OFFICIAL STOCK Firmware-update (Odin) thread Samsung GALAXY S8+ SM-G955F

maik005

Senior Member
Feb 15, 2009
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I just helped someone flashing from DTM (ODX) to OXM.

After flashing he had DBT/DBT/DTM

Maybe tht is because he uses a SIM card from 1&1 which would be o2 germany. They don´t have a own CSC. so instead of switching to XEU the phone recognises the german SIM and switches to DBT automatically.

he only flashed all AP,BL,CP,CSC_OXM files from the DBT firmware he loaded via SamFirm.
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misiokicio

Senior Member
Jul 4, 2010
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Bathgate
Just flashed latest AQDG downloaded the DBT thru samfirm and installed with DBT home csc ( oxm) and phone is still nicely in Xeu/xeu/xeu this new oxm is great idea i think...bigger in size but no need to flash separate home csc. Thanks Henk as always for providing the latest firmwares :)
 

maxipvp

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Feb 13, 2009
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Stock German firmware for a KT unlocked G955N?

Hi, I was trying to replace current SM-G955N KTC Korea (KT Corporation) - G955NKSU1AQDG firmware and received a "Bootloader security check fail" error message.
Using Odin 3.12 with SM-G955F DBT Germany - G955FXXU1AQDG... BL, AP, CP and CSC are populated with the new firmware bits.
I know I must be doing something wrong and don't want to mess with my new S8+ so any help will be appreciated. :eek:
 

maik005

Senior Member
Feb 15, 2009
1,211
385
103
Hi, I was trying to replace current SM-G955N KTC Korea (KT Corporation) - G955NKSU1AQDG firmware and received a "Bootloader security check fail" error message.
Using Odin 3.12 with SM-G955F DBT Germany - G955FXXU1AQDG... BL, AP, CP and CSC are populated with the new firmware bits.
I know I must be doing something wrong and don't want to mess with my new S8+ so any help will be appreciated. :eek:

Looks like the Bootloader might be locked - or - it is not possible to flash a SM-G955F firmware on a SM-G955N device!

or even both....

---------- Post added at 21:17 ---------- Previous post was at 21:15 ----------

Got update for my tmobile s8+ 



:fingers-crossed:
This thread is about the SM-G955F Firmware.
 

maxipvp

Member
Feb 13, 2009
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Looks like the Bootloader might be locked - or - it is not possible to flash a SM-G955F firmware on a SM-G955N device!

or even both....

---------- Post added at 21:17 ---------- Previous post was at 21:15 ----------

Locked Bootloader was my first thought... thanks for your response.
 

clubtech

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Jun 26, 2007
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Looks like the Bootloader might be locked - or - it is not possible to flash a SM-G955F firmware on a SM-G955N device!

or even both....

---------- Post added at 21:17 ---------- Previous post was at 21:15 ----------



This thread is about the SM-G955F Firmware.
No, it's because he is trying to flash a SM-G955F firmware on a SM-G955N model which will never work.
 

galarond

Senior Member
Dec 27, 2010
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Lima
Its posible to flash a DD firmware over the latest DG firmware or thats considered a some kind of downgrade and bloqued by samsung?
 
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quattro.80

New member
May 7, 2017
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Single SIM Firmware on Dual SIM Hardware - any experience?

Hi all,
I just purchased the S8+ Duos from Singapure (SM-G955FD). Is it possible to flash the Single Sim Firmware to the Dual Sim Phone without any restrictions? I would like to replace the Singapur Firmware with a European one (AUT).
That's what I have today (looked-up with Phone info): Model: SM-G955F (Samsung Smart Switch sais SM-G955FD), Active CSC-Code MM1, CSC Country Singapore / SG, Product Code SM-G955FZKDMM1

Has already someone flashed a Dual Sim S8 with the Single Sim Firmware? Any expierence to share?

Thanks in advance!
 

androidrouen

Senior Member
Jan 27, 2014
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★ ★ ★ ★ ★ ★
Hi, I was trying to replace current SM-G955N KTC Korea (KT Corporation) - G955NKSU1AQDG firmware and received a "Bootloader security check fail" error message.
Using Odin 3.12 with SM-G955F DBT Germany - G955FXXU1AQDG... BL, AP, CP and CSC are populated with the new firmware bits.
I know I must be doing something wrong and don't want to mess with my new S8+ so any help will be appreciated. :eek:
OEM unlocked was On in developer option ?