How to change Firmware on samsung S21 Ultra/ SM-G998N - General Questions and Answers

Hello there...
I am using Samsung s21 Ultra, which is a Korean version, Model- SM-G998N (Skt) single sim. The fact is that I am living in Bangladesh. Due to the change of region maybe, some of the apps are not working properly. For example- the built-in weather app failed to locate my area. Furthermore, there is too much bloatware in the SM-G998N firmware that can not be deleted. I would like to change the firmware and install the one which is suitable for my region.
It will be very helpful if anyone suggests a suitable firmware for my region and how I can install this on my S21 Ultra?
Attached Files-
1. Current CSC/PDA version
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2. Service provider Software version

Hello there,
Though i could not find the exact solution to your problem but
this site will help you in solving your problem ig
here - https://www.androidsage.com/2017/07...specific-product-code-csc-and-country-region/

DorXbo said:
Hello there...
I am using Samsung s21 Ultra, which is a Korean version, Model- SM-G998N (Skt) single sim. The fact is that I am living in Bangladesh. Due to the change of region maybe, some of the apps are not working properly. For example- the built-in weather app failed to locate my area. Furthermore, there is too much bloatware in the SM-G998N firmware that can not be deleted. I would like to change the firmware and install the one which is suitable for my region.
It will be very helpful if anyone suggests a suitable firmware for my region and how I can install this on my S21 Ultra?
Attached Files-
1. Current CSC/PDA version
View attachment 5378135
2. Service provider Software versionView attachment 5378133
Click to expand...
Click to collapse
Hi Dear,
I have the same problem.
Did you find the way how to solve it?
I trying but in sot so easy.
Thanks

anyone find a solution?

Related

Samsung Gear S3 version types : China mainland , Europe , US , Korea , Asia Pacific

Need some help with these version types on Samsung Gear S3
Pls help me choose from these version types , As i am a native of INDIA and i used tol travel a lot to other foreign countries (UAE), which version will suite for me ??
What will be the difference among
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these version types ??
China
drhouse94 said:
Need some help with these version types on Samsung Gear S3
Pls help me choose from these version types , As i am a native of INDIA and i used tol travel a lot to other foreign countries (UAE), which version will suite for me ??
What will be the difference among
these version types ??
Click to expand...
Click to collapse
HI, im in china, I bougth the chinese version I thought i would work well here because im stuck here for a while (years), but I didnt get PAY and most of the things I cant get are the chinese apps and it seems that I cant get other functions available for other regions.
I want to ask if some body can get "baidu maps" "alipay" and other apps like those in other countries cos im thinking to change the Code to see if my Watch will work better ?????

Question Help me choose firmware update for my unlocked s21+

Hi, I have bought unlocked s21+ model number SM-G996U.
Here are the things that get me confused:
When is click software update, it show my phone up to date with software version G996USQU4AUF5 / G996UOYN4AUF5 / G996USQU4AUF5 security patch June 1, 2021.
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So i suspecting my ota update not working so ive done some search.
IMEI info shows my phone region is CCT.
But service provider software version shows SAOMC_SM_G996U_OYN_GCF_RR_0010 GCF/GCF/XXA
Which tells the phone CSC is XXA right?
But from website https://samfw.com, firmware for CSC: XXA is for model SM-G996U1.
So the question is, since my current software version from the CSC: CCT list in the website, if I update to latest firmware for CSC: CCT, will it relock my phone?
Or should I choose the firmware for CSC: XXA? Thanks in advance.
If it's running well... I wouldn't update anything.
Updates tend to break things.
It's the first apk I package disable.
Many apps including system ones I leave at their factory load versions particularly Gmail and Gmaps. Playstore will need updating eventually or it will fail.
Two months ago the forced Wearables update screwed up my Buds+ sound bad. That was a pain to fix... now Wearables updates are firewall blocked.
Be careful what you wish for

