I lost my seed. What do I do?
Your 29-word seed contains full access to your wallet and balance of Siacoin. For various security reasons, the Sia team does not have access to any user's seeds. We cannot recover your seed for you.
Losing your seed means losing access to your coins.
This is a single circumstance in which you can locate a lost seed using Sia-UI.
If your wallet happens to be unlocked, you can click recover the seed in the Terminal tab of Sia-UI. Enter:
and your wallet's seed will be presented.