- /e/OS version: 3.1.1-a14-20250828521479 - Device model(s): Fairphone 4 - Impacted Application: Phone - Affected application/URL: - Browser/client and version: ## The problem I bought this phone two years ago, flashed /e on it, and it simply works. A time ago, I think with update to A14, the phone doesn't work anymore. It simply doesn't subscribe correctly to my provider (pt.lu). I have to switch on VoLTE (4G Calls) to be able to telephone again. I can start a calling now, but after a few minutes, the other doesn't hear me anymore and after a few seconds, the phone closes the calling. I am reachable now, but as I switched on 4G calling, I don't see any number, all calls are unknown. When I switch off 4G call, I am not able to receive or make a call. When someone tries to call me, my provider simply says that my number is currently switched off. **Steps to reproduce** flash current /e on FP4 ## Technical details <!--Add the labels corresponding to your issue by adding a tilde and typing the name of the label you think apply to your issue in the line above. You need to type a tilde before the name of each label you want to apply to the issue. -->