I am experiencing an issue where I can't activate WiFi in flight mode. I have contacted Samsung dozen of times, reset the device and followed all the steps but no luck. Did anyone experienced that? I never had it with other Samsung devices (nor the other ones).
This is exactly the problem - I am unable to turn the WiFi back on when airplane mode is on. Didn't have this issue with S20 but it persists with S21 Ultra. I have also checked S21 (not ultra) and this works as expected (e.g. I can flip WiFi back on even in plane mode).