Develop Bugs

note 10+ 5G SM-N976N

Hi,
c

You have to use the same model to flash in Odin. 976B is not 976N.
You can flash the KOO firmware for 976N which is the unbranded version (I bought it myself at a Samsung shop in Seoul).

I tried to flash with 976B and got errors. I flashed with KOO 976N but srill i have brand of KT when i start the phone also some settings of KT.
No idea why KT still stays after flashing

minipac13 said:
I tried to flash with 976B and got errors. I flashed with KOO 976N but srill i have brand of KT when i start the phone also some settings of KT.
No idea why KT still stays after flashing
Click to expand...
Click to collapse
Right, because 976B is not the phone you have. You can't use a different model firmware.
Sounds like you need to change the CSC to KOO after boot up.

I used CSC for KOO byr still no lick
Let me know which CSC maybe i am doing something wrong

minipac13 said:
I used CSC for KOO byr still no lick
Let me know which CSC maybe i am doing something wrong
Click to expand...
Click to collapse
You said you flashed KOO firmware. That is not the same thing as switching CSC after booting up.
There is a phone menu to change the CSC. You need to do this, which will change the CSC setting on the EFS partition which is what you need to do.

Woow thank you for that. Now this is new and i didn't know it. Can you help me and let me know where to change CSC.
Thanks

*#272*IMEI# not working... i don't want to root also

minipac13 said:
*#272*IMEI# not working... i don't want to root also
Click to expand...
Click to collapse
you can try this:
https://forum.xda-developers.com/ga...de-how-to-change-s9-s9-csc-model-csc-t3870836

Kalm_Traveler said:
you can try this:
https://forum.xda-developers.com/ga...de-how-to-change-s9-s9-csc-model-csc-t3870836
Click to expand...
Click to collapse
no use and help from link since this was for combination firmware.
did you change ur CSC ? which method?

minipac13 said:
no use and help from link since this was for combination firmware.
did you change ur CSC ? which method?
Click to expand...
Click to collapse
The SM-N976N has 4 CSC options built-in. KOO is the unbranded Samsung code. There are 3 for the 3 major carriers in Korea: SK Telecom, kt Olleh, and LG U+
No I did not change my CSC because I bought my phone in a Samsung store in Seoul.

I have KT one , when i switch one says 5G and under screen KT.
also in setting. I am trying to find the way to change the CSC from KTC to KOO

Active KTC

Edit

Ohhh no way that bad
For me only Samsung pay ,5G, start up the phone, phone can't recognize my number rather than that everything else is perfect.
I am trying to find way to change CSC to KOO, hopefully will work

minipac13 said:
Ohhh no way that bad
For me only Samsung pay ,5G, start up the phone, phone can't recognize my number rather than that everything else is perfect.
I am trying to find way to change CSC to KOO, hopefully will work
Click to expand...
Click to collapse
Do you mean your N10+ doesn't connect to the 5G network even if it's present and working in your zone?

Yes i don't see 5G at all even covered in my country. Always LTE+

Weird.. where are you from?
Our model is 5G, I suppose SM-976B only is suitable for 5G networks over asian countries, hope someone could tell me I'm wrong...

vysus said:
Weird.. where are you from?
Our model is 5G, I suppose SM-976B only is suitable for 5G networks over asian countries, hope someone could tell me I'm wrong...
Click to expand...
Click to collapse
I don't know the specs of the B variant, but my N variant 5g worked in Korea just fine. Haven't been able to test it in the USA yet because T-Mobile doesn't have any 5g towers in my state yet.

In my country, UAE according to bands only N976N working since the are on same 5G band.
N976B isn't working with UAE network (5G). I bought and sold N976B.
Also now N976N is not working coz of carrier, KT from Korea.

How to check Supported LTE bands

I have the Canadian version of S20. How do I check the supporting LTE bands? Carrier info seems inaccurate.
What's the service code?

