Unable to open Backup binary file Linux I recently reinstalled Linux mint; I backed up my wallet, and I am unable to import the backup created from the original wallet (Qt version 4.8.6.) to the newly installed wallet(Qt version 4.8.6.) I have just installed. When I try and open up the backup (binary file) using Bitcoin-QT a textbox appears with the message:


  Payment request file can not be read or processed! This can be caused by an invalid payment request file.


Can anyone help with this please? Or, just point me in the right direction.
To restore a backed up wallet.dat file, you need to replace it manually.

Just overwrite the one in your data directory (see https://en.bitcoin.it/wiki/Data_directory to find it for your platform).

Opening the file with Bitcoin-Qt means you're trying to process a payment request; it's not for opening a wallet.