Download SimpleMiningOS image from Download & Install section
Open balenaEtcher
Flash OS image using above tool to any HDD/SDD/NVMe/USB drive (If you do not see drive then set "unsafe mode" in settings but be careful not to flash this to drive where you have your system or files!)
Do not format any of partition even if your system request such operation
Log into simplemining.net dashboard
Click "Add Rig" button on your Rig List and press "Allow adding rigs for 12 hours" button.
If you have already working rigs in the same LAN network then just boot rig and it will configure itself automatically within 1 minute
Set your email using one of method (only needed for first rig in LAN network)
a) Edit config.txt file on partition labeled SMOS_CONFIG (remember to eject/safely remove usb)
b) Type directly on LCD screen during first boot
connect LCD monitor and proceed with instructions
having connected PC speaker will guide you thru process:
3 short beeps - type your email address and press ENTER (next 3 beeps - repeat that step again for validation)
2 short beeps - email is accepted and saved and rig will connect to your account
1 long beep - email syntax is invalid or email does not match and whole procedure starts again with 3 short beeps
After booting your rig will appear in Dashboard RigList
Go to Group Config → Select your miner program and enter your options

AMD Vega 64 profitability calculator