NayutaCore FAQ Backup Restore

v0.4.4

Where should I store my channel backup files?

It is intended to be stored in Google Drive.

Is it necessary to write down the passphrase if I do a channel backup?

No, you need to write down the passphrase as well.
Passphrases and channel backups are related, and you cannot use a channel backup file without restoring the passphrase.

When should I perform a channel backup?

It is assumed that the channel will be saved each time it is created.
In v0.4.4, a notification will be displayed on the Home screen(⚠).

What is done in a restore using a channel backup file?

The use of the channel backup file is not to restore the channel itself, but to force the channel to close and receive your balance as Bitcoin.

The Lightning Network channel information is managed by both sides of the node, and if you force the channel to close with outdated information, it will be treated as a violation and you risk losing all your balance.
Nayuta Core uses LND’s Static Channel Backup(SCB) to create backup files, and if this is used on Nayuta Core without channel information, the node that is the channel peer will force close(ref).

I have the passphrase saved, but no channel backup file. If the other node force close, will the channel balance be returned in Bitcoin?

No.
You will need your wallet data because your balance will be transferred to the anchor script address and then you will get it back(ref).
Your channel balance will be lost.