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Odin3 v3.09 UNROOT Fail! (Auth)

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kevinwb
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Default Odin3 v3.09 UNROOT Fail! (Auth)

Hey guys. I got my S5 less than a month ago and promptly rooted it. Today I've been having issues with the phone. It starts up but the screen doesn't turn on. I have to take out the battery and restart many times before it works and then any pressure put on the phone causes it to shut off. It hasn't been damaged physically in any way but I have to take it back to the store, so I believe I need to unroot to keep my warranty intact.

I've been using a S5 firmware I found on this forum and trying to unroot the phone, but I get this string of errors. What can I do? I'm really in over my head here. Any suggestions are welcome.

<ID:0/003> Added!!
<OSM> Enter CS for MD5..
<OSM> Check MD5.. Do not unplug the cable..
<OSM> Please wait..
<OSM> G900AUCU1ANCE_G900AATT1ANCE_G900AUCU1ANCE_HOME.tar .md5 is valid.
<OSM> Checking MD5 finished Sucessfully..
<OSM> Leave CS..
<ID:0/003> Odin v.3 engine (ID:3)..
<ID:0/003> File analysis..
<ID:0/003> SetupConnection..
<ID:0/003> Initialzation..
<ID:0/003> Get PIT for mapping..
<ID:0/003> Firmware update start..
<ID:0/003> SingleDownload.
<ID:0/003> aboot.mbn
<ID:0/003> NAND Write Start!!
<ID:0/003> FAIL! (Auth)
<ID:0/003>
<ID:0/003> Complete(Write) operation failed.
<OSM> All threads completed. (succeed 0 / failed 1)
 
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Quote:
Originally Posted by kevinwb View Post
Hey guys. I got my S5 less than a month ago and promptly rooted it. Today I've been having issues with the phone. It starts up but the screen doesn't turn on. I have to take out the battery and restart many times before it works and then any pressure put on the phone causes it to shut off. It hasn't been damaged physically in any way but I have to take it back to the store, so I believe I need to unroot to keep my warranty intact.

I've been using a S5 firmware I found on this forum and trying to unroot the phone, but I get this string of errors. What can I do? I'm really in over my head here. Any suggestions are welcome.

You are getting an authorization failure. That could be caused by several things.. flashing an earlier firmware version or borderline USB cables. Or a timeout from a busy PC perhaps.

Try this: Backup your phone if there are any user files that you don't want to loose.
Do a factory reset from the settings menu (this will erase user files!).
Wipe your cache from recovery mode (phone off, then volume up + home + power).
Then use Odin to flash a full stock firmware that is the same build as you currently have on the phone.

Odin is picky about cables. If you have ongoing issues, try a different cable + USB port
There are alternate flash settings as a last resort. But if have dificulty, it's likely a cable issue.

(more info in a similar thread)

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