Galaxy Tab SM-T805 Do not turn on

[kidboyadm]

Hi, i have a Korean Version of Galaxy Tab SM-T805 Unlocked ( With 4G and WI-FI ) thats not working. The device not turn on, i send for suporte and tell me about change the System Board, but i cant find a system board compatible and ship from Brazil or USA. Someone know how can i solve this or where i can buy the system board ? In attached i send the picture of tablet system board