A user is facing issues accessing their balance in BTC Core, Sparrow Wallet, and Seedsigner.
The user made deposits from their Trezor wallet to Seedsigner/Sparrow Wallet/BTC Core node using Seed-Words & Passphrase in BIP39.
However, after not checking the balance for a while and realizing they had forgotten to change the setting from Testnet to Mainnet, the user found their wallet showing no transactions.
The user is seeking advice on how they can regain access to their wallet and retrieve their full balance.