I don't know how to get all single band support but i know how to get Carrier Aggregation combinations listed from Samsung devices. I guess you have Qualcomm edition in Canada so here is instruction to get log file: https://mt-tech.fi/en/how-to-get-4g...ons-from-your-android-phone/#Qualcomm_devices . If you like, please share to me (https://cacombos.com/contribute) so i can add your model supported Carrier Aggregation combinations to my site.

sundoggy said:
I have the Canadian version of S20. How do I check the supporting LTE bands? Carrier info seems inaccurate.
What's the service code?
Click to expand...
Click to collapse
Easy, use Samsung Band Selector application

Hi Olkitu,
I had a S20 Ultra SM-G9880 from Hong Kong. I used the phone in Austria for about 1 Month. Everything worked fine in Austria, but I had the problem with CA with my provider.
My phone did not have all the combinations of CA from my provider.
Because of that I sold my phone. Can you edit the CA combinations of a Sm-g9880?
If yes I would by another time phone, because it is perfect for me.
Thanks and regards

astaroth said:
Hi Olkitu,
I had a S20 Ultra SM-G9880 from Hong Kong. I used the phone in Austria for about 1 Month. Everything worked fine in Austria, but I had the problem with CA with my provider.
My phone did not have all the combinations of CA from my provider.
Because of that I sold my phone. Can you edit the CA combinations of a Sm-g9880?
If yes I would by another time phone, because it is perfect for me.
Thanks and regards
Click to expand...
Click to collapse
I don't know how to edit carrier aggregation combinations of Samsung but we can get all supported supported combinations out. If you like just provide BandInfoXXX file from your device i can list then supported combinations of your phone? Here is instruction: https://mt-tech.fi/en/how-to-get-4g...ons-from-your-android-phone/#Qualcomm_devices
You can send then log file to https://cacombos.com/contribute . This help us to see what carrier aggregation combinations phones support.

astaroth said:
Hi Olkitu,
I had a S20 Ultra SM-G9880 from Hong Kong. I used the phone in Austria for about 1 Month. Everything worked fine in Austria, but I had the problem with CA with my provider.
My phone did not have all the combinations of CA from my provider.
Because of that I sold my phone. Can you edit the CA combinations of a Sm-g9880?
If yes I would by another time phone, because it is perfect for me.
Thanks and regards
Click to expand...
Click to collapse
I think if you changed your csc to tiwan "BRI " it should solve your problems, because Hong kong firmware "TGI" doesn't support CA but Tiwan firmware does so buy the device again but change the Firmware to BRI tiwan

hoss_n2 said:
I think if you changed your csc to tiwan "BRI " it should solve your problems, because Hong kong firmware "TGI" doesn't support CA but Tiwan firmware does so buy the device again but change the Firmware to BRI tiwan
Click to expand...
Click to collapse
Hi,
Thats true and not
I changed with the program samkey or so my csc.
After that i had the 5g option, caller ID and CA.
But the problem was the combination of CA. It did not paired Band 20 and Band 3. Only Band 20 and Band 7 or Band 7 and 3.
I described it in my other Postings.
I hope there is someone who can edit the CA combinations.

astaroth said:
Hi,
Thats true and not
I changed with the program samkey or so my csc.
After that i had the 5g option, caller ID and CA.
But the problem was the combination of CA. It did not paired Band 20 and Band 3. Only Band 20 and Band 7 or Band 7 and 3.
I described it in my other Postings.
I hope there is someone who can edit the CA combinations.
Click to expand...
Click to collapse
I you still have Caller ID then it is still hongkong firmware , tiwan version dont have caller ID so I think you should have clean flash of the tiwan firmware after changing the csc

hoss_n2 said:
I you still have Caller ID then it is still hongkong firmware , tiwan version dont have caller ID so I think you should have clean flash of the tiwan firmware after changing the csc
Click to expand...
Click to collapse
Hi hoss_n2,
Are you sure that it will work?
Then i will order another sm-g9880.
Can you read my posts in this thread?
There i write everything detailed:
https://forum.xda-developers.com/galaxy-s20/help/modify-csc-to-change-carrier-t4096035
Thanks for your help.
Regards

astaroth said:
Hi hoss_n2,
Are you sure that it will work?
Then i will order another sm-g9880.
Can you read my posts in this thread?
There i write everything detailed:
https://forum.xda-developers.com/galaxy-s20/help/modify-csc-to-change-carrier-t4096035
Thanks for your help.
Regards
Click to expand...
Click to collapse
I have read your linked thread before , but I want to ask one last question, how do you test Carrier aggregation from your phone and how you test the active bands for Carrier aggregation my device is a Tiwan version and it is doing CA between band 3 & Band 8

In the menu *#0011# there you can see how is the CA status and with which Band it is paired.
I tried my sim with an exynos version and could see that band 20 is paired with the other bands.
With the sm-g9880 band 20 was not paired with other bands while CA. Only band 7 and band 3 were paired.

astaroth said:
Hi hoss_n2,
Are you sure that it will work?
Then i will order another sm-g9880.
Can you read my posts in this thread?
There i write everything detailed:
https://forum.xda-developers.com/galaxy-s20/help/modify-csc-to-change-carrier-t4096035
Thanks for your help.
Regards
Click to expand...
Click to collapse
I'm currently on Tiwan firmware with BRI csc and my device is doing Carrier aggregation on Band 8 & band 3
attached picture

My device also paired band 3 and band 7.
The problem was the pairing with Band 20 because band 20 ist for the long distance.
There are also people in Australia who also have the problem.

