Can I flash a firmware from a different region? - Android Q&A, Help & Troubleshooting

I want to know if I can flash a firmware on my phone using a firmware from a different region with a different Android version.
I want to upgrade the Android version of my phone from Android 7.0 Nougat to Android 8.1.0 Oreo or possibly Android 9 Pie, but the available firmware with the same PDA as my phone is only Android 7.0 Nougat.
My phone's PDA is J701FXXU4ARB3.

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Hi ☺
I have a Samsung Galaxy Note 4 (N910c). I want to install android 6.0.1 on my device which is not available in my country.
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Flashing another Region's firmware on Samsung J7 Pro (SM-J730GM)

Hello All,
Please I want to know the consequences of flashing the rom of another region on your Samsung device. Let me explain why I ask this
So recently I upgraded my Samsung j7 Pro (J730GM) to Android 8.1 Oreo and that update changed the binary version of my device to 5 (i.e. J730GMDXU5) so I tried downgrading the phone back to 7.0 but that did not work because Samsung has not released an Android 7.0 Nougat firmware with binary version 5 so downgrading the normal way was quite impossible.
Now I recently found out that Samsung has released an Android 7.0 Nougat firmware with binary version 5 but the region/country it was released for is Mexico while my phone's region is Thailand.
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OS downgrade?

Hello! My F700K is currently running android 8.0.0. The other day I saw that i can download the nougat version firmware from the lg website and ive been wondering if i can downgrade the OS using the LGUP program? Or does the oreo version have an antirollback feature that can brick my device if i do it? Thanks!
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Samsung J8 touch screen unresponsive/not working after Oreo 8.0.0/8.1.0 to 9.0 Pie.

I don't know if this is related, off-topic or not. But my brother had this problem after he updated to 9.0 pie update on a samsung j8 phone.
Here is my build number and baseband.
Baseband: J810YDXU2BSD2. Build Number: J810YDXU2BSD3
Country: Philippines, XTC.
I would like to know what firmware should I download to downgrade using flash odin.
:crying:
Hi , I think it will not be easy to downgrade from Android 9 to 8 but you can try with this one :
https://updato.com/firmware-archive-select-model/?record=FF24FD38563611E99F15FA163EE8F90B
Good Luck

Is downgrade Pie => Nougat possible?

Hi, I would like to downgrade my Samsung XCover 4 (G390F) from Android 9 to 7. Is it possible? Simply flashing the stock Nougat using Odin fails because of different bootloader version.

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