I have been observing crashes of applications - such as Chrome - fairly frequently. Suddenly the screen goes blank! This has been happening for the past few months - after upgrading to Android 9/One UI 1.0. Do others face similar issues?
I have scanned the phone through Device Maintenance app. No H/W, S/W problems or malware reported!
do factory reset once..if problem persists then just go to Samsung service center and flash same firmware from them...and when you get next firmware security patch, just download it by switching on download booster option..basically sometimes when you update your firmware from your device network or through wifi..then if network is little bit slow, it can skip important files and create issue like ui lag,battery drain, camera blure etc...so if problem arise then just flash firmware through Odin v.3.0 or best go to nearest Samsung service center...500%your problem will be solved 👍