Anyone help me how to swap NKN mainnet to NKN erc20
you can swap your mainet to ERC20 when the swap system is open.
You can found more information about it here NKN Mainnet Token Swap Update 2020
Next dates are September 20-30, 2021
Or you can swap using the exchange Upbit
Anyway you can find more information about swapping in the Wiki here https://wiki.my-nkn.cloud/index.php/Mainnet_NKN_VS_ERC20_NKN
Thank for your infomation!