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Original topic:

Firmware/Security Patch not updating

(Topic created on: 05-03-2022 08:56 PM)
solucky88
First Poster
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Galaxy S21 Series

I just bought a S21 Ultra but I  cannot update the software. It is still on the 1 May 2021 security patch. 

The CSC is as follows: 

Service provider software version
SAOMC_SM-G998B_OXM_BTU_RR_0011
BTU/BTU,BTU/EUX/TMH

How can this be resolved? Do I need to return the phone?

Thanks in advance. 

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3 REPLIES 3
Pugs1957
Samsung Maker ★
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Galaxy S21 Series
Hi, it appears that CSC code (TMH) is for Hungary so it will not update over the air. Smart Switch for PC would allow you to do this manually.
RETIRED
solucky88
First Poster
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Galaxy S21 Series
Thanks for the reply. I don't have a PC unfortunately so might return this phone and get a replacement.
Members_dsMOyEs
Apprentice
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Galaxy S21 Series

Hello everybody!

 

I'm in the same situation right now, same device, same CSC code and no automatic updates. I installed smart switch on my computer, but no new updates are detected when I plug in my phone. 

Could you maybe explain, how I can manually update the firmware using smart switch, or link an accurate tutorial doing so? Your help is highly appreciated! 

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