My phone was at 20% today and suddenly turned off; just before completely turning off the "Samsung" logo appeared on screen, like when it's about to restart. It wasn't turning on again so i plugged it in and it showed 0% battery: it took a good 15 minutes before it reached 5% and i could turn it on again.
At this point, it randomly started downloading and installing what i think was a system update (it showed the One UI logo - i think, it was very quick); once it was done (a couple of minutes) i left it charging, only to see that it was at 15% after almost 30 minutes. I plugged it out and and tried three different charges (that i know work correctly) but to no avail: it kept showing that the estimated charging time was 32 hours (!) and as soon as i tried to plug it out, the battery started dropping literally 1% per minute.
I cleaned all the cache, looked for updates, the phone itself is optimized and the charging (according to the phone test) works correctly, but still its taking an hour just to charge just 10%. It's now at 25% and the estimated charging time is 6 hours.
Does anyone know what could be the problem? Is it some recent update? It was working more than fine up until a few hours ago, with the battery lasting a whole day+.
