So about 3 months ago my Samsung Galaxy J3 2018 got wet and stopped working, recently out of curiosity I plugged it in and it started charging, long story short it was working fine. Up until about an hour ago when I plugged it in to charge and turned the screen off so as not to distract me while I was sleeping, but it's gone blank and the screen won't turn back on. The phone itself is working as I can hear it when I press the volume buttons and I removed the sim card and it notified that judging from the sound it made, but the screen itself is black. I can't take the back off as it doesn't have a removable back so I can't remove the battery. I held down the power and volume down key as I read to do which restarted it but when it was on the screen remained blank. I can't factory reset it as it has important things on that I can't lose, I'm not sure why it's suddenly happened I'd assumed the water was out as it has been working all night. Any help would be much appreciated thank you
Read more: https://samsungus.org/qa/black-screen-of-death-samsung-galaxy-j3-2018.html