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G900M - Problem with OTA update

OP mrhizzo

13th May 2014, 02:10 PM   |  #1  
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Hi.

I don't know if someone can help me, but I really don't know what to do with this problem.

I bought one G900M (version from Brazil) on the release date and after a few weeks I install a custom rom and the TWRP recovery.
The problem is: I tried to go back to the stock ROM, but I still have the recovery with the CUSTOM "mark".

I tried to re install many times, do a wipe/format from the recovery, with no success.
I always receive the message when I try update the phone by OTA what say "The operating system on your device has been modified in an unauthorized way. Try downloading...

I appreciate any help.
13th May 2014, 07:19 PM   |  #2  
dynospectrum's Avatar
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Quote:
Originally Posted by mrhizzo

Hi.

I don't know if someone can help me, but I really don't know what to do with this problem.

I bought one G900M (version from Brazil) on the release date and after a few weeks I install a custom rom and the TWRP recovery.
The problem is: I tried to go back to the stock ROM, but I still have the recovery with the CUSTOM "mark".

I tried to re install many times, do a wipe/format from the recovery, with no success.
I always receive the message when I try update the phone by OTA what say "The operating system on your device has been modified in an unauthorized way. Try downloading...

I appreciate any help.

You tripped Knox when you rooted. There's no way to undo this.
13th May 2014, 07:24 PM   |  #3  
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Quote:
Originally Posted by dynospectrum

You tripped Knox when you rooted. There's no way to undo this.

But I'm not talking about Knox. I'm talking about the OTA update.
I reinstall the original firmware, stock version. Should work, no? Or Samsung changed the things again?
5th September 2014, 01:58 AM   |  #4  
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Im with a similar problem... root my device now OTA dont work... i think maybe someone has a flashable original firmware and you patch the same way you root your device.... Other option is ODIN restore to default :/ wich nobody want that
8th September 2014, 01:06 PM   |  #5  
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Its true
You tripped Knox when you rooted. There's no way to undo this.
If you want to update Just download the stock firmware ( samobile ) and flash with odin
7th December 2014, 09:11 PM   |  #6  
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Not true. My knox is still 0x0, I have root, but i have the same message from OTA.

The ART is the problem.
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