Is IP SET button is same IP REPORTER button? If it is I have no luck to get recovery mode.
and at last no new IP listed in router dhcp list. and scanning network with arp also unsuccessful.
Is this maybe happend beacuse of new antminer s9j frimware?
I would suggest you connect a pc or laptop directly to the miner, and perform an ip scan using a tool such as angry ip or nmap.
But, for your information and the people reading this thread:
If you boot using the sd card, you can also permanently install Braiins OS to the nand controller flash storage, this would also get rid of the evil 2019 firmware.