Original topic:

S21 FE network data connectivity issues after update.

(Topic created on: 11-29-2023 01:21 PM)
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Members_Iph1gKI
Active Level 1
Options
Galaxy S

Ever since the last security update my phone had been having connectively issues. Calling and SMS is fine, its just data where the internet stops for a minute before working again. This happens with my other SIM cards too. I am not able to sustain 5G connection too, which wasn't the case before the update.

I tried network reset and tried a factory reset and all the trouble which comes with it and still no luck.

This started happening during an update I got on earlier November and I got another update yesterday (26th Nov security update for Nov) but that also didn't seem to fix it. Does anyone else have this trouble and could anyone help me with it? Thanks!

 

One thing I have found out is that the issue is only there when I have both my sims on. I tried with just one sim and the connectivity issue was solved. I have tried all sorts of configurations like using only Slot 1 and Slot 2, exchanging the dual sims slot etc. Regardless of the slot its in, data only works if there is one sim present. 

 
18 Comments
o1eroy
Active Level 7
Galaxy S
I don't have such an issue. I'm getting a constant 5G network and good speed too. November security didn't give me any hard time yet. I'm using Airtel.
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Galaxy S

That's what I have found from the forum. if you google this issue you can see many different posts on this forum stating the same issue from 2022 Jan onwards, it wasn't just November security. 

I would recommend stop updating your phone. Samsung has yet to address this issue in any of the posts other than give generic network troubleshooting solutions. 

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Galaxy S
I face same issue for my S21FE after October month security update. Also there is no proper response from Samsung service center they simply says just factory reset your mobile. I also did this but no results.
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Galaxy S

Exactly same. I thinking of going to service center soon and have it checked but also hoping the One UI 6 update might fix or reset the issue. Will update here on whichever happens first.

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cs_member10
Moderator
Moderator
Options
Galaxy S

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your query, we request you kindly share the log file. Without a log file, we cannot analyze this issue. This will help us to further investigate and resolve this issue.

To attach the log file: Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).

Note: To ensure relevant log information is included in the error report, submit the report within 3 minutes of encountering the bug or error, and do not terminate (swipe away) the Samsung Members application until you are notified that the report has been sent. This can take up to 5 minutes.

Warm Regards,
Samsung Customer Support

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Gagan9
Active Level 1
Galaxy S
Even i am facing the same issue,i think its with Exynos processor as i do have snapdragon in my family but its working fine
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Mayur21FE
Beginner Level 2
Galaxy S
After update, my s21 FE SD is not connecting to internet in my airtel and getting hanged after calling someone from airtel network
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SourSugar
Beginner Level 2
Galaxy S
Same issue here
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dl01
Beginner Level 4
Galaxy S
Same issue even after One UI 6, it keeps disconnecting 5G in Jio and Airtel. Also, in background the other SIM sometimes goes into emergency call even though there is a good network and changing to its data reconnects it. Very much disappointed with this. Let me know if anyone has any solution for seamless Internet. Using this as WiFi hotspot but very bad experience.
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