N976N SIM not working after update OS - Samsung Galaxy Note 10 Questions & Answers

My note 10+(N976N) is mod dual sim, using android 10. Everything works normally. Then I have updated to android 11 and the SIM is not working. I have tried to find out and know that after modding the dual sim, not all rom versions work, must update the exact version that supports dual sim. I have the following question:
1. Can I go back to the state before dual sim mod, so that I can flash any rom I want.
2. If 1. that is not possible, can you tell me which android 11 rom version to download for N976N that supports dual sim mod.
Thanks.

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Hello my friends
Just flashed latest Global mi 10 pro rom
Is is extremely fast and smooth
Battery is amazing
When first boot
One sim detect with no problem but after replacing sim slots to use my main sim
The phone won't detect any sim at all
Even after factory reset no luck to detect any sim
How can i fix this problem?
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Global doesn't support dual sim or are you testing with single sim?
raven213 said:
Global doesn't support dual sim or are you testing with single sim?
Click to expand...
Click to collapse
Global not supporting dual sim unfortunately
Was testing with dual sim
The main one was working fine
But after replacing sims not working anymore
Even after factory reset rom can't detect any sim at all i had to go back to chines eu beta rom
But global is way smoother and faster than Chinese roms
Battery way great too
rowihel2012 said:
But global is way smoother and faster than Chinese roms
Battery way great too
Click to expand...
Click to collapse
I feel ch rom is smoother and faster lol
Reboot your phone. Press and hold the Power button and Volume Up button for at least 10 seconds.
Check the SIM card. Turn off your phone and take out the SIM tray. ...
Clean SIM slot. ...
Try another SIM card (if you have one). ...
Turn on the Airplane Mode.
Hello,i have got same problem.when i install global rom,any sim not working.when i install eu rom it is working. And yes global rom is so smooth and fast
same problem
Hi, did you solve your problem ?
I just flasshed the miui 12 global rom and have EXACTLY the same problem as you, IDK what to do now
Unfortunately no
Now I'm using miuimix latest beta rom v20.10.22
But global way way smoother and faster
medo_maged said:
Hi, did you solve your problem ?
I just flasshed the miui 12 global rom and have EXACTLY the same problem as you, IDK what to do now
Click to expand...
Click to collapse
No
Unfortunately

Question Oneplus dual sim conversion

Hi so I bought a oneplus 9 Tmob but I flashed it to global after that I installed le2113 update on my device so that I could use dual sim however I cant even tho there are sim connections available for second sim is there any way so that I can use dual sim on my device without ROOT.
Current os: A13
Software version: LE2113 originally was LE2117
same here please any solution

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