Downgrade oreo current to oreo initial build - Samsung Galaxy S8 Questions and Answers

Greeting, it is possible to downgrade from the current oreo build on G950W (snapdragon) to the initial oreo release for s8 ? (when to keep same carrier firmware)

ayeros said:
Greeting, it is possible to downgrade from the current oreo build on G950W (snapdragon) to the initial oreo release for s8 ? (when to keep same carrier firmware)
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Only that of equal or greater bootloader revision so probably not

Related

[Q] does G900I 6.0.1 marshmallow allow downgrade?

Would it be possible to downgrade from marshmallow to kitkat?
Condition
-No custom firmware
-Current marshmallow is official and planning to go back to kitkat official stock firmware
-knox is still 0x0 after downgrade. Is this possible?
Device model
S5 g900i
Android 6.0.1 marshmallow
Security patch level 1 June 2016
Use odin to flash the KitKat firmware. That'd probably work for you.
But be careful selecting the right firmware for your model!

Will Samsung release Oreo firmware for S8 (950u1 - XAA)?

Any one know if they will be releasing unlocked oreo firmware for 950u1 - XAA? Or will I have to go back to carrier locked firmwares for Oreo 950u?

Downgrade to Noguat from Officail Oreo fido canadaina carier s8 plus

If i downgrade from oreo to noguat am i going to trap knox ? and also is it even possible to downgrade through odin after having official oreo firmware in my s8 plus ?
Thanks

Downgrade from Nougat to Marshmallow (SM-G570Y)

Hi,
I am trying to downgrade my Galaxy J5 Prime (SM-G570Y) from Android 7.0, back to Android 6.0.1 (for some reasons). I have selected the 4 files (BL, AP, CP, CSC) in Odin for flashing. I have tried several methods to downgrade, but Odin keeps saying "FAIL!". Is there a solution for this?
Current Android 7.0 (Nougat) version on my phone:
G570YDXU2BRC1 (with Android Security Patch Level of 1 March 2018)
Planning to downgrade to Android 6.0.1 (Marshmallow) of version:
G570YDXU1AQG1 (with Android Security Patch Level of 1 July 2017)
CSC used on my phone:
Philippines (Open Line) - XTC
Thank you in advance!
NoorSyafiq2014XDA said:
Hi,
I am trying to downgrade my Galaxy J5 Prime (SM-G570Y) from Android 7.0, back to Android 6.0.1 (for some reasons). I have selected the 4 files (BL, AP, CP, CSC) in Odin for flashing. I have tried several methods to downgrade, but Odin keeps saying "FAIL!". Is there a solution for this?
Current Android 7.0 (Nougat) version on my phone:
G570YDXU2BRC1 (with Android Security Patch Level of 1 March 2018)
Planning to downgrade to Android 6.0.1 (Marshmallow) of version:
G570YDXU1AQG1 (with Android Security Patch Level of 1 July 2017)
CSC used on my phone:
Philippines (Open Line) - XTC
Thank you in advance! [/QUOTE)
I have this same problem to i want to downgrade because i want to fix my baseband and IMEI.
But looking and searching the sites and other forums i still don't find that is possible yet as there is not U2 android 6 available. Since the android 7 have security level U2 and can't go back to U1 (G570YDXU2BRC1 android 7 & G570YDXU1AQG1 android 6.0.1)
I guess we just have to root the phone and try other methods to fix IMEI and baseband.
Regards
Marktus
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marktus said:
NoorSyafiq2014XDA said:
Hi,
I am trying to downgrade my Galaxy J5 Prime (SM-G570Y) from Android 7.0, back to Android 6.0.1 (for some reasons). I have selected the 4 files (BL, AP, CP, CSC) in Odin for flashing. I have tried several methods to downgrade, but Odin keeps saying "FAIL!". Is there a solution for this?
Current Android 7.0 (Nougat) version on my phone:
G570YDXU2BRC1 (with Android Security Patch Level of 1 March 2018)
Planning to downgrade to Android 6.0.1 (Marshmallow) of version:
G570YDXU1AQG1 (with Android Security Patch Level of 1 July 2017)
CSC used on my phone:
Philippines (Open Line) - XTC
Thank you in advance! [/QUOTE)
I have this same problem to i want to downgrade because i want to fix my baseband and IMEI.
But looking and searching the sites and other forums i still don't find that is possible yet as there is not U2 android 6 available. Since the android 7 have security level U2 and can't go back to U1 (G570YDXU2BRC1 android 7 & G570YDXU1AQG1 android 6.0.1)
I guess we just have to root the phone and try other methods to fix IMEI and baseband.
Regards
Marktus
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To downgrade from Oreo to MM or NN Just flash the combination firmware using odin after that you flash Marshmallow bro
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Mscreams said:
marktus said:
To downgrade from Oreo to MM or NN Just flash the combination firmware using odin after that you flash Marshmallow bro
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Click to collapse
No not on that model as the bootloader cant be downgraded.
I don't think he can downgrade at all
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garylawwd said:
Mscreams said:
No not on that model as the bootloader cant be downgraded.
I don't think he can downgrade at all
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I did it by that procedure
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Mscreams said:
I did it by that procedure
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Not on g570y thats a different device to j5 2015
garylawwd said:
Not on g570y thats a different device to j5 2015
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Click to collapse
Maybe it's different I've got g570F

S6 (Korean) latest Android version and security patch

For a Korean variant S6 model, SM-G920K/L/S, can I confirm what’s the max android version and security patch version it can be updated to?
Checked on Sammobile, the available stock firmware would be android 7.0 and security patch of 30th July 2018. Is this true? Just want to confirm that it can’t be updated beyond - just for stock firmwares.
Cheers!

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