Iphone 13 pro max currently having a suddenly black screen!

Hey everyone, hoping for some advice. My phone's developed a really annoying screen issue:

1. **Last weekend:** Woke up at 7 AM, checked my phone, locked it, and went back to sleep. About **40 minutes later**, I checked again and the screen was completely **dead**. Occasionally, I'd see some lines or flashes. I tried everything I could think of, and eventually, a **hard reset** got it working again. I honestly thought that was the end of it (I even made another post thinking it was fixed!).

2. **But no...** **This Monday at the gym:** I was listening to music and went to check my phone – **black screen again**, totally out of the blue! This time, a simple restart wasn't enough. I was stuck there for **about 3 minutes** before it finally came back on.

3. **Later that night:** Got home, plugged it in to charge while I showered. Picked it up afterwards... **black screen again**! This time, it surprisingly turned back on just by locking and unlocking the screen – no restart needed.

4. **The real kicker:** While I was **telling a friend on Discord** about the whole mess, I picked up my phone to check something... and **it happened AGAIN**! This time, it took a **full 10 minutes** of messing with it before the screen finally lit up.