eSIM randomly stops working

• /e/OS version: /e/OS 3.5-a14-20260211580870-official-FP4
• Device model(s): Fairphone FP4
• Impacted Application: Telephony / SMS
• Affected application/URL: --
• Browser/client and version: --

The problem

Since version 3.3 (December 2025) I’ve massive issues with my eSIM. It randomly stops working, but it is not visible that there is an issue. I just realize it, when I try to call someone and there is nothing else on the phone app than the name of the person/number I try to call. Normally there are five buttons like to mute, add numbers, change sim card and so on. The call cannot be done in that case.

Furthermore, for people trying to call me there is a free sign, so they think my phone is ringing. I do not get any notification, not even that a call was missed by SMS.

The only way to solve this is to restart the phone, when I realize that the issue happens again…

By the way, when the issue accures, the eSIM cannot be deactivated nor the flight mode is working. Of course, it is possible to activate the flight mode, but the physical SIM and the eSIM card are still showing their connection is activated.

eSIM provider: WEtell (Germany)

Technical details

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