A notification appeared to install an update, and the battery was at 9% charge. I ignored the notification because it was already loaded and I couldn't stop it; it was sudden and mandatory. After that, the battery started to drop rapidly until it reached 4%, and I left it on the charger. When I returned, I found it off. No matter how much I try to turn it on, it doesn't turn on; it's completely off. I pressed all the buttons, tried different charges, but it doesn't turn on. Any help?
