I have a Litecoin paper wallet (i.e. private-key and public-key pair printed out on paper) and am trying to get the private-key into Electrum-LTC 2.6.4.2 so that I can transfer it.
First I created a new standard Electrum wallet but when I go to Wallet/Private keys/Sweep--and paste the private key into the box-- basically nothing happens--can't continue from there because the "sweep" button stays grayed out -- and have to cancel to get out !
What am I doing wrong?
I have never tried to sweep a litecoin paper wallet into electrum, but i do know that if you try to sweep a bip38 encrypted bitcoin private key (paper wallet) into the desktop version of electrum for bitcoin, it won't work.
The symptoms are exactly the same: the button just stays greyed out when trying to sweep an encrypted private key.
Is your private key bip38 encrypted? If so, you can try to decrypt it before sweeping, if this is the issue, decrypting should solve it.