Does 14.6 fix the iOS error, SIM Card Failure, where it loses your cell service accounts?

If you see No Service or Searching on your iPhone or iPad

1. Check your coverage area. Make sure that you're in an area with cellular network coverage. ... 
2. Restart your iPhone or iPad. Restart your device. ... 
3. Check for a Carrier Settings update. ... 
4. Take out the SIM card. ... 
5. Reset your Network Settings. ... 
6. Update your iPhone or iPad. ... 
7. Contact your carrier. ... 
8. Get more help.

If you see No Service or Searching on your iPhone or iPad ...

Remove your SIM card from the SIM card tray and then put the SIM card back. ... Make sure that the SIM tray closes completely and isn't loose. If you use a SIM tray from a different model iPhone, iPad, or from another phone manufacturer, it might not fit properly.

If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad ...

Learn what to do if you see a SIM not supported alert.

Has anyone got a fix successfully? I started getting sim failure (running ios14.6) 4 days ago. On 3rd day when I got to apple store appointment, the phone worked perfectly. So they could only gave a bunch of BS suggestions. And refused to address the issue.

A day later, the sim failure came back.

extremely frustrating!!

I haven’t come across any posting with apple admitting that this is a known issue related to their iOS.

What can I do? It’s iPhone 11 Pro, and the warranty has expired. :(

Clearly not… as it’s still happening on both my mom’s and my cell. :( only turning off and on helps.

I have turned off and on again and STILL says “no SIM card”

Please do not hijack some elses thread. If you see NO SIM card - it means there is no sim card in the phone

I just remove the Sim card and popped it back in again that seems to have rectified the issue. So far so good.

Same issue. Have had phone for 5 years and this issue only started happening for both my husband and I after updating our phones to ios14.6. Clearly a bug with the iOS update.

None of Apple's recommendations listed above fixes the problem. I believe they are trying to live in a world of denial that they have caused the issue and cannot fix it.