Samsung s20+ change firmware from SM G986U1 to SM G986N (korean) - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

I want to flash a different region firmware (in this case korean) on my device, an s20 plus unlocked (with csc xaa). The reason is that I wish to unlock 5g band n78 that the us firmware of my device does not support. I know that I cannot flash a european exynos firmware, but the korean model SM g986n has the same soc (snapdragon 865) and is single sim. In another thread (https://forum.xda-developers.com/t/flashing-from-sm-g986n-to-sm-g986u1.4072579/) the owner of a Korean s20 plus attempted to do the opposite and supposedly failed, because its korean model lacked mmwave 5g antennas that the american model supports (albeit probably calibration on the chipset is different). So thit is my question: is the reverse operation possible? Do I risk to brick the phone because of hardware limitations? Do I have to unlock the bootloader to flash the korean firmware or samsung frp tool could do the trick? I am open to suggestions here, thank you in advance.

Related

S10+ Korean version 975N much cheaper, any thoughts?

Hi guys,
Here is my dilemma: I live in Vietnam and I can get the Korean S10+ 512GB for about $770 (vs. $990 for the international version).
The phone is SKT branded, but I guess there will be a way to flash the unbranded Korea firmware. Can anyone confirm it's possible?
Also, the Korean version can only take 1 SIM but if it is like the previous Galaxy S, the hardware should be there, it's purely a firmware limitation. How hard is it to install the international version firmware (F/DS) on the Korean version? If possible, will I still get OTA? Will I need to unlock the bootloader?
Thanks for your help!
Alex
nirm said:
Hi guys,
Here is my dilemma: I live in Vietnam and I can get the Korean S10+ 512GB for about $770 (vs. $990 for the international version).
The phone is SKT branded, but I guess there will be a way to flash the unbranded Korea firmware. Can anyone confirm it's possible?
Also, the Korean version can only take 1 SIM but if it is like the previous Galaxy S, the hardware should be there, it's purely a firmware limitation. How hard is it to install the international version firmware (F/DS) on the Korean version? If possible, will I still get OTA? Will I need to unlock the bootloader?
Thanks for your help!
Alex
Click to expand...
Click to collapse
I don't know that you could install the international firmware on the Korean device. I know the Canadian models (W) can flash the US (U/U1) versions. Id just get some confirmation before trying it as to not brick the device.

S20+ CSC Change

Hello Everyone,
I have the SM-G985F/DS in Canada. The current CSC is XSP/XSP,XSP/XSP.
This phone is the international variant. Can someone please guide me on how I can change the CSC? I am a total noob. I would like Samsung Pay/ VoLTE to work. Preferably Fido CSC or Unlocked Canada, some bands aren't working properly.
If this isn't possible will I get updates for my phone?
This has been a big headache.
The phone is Exynos and I'm in a Snapdragon country.
Thanks
ShawnShanked said:
Hello Everyone,
I have the SM-G985F/DS in Canada. The current CSC is XSP/XSP,XSP/XSP.
This phone is the international variant. Can someone please guide me on how I can change the CSC? I am a total noob. I would like Samsung Pay/ VoLTE to work. Preferably Fido CSC or Unlocked Canada, some bands aren't working properly.
If this isn't possible will I get updates for my phone?
This has been a big headache.
The phone is Exynos and I'm in a Snapdragon country.
Thanks
Click to expand...
Click to collapse
Since you're using an Exynos phone in a country where they officially sell the Snapdragon variant, you won't be able to flash the Canadian CSCs since they're only available for the Canadian variant.
VoLTE should work after you insert your SIM and reboot the phone, I've seen multiple reports of VoLTE no longer requiring the correct CSC to function.
Messing with band support is almost impossible on Exynos variants and I believe Samsung Pay requires the correct CSC to work so you're out of luck there.
All this aside, you will still get OTA updates based on when they're released for the XSP CSC.

Changing US TMO S20 5G to Spain Unbranded Firmware

I have an unlocked US TMO S20 5G that I would like to reset and use in Spain with my Spanish SIM card, but not with all the US TMO firmware etc.
Can I flash a Spanish unbranded/unlocked firmware or should I flash the unbranded US firmware?
Assuming I can flash the Spanish firmware, what are the procedures?
Thanks!
Spanish Firmware isn't compatible with Snapdragon devices, it's designed to operate alongside Exynos Chipsets. You may want to flash the US Unbranded Firmware SM-G981U1 and go from there.

