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sim manager not recognising sim and no data roaming or access to apn settings

5 months ago
November 6, 2024
4 replies
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AndyMancs
New  Contributor
3 replies

Galaxy S21 Ultra 5G SM-G998B/DS

ID sim is in sim #1, nothing in sim #2

When I pull down quick links from top it does show ID

Sim manager says nothing in sim #1 or sim #2 (cannot check under preferred sims as calls, messages, mobile data not selectable)

Under Mobile Networks Data Roaming is not selectable, neither is Access Point Names or Network Operators

Software is up to date & I have tried rebooting. Have tried turning on Flight Mode for 1 min.

Other than mysteriously loosing internet for few minutes at a time last few days, able to access mostly. Not had any problem making calls except again few odd times last few days in places never normally an issue

Anyone any ideas?

Best answer by Daz_S

@Pboddy I was wondering about changing the sim to esim to see if that cured it. Any idea how to do that

This article should help :

How do I get a replacement SIM or eSIM? F.A.Q.

HTH

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+25

Tom
iD Mobile Employee
8182 replies
5 months ago
November 6, 2024

Hi @AndyMancs

Have you tried resetting network settings while the iD Mobile SIM card is inside the device?

Settings > General management > Reset > Reset mobile network settings

Resetting network settings will NOT reset any personal data (Photos, Videos, Contacts etc) only network settings.

Tom

Did my comment help answer your question? If so, don't forget to mark the response as the Most Helpful Answer.

P

Pboddy
New  Contributor
1 reply
5 months ago
November 10, 2024

AndyMancs wrote:

Galaxy S21 Ultra 5G SM-G998B/DS

ID sim is in sim #1, nothing in sim #2

When I pull down quick links from top it does show ID

Sim manager says nothing in sim #1 or sim #2 (cannot check under preferred sims as calls, messages, mobile data not selectable)

Under Mobile Networks Data Roaming is not selectable, neither is Access Point Names or Network Operators

Software is up to date & I have tried rebooting. Have tried turning on Flight Mode for 1 min.

Other than mysteriously loosing internet for few minutes at a time last few days, able to access mostly. Not had any problem making calls except again few odd times last few days in places never normally an issue

Anyone any ideas?

I have a standard S21 and exactly the same problem. I did try the network reset but it made no difference. This issue has only come to light since the recent update to place.

I did put the sim in slot 2 to see what would happen. It didnot work which was expected but when i returned the ID sim to slot one it all came back up, well for about ten minutes or so then is greyed out again.

It all seems to work but just have no control over the sim.

I believe this is a Samsung firmware fault from the last update but no help from them.

I was wondering about changing the sim to esim to see if that cured it. Any idea how to do that.

Paul