SM-T815 tablet stuck into boot loop

I have a Samsung Galaxy Tab S2 (SM-T815), witch got into a bootloop after a android update. If the tablet reaches 0% battery and i try to plug it in, it automatically powers on into samsung logo and stays there. What i've tried: ---------------- - Keeping pressed the power button (up to one minute) - nothing - Home button + vol up + power (for recovery mode) - nothing happens - Home button + vol down + power -> Goes into a menu where i have to choose between rebooting and going download mode (rebooting goes back into samsung logo loop) ---------- ## If i choose download mode: ## - Tried flashing original firmware with Odin3 (after finishing flashing restarts and goes back into boot loop) - Tried firmware from different sites (I live in Romania and there are 2 types of firmware available for this country) Some of them fail at the end and others pass, but after reboot goes back to bootloop - Kies - not compatible - SmartSwitch - not compatible Any help is appreciated!