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Help ODIN Error restoring to Stock AT&T

Okay so, I recently updated my Galaxy S6 At&T to the latest firmware. But when I try to restore back to stock, I get this error (log below). On the device itself it reads: "SW REV. CHECK FAIL. DEVICE: 2, BINARY: 1". Is there anything I can do? I've been trying all day today!

<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> G920AUCU1AOCE_CL4351102_QB4488924_REV02_user_low_ship.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/004> Added!!
<ID:0/004> Odin engine v(ID:3.1005)..
<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> sboot.bin
<ID:0/004> NAND Write Start!!
<ID:0/004> FAIL!
<ID:0/004>
<ID:0/004> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
 
Okay so, I recently updated my Galaxy S6 At&T to the latest firmware. But when I try to restore back to stock, I get this error (log below). On the device itself it reads: "SW REV. CHECK FAIL. DEVICE: 2, BINARY: 1". Is there anything I can do? I've been trying all day today!

<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> G920AUCU1AOCE_CL4351102_QB4488924_REV02_user_low_ship.tar.md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/004> Added!!
<ID:0/004> Odin engine v(ID:3.1005)..
<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> sboot.bin
<ID:0/004> NAND Write Start!!
<ID:0/004> FAIL!
<ID:0/004>
<ID:0/004> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
I'm a little confused about your first line, "...I recently updated my Galaxy S6 At&T to the latest firmware. But when I try to restore back to stock...."
You're on the latest firmware....which is stock...what do you mean by "restore back to stock"?
Are you trying to downgrade to a previous firmware?

If so, and I'm not that knowledgeable with the S6, but it that ok to do? I mean, it won't mess with anything? :o
 
You may even be able to restore back to out-of-the-box,but,likely on the latest update,w/KIES 3.
I'm guessing you're rooted.
I was able to accept an update on my rooted Note Edge just last week w/KIES 3.
It took away root & TWRP,a total restore,including stock recovery,even kept my data,was able to re-root,YMMV.
But,if you happen to have rooted your device,there's no reversing the KNOX e-fuse.
Likewise,all future updates will have to either be taken via KIES/ODIN,or a flashable pre-rooted ROM/update.
 
I'm a little confused about your first line, "...I recently updated my Galaxy S6 At&T to the latest firmware. But when I try to restore back to stock...."
You're on the latest firmware....which is stock...what do you mean by "restore back to stock"?
Are you trying to downgrade to a previous firmware?

If so, and I'm not that knowledgeable with the S6, but it that ok to do? I mean, it won't mess with anything? :eek:

Yeah, sorry, I meant the first firmware the smartphone came on.
 
You may even be able to restore back to out-of-the-box,but,likely on the latest update,w/KIES 3.
I'm guessing you're rooted.
I was able to accept an update on my rooted Note Edge just last week w/KIES 3.
It took away root & TWRP,a total restore,including stock recovery,even kept my data,was able to re-root,YMMV.
But,if you happen to have rooted your device,there's no reversing the KNOX e-fuse.
Likewise,all future updates will have to either be taken via KIES/ODIN,or a flashable pre-rooted ROM/update.

My Galaxy S6 doesn't work with KIES when I try. And I was rooted but I restored it to stock, 5.0.2. But then updated my phone when I seen an update, it was a small update, no 5.1.1 or anything. But I can't root on this update, so I want to downgrade back.
 
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