A system update appeared on my Note 2 when its battery was low so I decided to press updated later. Apparently my finger slipped and tapped the other one, causing my battery to eventually run down and brick my phone. Accoding to some guides, I tried to press the power/volume up and then the volume down button, tried to swap my spare 8500 mah battery and all other thing without the power. Nothing worked, is there any other solution i can try? I don’t want to send my phone back yet, thank you.