A self-contained read-only CD/USB stick with everything you need to perform highly secure air-gapped Bitcoin transactions. Offline cold storage made (slightly more) practical.
Electrum 3.0.2 no longer offers the deseed function. In order to cold-online mode to work, it requires the seedless, public-key-only wallet to be exported when synchronizing with the USB storage. Maybe Electrum offers another function for this task.
Alternatively, cold-online mode could be removed entirely. QR scanning with mobile Electrum is safer and more practical than exchanging a USB drive with an online system.
Electrum 3.0.2 no longer offers the deseed function. In order to cold-online mode to work, it requires the seedless, public-key-only wallet to be exported when synchronizing with the USB storage. Maybe Electrum offers another function for this task.
Alternatively, cold-online mode could be removed entirely. QR scanning with mobile Electrum is safer and more practical than exchanging a USB drive with an online system.