@hoss_n2 what country and region were you successfully using CA at? I read that you changed from TGY to BRI.
I'm currently on T-Mobile USA and wondering if changing CSC to BRI will enable CA for me.

hoss_n2 said:
I think if you changed your csc to tiwan "BRI " it should solve your problems, because Hong kong firmware "TGI" doesn't support CA but Tiwan firmware does so buy the device again but change the Firmware to BRI tiwan
Click to expand...
Click to collapse
astaroth said:
Hi,
Thats true and not
I changed with the program samkey or so my csc.
After that i had the 5g option, caller ID and CA.
But the problem was the combination of CA. It did not paired Band 20 and Band 3. Only Band 20 and Band 7 or Band 7 and 3.
I described it in my other Postings.
I hope there is someone who can edit the CA combinations.
Click to expand...
Click to collapse
Did anyone confirm if changing csc tgy to bri changed the carrier aggregation combo files ? I don't think it does. Only way to check would be to examine the CA combos for bri and tgy to compare. No point in changing csc or flashing it they are the same.

eSim on Galaxy S20 5G, SM - G 9810.

I recently got the Galaxy S20 5G, SM - G 9810.
The menu item "eSim" is missing in the SIM card management for the mobile phone.
Thought all S20 can also eSim?
Does anyone have any idea how to get the menu displayed?
Maybe with a different firmware? There is firmware from China on it.
Wanted to run an eSim, SD card and another real Sim in the cell phone.

Zafira30 said:
I recently got the Galaxy S20 5G, SM - G 9810.
The menu item "eSim" is missing in the SIM card management for the mobile phone.
Thought all S20 can also eSim?
Does anyone have any idea how to get the menu displayed?
Maybe with a different firmware? There is firmware from China on it.
Wanted to run an eSim, SD card and another real Sim in the cell phone.
Click to expand...
Click to collapse
You might have the Hong-Kong or Taiwan model which seems to only support physical sim.

west2cool said:
You might have the Hong-Kong or Taiwan model which seems to only support physical sim.
Click to expand...
Click to collapse
There is Chinese firmware on it. maybe you can change it to another firmware. All S20 should have the eSim. Just locked by the software.

Zafira30 said:
There is Chinese firmware on it. maybe you can change it to another firmware. All S20 should have the eSim. Just locked by the software.
Click to expand...
Click to collapse
Go to Setting-About Phone-Software Information and check what it says under Service Provider SW Ver.
TGY - Hong-Kong
BRI - Taiwan
CHC- China

west2cool said:
You might have the Hong-Kong or Taiwan model which seems to only support physical sim.
Click to expand...
Click to collapse
west2cool said:
Go to Setting-About Phone-Software Information and check what it says under Service Provider SW Ver.
TGY - Hong-Kong
BRI - Taiwan
CHC- China
Click to expand...
Click to collapse
The G9810ZCU1ATCT is on the phone.
The G9810ZCU1ATCT is on the phone. Provider software version BRI. If I put another firmware on it, should the eSim work?

Zafira30 said:
The G9810ZCU1ATCT is on the phone.
Click to expand...
Click to collapse
Thats what you looking for.

west2cool said:
Thats what you looking for.
Click to expand...
Click to collapse
The G9810ZCU1ATCT is on the phone.
The G9810ZCU1ATCT is on the phone.
Provider software version BRI.
If I put another firmware on it, should the eSim work?

Zafira30 said:
The G9810ZCU1ATCT is on the phone.
The G9810ZCU1ATCT is on the phone.
Provider software version BRI.
If I put another firmware on it, should the eSim work?
Click to expand...
Click to collapse
I know esim doesn't work on BRI or TGY .

west2cool said:
I know esim doesn't work on BRI or TGY .
Click to expand...
Click to collapse
https://www.sammobile.com/samsung/galaxy-s20/firmware/#SM-G9810

Zafira30 said:
https://www.sammobile.com/samsung/galaxy-s20/firmware/#SM-G9810
Click to expand...
Click to collapse
What you trying to show or say.

https://www.sammobile.com/samsung/g...09tDdu9HNJcp6dBdeNXVf2XpskuEbaUw130w#SM-G9810
These firmware versions are available for the mobile phone.
Which should go?

