sony xperia tablet 2 maybe bricked topic

hi,

i'm new in the forum.
i have an issue:
my tablet doesn't turn on.
i've try to turn it on with the recovery mod (power button and volume up) but nothing...
i put it on charge for something like 4 hours but nothing, no led blinking, no vibration.
what can i try now ? (after pray i mean:eek:)

thank you guys