A few days ago, i updated my phone. Suddenly, the phone goes blank. After a few minutes, the front small screen starts working, but if f i open the fold or if i unfold it again, the front screen goes blank, and the middle is already blank. I saw a video of trying to restart the phone by pressing the low volume button and the start button for 20 seconds. Doing that, the phone starts, and even when unfolded, the phone works, but for a short while, then with a hissing sound stops. Am getting a serious software error and reloading the software.