Zafira30 said:
I recently got the Galaxy S20 5G, SM - G 9810.
The menu item "eSim" is missing in the SIM card management for the mobile phone.
Thought all S20 can also eSim?
Does anyone have any idea how to get the menu displayed?
Maybe with a different firmware? There is firmware from China on it.
Wanted to run an eSim, SD card and another real Sim in the cell phone.
Click to expand...
Click to collapse
You have the S20 Hong Kong Variant. eSim isn't available on your device and changing firmware from TGY, which is the CSC on your device, to a different CSC usually creates more problems than it solves. The Forum is littered with users who have numerous issues after changing firmware. Firmware is CSC specific so altering this compatibility can have adverse effects. Carrier Aggeration, Wifi Calling, Samsung Pay, Samsung Health, Secure Folder as well as your Warranty may be at risk.
Another option if you want to have Dual SIM and SD Card is adding an adapter. I wouldn't consider that since it's a pretty funky setup.
https://www.simore.com/en/dual-sim-adapter-galaxy-s20-ultra-samsung-speed-zx-twin.html
On my Galaxy S8 I shaved a SIM Card, fixed it to the back of my SD Card to facilitate the setup you're hoping to achieve however Samsung squashed that option on S9's and likely S10's and S20's. I'm curious why you feel eSim is vital? It's much easier just to swap out the SD Card with a SIM when Dual SIM is beneficial.

varcor said:
You have the S20 Hong Kong Variant. eSim isn't available on your device and changing firmware from TGY, which is the CSC on your device, to a different CSC usually creates more problems than it solves. The Forum is littered with users who have numerous issues after changing firmware. Firmware is CSC specific so altering this compatibility can have adverse effects. Carrier Aggeration, Wifi Calling, Samsung Pay, Samsung Health, Secure Folder as well as your Warranty may be at risk.
Another option if you want to have Dual SIM and SD Card is adding an adapter. I wouldn't consider that since it's a pretty funky setup.
https://www.simore.com/en/dual-sim-adapter-galaxy-s20-ultra-samsung-speed-zx-twin.html
On my Galaxy S8 I shaved a SIM Card, fixed it to the back of my SD Card to facilitate the setup you're hoping to achieve however Samsung squashed that option on S9's and likely S10's and S20's. I'm curious why you feel eSim is vital? It's much easier just to swap out the SD Card with a SIM when Dual SIM is beneficial.
Click to expand...
Click to collapse
Which S20 Snapdragon variant can support Nano Sim + eSim + Micro SD? I thought the HK version could do that and was about to buy.

Sharpshooterrr said:
Which S20 Snapdragon variant can support Nano Sim + eSim + Micro SD? I thought the HK version could do that and was about to buy.
Click to expand...
Click to collapse
According to Samsung Support, which I would take with a grain of salt, a future update may enable eSim on Snapdragon Devices. The Snapdragon 855 SOC is compatible with eSim as evidenced on the Galaxy Fold and I would think the 865 SOC on the S20's is as well, however at this time I'm not aware of any eSim enabled S20's with Snapdragon SOC's.

Zafira30 said:
There is Chinese firmware on it. maybe you can change it to another firmware. All S20 should have the eSim. Just locked by the software.
Click to expand...
Click to collapse
Hi dear, My S20 is japanese AU firmware. my phone also doesn't showing e-sim option.
west2cool said:
Go to Setting-About Phone-Software Information and check what it says under Service Provider SW Ver.
TGY - Hong-Kong
BRI - Taiwan
CHC- China
Click to expand...
Click to collapse
my phone says: SCG01_jp_kdi
Will it support e sim?
can't find e-sim option in my phone

Zafira30 said:
There is Chinese firmware on it. maybe you can change it to another firmware. All S20 should have the eSim. Just locked by the software.
Click to expand...
Click to collapse
Mine is S20 5G SM-G981J japanese au version phone. my device is not showing esim option.
can you tell my device is esim supported or not

