This is my fist time here. Sorry for my english

My device (M8S+ S812_M8_REV1.1) one time stoped on ANDROID logo. I’ve searched the forum and I tried to repair it by SD card maker and Android 5.1 firmware, OpenELEC… nothing helps. Now M8S+ is bricked and there is only red LED light. USB burning tool doesn’t see it when I connect it to PC USB.
Tell me please, which 2 pins should I connect together to make short circuit in my NAND (I think this is the unit with Samsung logo) ?
Is this original M8S+?
I hope there is chance to bring it to life?
Photos of the PCB are attached.
I really appreciate any help you can provide.