I do not know how one can carry out this on the GUI, however so as to import a WIF personal key on a contemporary Bitcoin Core it’s important to use a descriptor. So as to get well from a backup, you almost certainly wish to use the combo() descriptor.
Right here is an instance with an instance WIF personal key: cSWVo8YMehg6STxqw6xGgmMJE6Ac6RCJ7owcrBZRAT7QANtyAAEj (it is a testnet-encoded WIF personal key on function, yours will probably be completely different). There’s most probably the same movement on the graphical interface, however failing that you could at all times use the command line (or the command enter on the GUI).
First craft a combo descriptor from this personal key and get its checksum:
getdescriptorinfo 'combo(cSWVo8YMehg6STxqw6xGgmMJE6Ac6RCJ7owcrBZRAT7QANtyAAEj)'
We get:
{
"descriptor": "combo(023ad6336ae257527ff59ec4356fa5d2ac33fff5e04be9e5958dfed9b0100b7948)#mv9rgx7y",
"checksum": "9zedq5ns",
"isrange": false,
"issolvable": true,
"hasprivatekeys": true
}
Now you can import this descriptor utilizing the importdescriptors command:
importdescriptors '[{"desc":"combo(cSWVo8YMehg6STxqw6xGgmMJE6Ac6RCJ7owcrBZRAT7QANtyAAEj)#9zedq5ns","timestamp":"now"}]'
Lastly rescan the blockchain from some extent earlier than which you’re sure to not have acquired cash. To rescan the entire chain from the genesis block don’t present any parameter:
rescanblockchain