In 2018 I lost my Hdd and private keys form my Sys wallet and masternode.
Yesterday I found them and tried to restore qt wallet. I believe I used wallet version 3… and now is 4…
I went to console and added importprivkey and received - this type of wallet does not support this command. Then I downloaded sys 3 qt and import private key, then downloaded new versions of qt but cannot sync correctly wallet but i see my masternode ammount.
When you createe a new wallet in SYS4 you have to untick the ‘decriptor’ option for importing keys to work. Create a new wallet and untick that option
Then go to the console and select the new wallet from the dropdown thatt will now show up