Question Differences between Flip3 versions

I have a Flip 3 version of the SM-F711B. What are the hardware differences with other versions of SM-F7110, SM-F711N, SM-F711U, SM-F711U1, SM-F711W?
Can I flash to my Flip3 version of the SM-F711B via Odin software designed for other versions? For example, for the SM-F711N version, software with Android 12 was released on December 15, 2021, can I flash it to my Flip3 version of the SM-F711B?
https://www.sammobile.com/samsung/galaxy-z-flip-3/firmware/
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As far as I know, you cannot flash OEM images across different hardware revisions.
MoonCocoon said:
As far as I know, you cannot flash OEM images across different hardware revisions.
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what happens if you do? eg; flash a snapdragon to another snapdragon variant?
Abaddon said:
what happens if you do? eg; flash a snapdragon to another snapdragon variant?
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Click to collapse
Nothing, the phone will reject the software because of a bootloader id mismatch
As far hw differences, the korean version has different antennae and modem software
Thank you for the information.
Hi, Just a question, can I install another region firmware?, e.g. SM-F711B PANAMA to SM-F711B Colombia?
andrescubillos said:
Hi, Just a question, can I install another region firmware?, e.g. SM-F711B PANAMA to SM-F711B Colombia?
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Yes, I installed the SERVIA servsion and mine came with the ZTO Brazil version.
I have change the region but CSC not changed then eSim still looked

Question S908B Variant - How to make samsung pay work?

Hello Friends, I recently bought a s22 Ultra in the Netherlands to bring with me back to Brazil and I found out, when setting the phone up, still in europe that Samsung Pay would not open, it says it is not compatible with my phone
I am thinking of flashing a firmware from a different region, but I do not know which one will work
Have you guys got any insight in this?
Download Samsung Galaxy S22 Ultra SM-S908B firmware
Download the latest Samsung firmware for Galaxy S22 Ultra with model code SM-S908B. Check out our free download or super fast premium options.
www.sammobile.com
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Thanks in advance
Ok, so I went ahead and decided to download multiple firmwares from S908B page on Samm website and after realizing they were all the same file (size was the same to the kilobit), I flashed only one to test, the BLE variant, which I believe is UK unbranded.
It did not work, Samsung pay was still unavailable. The thing that is funny, is that, my phone has a brazilian sim card, in brazil and it still register as EUX in the About Software section.
These multiple CSC firmwares are all registering as EUX in my phone, I dont know why.
Now I should Rephrase my initial question, which changed from is it safe to change firmware to:
How the hell can we get samsung pay on the S908B (Exynos) variant?

Any Custom Rom for Clone S23 Ultra?

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Hi there's Any Custom Rom for s23 ultra clone? I bought this one in a yard sale for 20 bucks hahaha. But the stock Firmware is so bad. I wanna Change it and use the device like retro emu. So...Anyone can help me?
manlgonzlz92 said:
View attachment 5906995View attachment 5906989Hi there's Any Custom Rom for s23 ultra clone? I bought this one in a yard sale for 20 bucks hahaha. But the stock Firmware is so bad. I wanna Change it and use the device like retro emu. So...Anyone can help me?.
Click to expand...
Click to collapse
There are Russian websites that have obscure firmware for cloned devices. Use a translator and post in those forums to get help finding a firmware that will work or can be made to work on your device. Cloned devices don't really have true support here at XDA, most users here focus on flagship and upper tier mid ranged devices.
There may also be a way for you to install a Linux or Ubuntu OS on the device to replace the stock firmware.
You need to see about opening the device to verify what motherboard and CPU series it actually has because you can't always trust that the installed software is showing the correct information.
@manlgonzlz92 hello OP, I have removed your first picture as it contains your device IMEI.
You can read further: https://security.stackexchange.com/...k-of-leaking-imei-imsi-numbers-over-a-network
I am also looking for a firmware that can be used with this model, as the device is relatively ok build but the original firmware is full of bugs

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