Enable eSIM feature on Samsung S20+ SM-G986W

Hello Experts,
I have a Samsung Galaxy S20+ 5G purchased in Canada and not associated with any service provider. I am planning to use it in India and I have 2 SIM's in India. Samsung Canada Firmware does not have eSIM feature and there is no SIM Card Manager function in settings. Can I flash any other region firmware and have the eSIM feature enabled ?
The question should b e, does the snapdragon variant support e-sim, cos am stuck with a S20 +5g purchased in usa but no e-sim
Galaxy devices in India are typically Exynos variants which offer eSIM functionality. Flashing different firmware on a Galaxy S Series Snapdragon variant won't enable eSIM. None of Galaxy's Snapdragon variants except The Fold are eSIM capable.
phrozenwire said:
Hello Experts,
I have a Samsung Galaxy S20+ 5G purchased in Canada and not associated with any service provider. I am planning to use it in India and I have 2 SIM's in India. Samsung Canada Firmware does not have eSIM feature and there is no SIM Card Manager function in settings. Can I flash any other region firmware and have the eSIM feature enabled ?
Click to expand...
Click to collapse
Hi I have a same model Canadian S20+ 5G , G986W , I'm from india can u plssss help to enable LTE+ , it's shows only LTE , how to enable LTE+ ???
I would like to know how to enable esim in
СМ-G986W as well. Maybe by changing region or something else ​
Hi guys, I finally got rid of my G986W. I've converted it to G986U1:
Firmware: https://samfw.com/firmware/SM-G986U1/TMB/G986U1UES3GWA2
SAMFW Odin Flash: https://samfw.com/blog/samfw-frp-tool-1-0-remove-samsung-frp-one-click
Just flash firmware with included Odin Flash (Add all files except HOME_CSC and don't use USERDATA.
I've flashed and my S20+ reborn as a true phone with eSim functionality and etc.
0x0null said:
The question should b e, does the snapdragon variant support e-sim, cos am stuck with a S20 +5g purchased in usa but no e-sim
Click to expand...
Click to collapse
It does, bit esim is disabled in Canada, by soft. Instal U1(xaa) instead of W soft, esim will be enabled.
Have u tried installing a Esim? Is it working fully?
MGoris said:
Hi guys, I finally got rid of my G986W. I've converted it to G986U1:
Firmware: https://samfw.com/firmware/SM-G986U1/TMB/G986U1UES3GWA2
SAMFW Odin Flash: https://samfw.com/blog/samfw-frp-tool-1-0-remove-samsung-frp-one-click
Just flash firmware with included Odin Flash (Add all files except HOME_CSC and don't use USERDATA.
I've flashed and my S20+ reborn as a true phone with eSim functionality and etc.
Click to expand...
Click to collapse
Sureshtuty said:
Have u tried installing a Esim? Is it working fully?
Click to expand...
Click to collapse
Works without any problems, especially since I'm in Europe.
0x0null said:
The question should b e, does the snapdragon variant support e-sim, cos am stuck with a S20 +5g purchased in usa but no e-sim
Click to expand...
Click to collapse
all s20+ 5g should support esim. (esim is inegrated to a snapdragon chip) BUT some of them are dissabled by software. but such a models like 986U or 986V, for example, were lock by operator and you could not install a software from U1, that includes esim support. i might be wrong. i installed U1 soft to a 986W model (that was without esim support. Now, esim works perfect. s20+ updates online. samsung pay works correct, knox works as well)
RR0077 said:
all s20+ 5g should support esim. (esim is inegrated to a snapdragon chip) BUT some of them are dissabled by software. but such a models like 986U or 986V, for example, were lock by operator and you could not install a software from U1, that includes esim support. i might be wrong. i installed U1 soft to a 986W model (that was without esim support. Now, esim works perfect. s20+ updates online. samsung pay works correct, knox works as well)
Click to expand...
Click to collapse
I have Lost 2nd Physical sim option after update to OneUI 5.1, on my 988B, before the update i was using both physical sims ok. Now only 1 physical sim and 1 eSim option is there. Please help
I am trying to flash a U1 firmware. I keep getting Fail (Auth) on Odin. I'm using a patched ver 3.14.1 of Odin.
I've selected USB debugging on my phone. What am I missing?
Can anyone help?

Flashing foreign firmware to an international device

Hi,
In order to buy an international S20 ultra 5g and use it in europe (france), I am wondering if flashing the device with a french firmaware could allow me to use it without issues, above all use samsung pay (I'm becoming blind and using card terminal in shops is sometime really tricky) ?
Look at sammobile and type in the serie number. Firmware will be there. If you're lucky your provider is there too. I don't think exynos versions of the software will work on Snapdragon. Good luck
if your chipset is qualcomm you cant use exynos firmware and otherwise

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