooting using that exact method, or if i did the tablet wouldn't start up but it had twrp.
Somewhere in between my tablet had twrp and I used the backup that was given by @shawn1976 for the system, boot and modem.
The tablet worked but the wifi was refusing to turn on. I searched and searched and couldn't fix the problem and so I think at that point I decided to try and maybe flash the 6.0.1 that it had originally had on it and worse case scenario I would just end up where I started nothing lost.
Anyhow at this point I have TWRP 2.8.7.0 and it gives error that zip file is corrupt on the 6.0.1.
and using odin it just gives:
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/005> Added!!
<ID:0/005> Odin engine v(ID:3.1203)..
<ID:0/005> File analysis..
<ID:0/005> SetupConnection..
<ID:0/005> Initialzation..
<ID:0/005> Get PIT for mapping..
<ID:0/005> Firmware update start..
<ID:0/005> SingleDownload.
<ID:0/005> aboot.mbn
<ID:0/005> FAIL! (Auth)
<ID:0/005>
<ID:0/005> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
When I try to restore the @shawn1976 Backup now it doesn't show anything in the list below [ Select Partitions to Restore] list.
when i first started i took note of the OEM Unlocking steps and made sure it was on, but am wondering now after it got reflashed was I supposed to redo that step again before trying to reflash?
I have no backup and I'm wondering what to do at this point. I tried looking for a solution hoping I could avoid posting like a nub about my problems. Any help you guys could give me would be appreciated.
so brief description is:
Galaxy Tab E sm-t377p (sprint)
Tablet doesn't boot up just goes straight to recovery.
TWRP is 2.8.7.0
And no partitions show up for restore in twrp for what was supposed to be my backup @shawn1976's Backup )
is it fixable?

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In download mode it says:
ODIN MODE
PRODUCT NAME: SM-T377P
CURRENT BINARY: Custom
FRP LOCK: OFF
WARRANTY VOID: 0x1 (2)
QUALCOM SECUREBOOT: ENABLE (CSB)
RP SWREV: S1, T1, H1, R1, A2, P1
SECURE DOWNLOAD : ENABLE

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S8Gonzo said:
In download mode it says:
ODIN MODE
PRODUCT NAME: SM-T377P
CURRENT BINARY: Custom
FRP LOCK: OFF
WARRANTY VOID: 0x1 (2)
QUALCOM SECUREBOOT: ENABLE (CSB)
RP SWREV: S1, T1, H1, R1, A2, P1
SECURE DOWNLOAD : ENABLE
Click to expand...
Click to collapse
If you have the T377P use the firmware from SamMobile to unbrick your device.
https://www.sammobile.com/firmwares/database/SM-T377P/

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I tried downloading it twice and twrp doesnt like it. It errors with [ zip file is corrupt] or just restarts twrp.
I'll try a 3rd download.

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I have a twrp version 3 in my device which is running on android 5.1.1
I think the problem is with your recovery , 2.8.7.0 is too old to run new binaries maybe?
Try installing latest version of Philz for your device.
Happened with me before when i had a mtk kitkat device and when i tried to install a lollipop rom using an old twrp recovery.
Fixed it by upgrading to traditional cwm-philz

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S8Gonzo said:
I tried downloading it twice and twrp doesnt like it. It errors with [ zip file is corrupt] or just restarts twrp.
I'll try a 3rd download.
Click to expand...
Click to collapse
That's because you need to unzip it and flash the md5 with odin not twrp.

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ashyx said:
That's because you need to unzip it and flash the md5 with odin not twrp.
Click to expand...
Click to collapse
They were all giving me errors. The flash image with odin and the twrp backup. After a bunch of troubleshooting it turns out my microSD card was the problem. It started giving me errors in windows so i reformatted and put all the files back. Then I reflashed the twrp backup and its able to boot up.
The problem is back to wifi switch flipping off as soon as i turn on. Im guessing it doesnt like the modem flash.
I keep trying to download a diff version of stock rom but I can't keep connected. It's a poopy line i have.
anywho I tried to install the stock rom I did manage to download and I get:
<OSM> Enter CS for MD5..
<OSM> Binary Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/004> Added!!
<ID:0/004> Odin engine v(ID:3.1100)..
<ID:0/004> File analysis..
<ID:0/004> SetupConnection..
<ID:0/004> Initialzation..
<ID:0/004> Get PIT for mapping..
<ID:0/004> Firmware update start..
<ID:0/004> SingleDownload.
<ID:0/004> aboot.mbn
<ID:0/004> NAND Write Start!!
<ID:0/004> FAIL! (Auth)
<ID:0/004>
<ID:0/004> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
I tried a few versions of odin, same result.

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Please help me, i have a hard bricked SM-T377P, if you have one in hands you can help me to unbrick mine, it will take only 2 minutes! Here is my thread: https://forum.xda-developers.com/android/development/help-sm-t377p-hard-bricked-debrick-img-t3711889
Thankssssssss!

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can I hide tethering with out root on this device