Flashing Screen on Galaxy S5

[Dgratz110802]

Recently I turned my phone down on the lowest brightness setting, and it started to flash a yellowish color. I found that as long as I don't have it on that setting I'm fine. But now whenever I go to turn on my screen (despite the brightness level) it flashes green and sometimes won't turn on and it can take several minutes for me to turn it on. I have looked up solutions and found some, but they often don't work. Does anyone else have this problem? And if so, could you help?

 

[B. Diddy]

Welcome to Android Central! Is the phone rooted or unrooted? Do you have any 3rd party screen dimming apps installed?

 

[Dgratz110802]

My phone isn't rooted and I don't have any screen dimming apps on it

 

[B. Diddy]

Does it happen in Safe Mode as well? https://support.t-mobile.com/docs/DOC-10696

 

[Dgratz110802]

For some reason, yesterday it stopped doing the flash thing. It did this before but it came back a day or later, so I'm thinking it'll come back. Anyway, when it still did it, I went into safe mode and it didn't stop. So it's not a problem with any of my 3rd party apps.

 

[B. Diddy]

That makes me think it's a hardware issue. A connection might be loose, or something might be about to fail. Make sure all of your data is backed up or synced, and consider bringing it to a repair shop.