iOS 13.4.1 no sim when sometime, Can charging but can’t use headphone. Please fix this problem. Thanks.

Hi BROHOU1,

Thank you for using Apple Support Communities. I understand you're experiencing issues related to no sim and your headphones not working on your iPhone. I'd be happy to assist.

Before we begin, do you have a back up? It's alright if you don't. However, it is always recommended to have a recent back up before troubleshooting an issue. Here is how to make a back up if you'd like one: How to back up your iPhone, iPad, and iPod touch

When experiencing no SIM I'd recommend taking a look at this article for troubleshooting steps: If you see 'invalid SIM' or 'no SIM' on your iPhone or iPad

Specifically, these steps:

" If you get an alert that says Invalid SIM or No SIM Card installed, follow these steps.

Make sure that you have an active plan with your wireless carrier.

Update your iPhone or iPad to the latest version of iOS.

Restart your iPhone or iPad.

Check for a carrier settings update. Go to Settings > General > About. If an update is available, you'll see a prompt to select OK or Update.

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.

Try using another SIM card. If you don't have one, go to your carrier's retail store and ask them to test with another SIM card. You might need to replace your SIM card."

For your issue around the headphones you will want to determine if the issue is with the headphones or with the device. Have you tried the headphones in another device? Here is a great resource on what to do if your headphones aren't functioning as expected: If your headphones don't work with your iPhone, iPad, or iPod touch

Thanks.