How can i enable call recorder in my s7 edge, how can i record my call, is there option in my phone to record call ir should i install an app?

The backup fails at 99%, i signed in samsung account too, pls help

When my gallery was version 5.4.12.5 the application was 4.31 Mb, when i udpdated the gallery version is 5.4.13.2 and it had 52.93 mb, also i didn't see any difference in the new update and also i cant see the hide option in both versions, help me

so many sellers are there everywhere selling the fake devices that are still looking the same as the original ones with original imei etc..