Aspire A315-54-5774 not turning on
Hi, I have a problem with my one year old laptop, yesterday I was using it casually (I need to mention that I cleaned my keyboard) and everything was working as usual even after cleaning. Later on I went outside for about a few hours and when I got back, I tried to power it on normally as usual, and my LED mouse flashed for a few milliseconds and laptop didn't even tried to boot up. Everything looks perfectly fine, battery is charging, losing power too (I tried battery reset, didn't work, tried to unplug and plug battery, didn't work, unplug and plug clock battery too, didn't work). I have no idea what caused it to not work even when internally everything looks completely fine, but I came to conclusion that clock battery, that circle small battery could been drained all the way down, so it would need to be replaced, I'm not sure, I'm not anyone that could know that, but nothing is making sense when earlier my keyboard and even power button on keyboard worked like everyday.
So I'm asking for help, I would be really thankful if there's someone that could help, because it's my most important thing at the moment because I work on that laptop and I have really important files on it at the moment.
Looking forward to any reply.
Thanks in advance for any reply.