My phone died last night and when i charged it and put it on, my date and time reset. It reset to 10 April and to 3am. I lost various streaks, alarms didnt go of anymore and my ringtones and all changed

I have a Galaxy Watch Active and want to add my card to it via samsung pay. It keeps asking for a pin and I can't remember making one. I googled how to reset the pin and make a new one. It said I should erase the data and clear cache and force stop t...

Is there any way to change all my app icons to be dark themed? Like the same color gray. Because my apps screen looks messy with the gray apps and then the random colours