S20 Snapdragon from Tradingshenzen

Hello Guys,
I bought a Samsung galaxy s20 from the Site Tradingshenzen and its for my a great Phone but its the Hong Kong Version the Csc is Open China. So my question is now its possible to change that csc to a other one without Rooting the Device? Would be great if someone can help me thanks forwards

jucin said:
Hello Guys,
I bought a Samsung galaxy s20 from the Site Tradingshenzen and its for my a great Phone but its the Hong Kong Version the Csc is Open China. So my question is now its possible to change that csc to a other one without Rooting the Device? Would be great if someone can help me thanks forwards
Click to expand...
Click to collapse
If its hong kong variant then it should have TGY csc
Moreover, you can change csc with samkey(no root required). Buy from ebay

JimzFreebies said:
If its hong kong variant then it should have TGY csc
Moreover, you can change csc with samkey(no root required). Buy from ebay
Click to expand...
Click to collapse
Is there no free way?

jucin said:
Is there no free way?
Click to expand...
Click to collapse
May be after rooting, it can be done but it may corrupt imei as only few users reported this.
Samkey method is very easy. Before buying, contact them and provide all details of your phone to check whether it support your phone or not.

JimzFreebies said:
May be after rooting, it can be done but it may corrupt imei as only few users reported this.
Samkey method is very easy. Before buying, contact them and provide all details of your phone to check whether it support your phone or not.
Click to expand...
Click to collapse
I asked them they say the sm-g9810 is not supported do you know any other way?

jucin said:
I asked them they say the sm-g9810 is not supported do you know any other way?
Click to expand...
Click to collapse
Bro you need to search question and answers forum.. I have read in a post where a user having g9880 changed its csc even samkey care was saying that its not supported.

JimzFreebies said:
Bro you need to search question and answers forum.. I have read in a post where a user having g9880 changed its csc even samkey care was saying that its not supported.
Click to expand...
Click to collapse
Do you know which forum? Because there are many but if you want search the model sm-g9810 in the SamKey forum it say not supported how he get that works :laugh:

jucin said:
Do you know which forum? Because there are many but if you want search the model sm-g9810 in the SamKey forum it say not supported how he get that works [emoji23]
Click to expand...
Click to collapse
Yes it worked. Its in same forum s20/20+/20 ultra questions & answers

JimzFreebies said:
Yes it worked. Its in same forum s20/20+/20 ultra questions & answers
Click to expand...
Click to collapse
I know bro but which thread do you know that? Thanks for the helping here btw :good:

jucin said:
I know bro but which thread do you know that? Thanks for the helping here btw :good:
Click to expand...
Click to collapse
Check all threads with name G9880 or TGY or BRI. It will not take much time to find it

JimzFreebies said:
Check all threads with name G9880 or TGY or BRI. It will not take much time to find it
Click to expand...
Click to collapse
I saw it now but looks like you can not change tgy or bri or chc to other only bri to tgy or tgy to bri

jucin said:
I saw it now but looks like you can not change tgy or bri or chc to other only bri to tgy or tgy to bri
Click to expand...
Click to collapse
No you are wrong. TGY or BRI are basically same.. Only network connectivity change like 5g, volte, wifi calling support. Don't know about chc but you can change it to tgy or bri.
I read your posts in another csc thread. You should be on default theme. Then install apk. It will show in themes. Then u can change csc

JimzFreebies said:
No you are wrong. TGY or BRI are basically same.. Only network connectivity change like 5g, volte, wifi calling support. Don't know about chc but you can change it to tgy or bri.
I read your posts in another csc thread. You should be on default theme. Then install apk. It will show in themes. Then u can change csc
Click to expand...
Click to collapse
I did that it dont show for me i asked someone if i can change from china to other csc like german he say that dont work because its other model then mine

eSIM Activation on SM-G988N (Korean) by changing CSC. If Possible ?

I'm struck. Could you please give me some help. I have imported SM-G988N Korean version in India because of Snapdragon. Initially I thought its a single physical SIM phone and eSIM can be activated by putting a request to my carrier since they have eSIM support. My carrier converted my one physical sim to eSIM but it never got activated on the phone. I rooted and If flash G9880 (HongKong) CSC will it get support of eSIM. ?? I desperately need second number activation or else I have to change my ULTRA as daily driver.
Its so important for me to stick to Ultra that I had to create a new thread for getting clarification/Help

G9880 (HongKong) No eSim Brother.

runnary said:
G9880 (HongKong) No eSim Brother.
Click to expand...
Click to collapse
Thanks for info. Which Snapdragon version CSC will have eSim. ?

jsbutran said:
Thanks for info. Which Snapdragon version CSC will have eSim. ?
Click to expand...
Click to collapse
None and you wouldn't be able to change to any other csc other than KOO, KTC, LUC and SKC which are all Korean csc.