Use only the official links below. No real recovery asks for your seed phrase or private key. If anyone offers to recover funds for you, it is a scam.

1. FTM never moved to Sonic (S)

   Fantom to Sonic

   $1,125 · 1 position

   You hold FTM on Ethereum that was never moved to S on Sonic. Sonic's guide says the Sonic Gateway bridges it 1 to 1.

   1. Open the Sonic Gateway and connect the wallet that holds FTM on Ethereum.
   2. Select FTM (Ethereum), enter the amount, click Bridge and approve the transactions.
   3. When the Claim button appears, claim your S on Sonic. Sonic's guide is from 2024, so check the Gateway still lists FTM (Ethereum).

   Sonic Gateway (opens in a new tab)Official docs (opens in a new tab)

2. MATIC never swapped to POL

   Polygon

   $384 · 1 positionMay not work

   You hold old MATIC on Ethereum that was never swapped to POL. The swap is 1 to 1. Polygon has not announced a deadline.

   1. Open the Polygon Portal upgrade page and connect your wallet. Switch the wallet to Ethereum.
   2. Approve the upgrade contract to use your MATIC.
   3. Confirm the migrate transaction to receive POL. You pay Ethereum gas.

   Polygon portal (opens in a new tab)Official docs (opens in a new tab)

3. MKR never converted to SKY

   Maker / Sky

   $334 · 1 position

   You hold MKR, or MKR in the old DSChief voting contract, that was never converted to SKY. The converter still works. Its fee is 5% now (read on-chain 2026-10-01) and rises 1 point every 3 months.

   1. Open the Sky app and connect your wallet.
   2. If your MKR is in the old DSChief voting contract, first call free(amount) on that contract.
   3. Approve MKR, then convert it to SKY. You get 24,000 SKY per MKR minus the fee.
   4. Without the app: call mkrToSky(usr, mkrAmt) on the converter 0xA1Ea1bA18E88C381C724a75F23a130420C403f9a.

   Sky app (opens in a new tab)Official docs (opens in a new tab)

4. KNCL never swapped to KNC

   Kyber (KNCL)

   $173 · 1 position

   You hold old KNCL tokens that were never swapped to KNC. The KNC token contract still accepts them.

   1. Approve first: on the old KNC token (KNCL) 0xdd974D5C2e2928deA5F71b9825b8b646686BD200 call approve(spender = 0xdeFA4e8a7bcBA345F687a2f1456F5Edd9CE97202, amount).
   2. Open the KNC contract 0xdeFA4e8a7bcBA345F687a2f1456F5Edd9CE97202 on Etherscan, Write as Proxy tab, and connect your wallet.
   3. Call mintWithOldKnc(amount). It burns your KNCL and mints KNC 1 to 1.

   KNC contract on Etherscan (opens in a new tab)

5. STG never swapped to ZRO

   Stargate / LayerZero

   $1 · 1 position

   You hold STG that was never swapped to ZRO. The official redemption site gives 0.08634 ZRO per STG. LayerZero says conversions end on 15 December 2026.

   1. Open the STG Redemption site and connect the wallet that holds STG on Ethereum.
   2. Sign the Terms of Conversion message when asked, approve STG, then confirm the swap.
   3. Do this before 15 December 2026. Conversions are not supported after that date.
   4. Without the site: call swap(stgAmount, signature) on 0x921949cc006A563D76Abd111a3e4c2ACe2C4273f. The signature is of the Terms text.

   Stargate's STG to ZRO post on X (opens in a new tab)Official docs (opens in a new tab)

6. zkSync Lite balance not claimed

   $1 · 1 position

   zkSync Lite was shut down on 2026-05-04. Remaining balances are claimable on Ethereum through a claim contract and a withdrawal portal. Your account is on that list and has not claimed.

   1. Open the zkSync Lite withdrawal portal and connect the wallet that owned the account.
   2. The portal finds your address in the final state, builds the proof and sends the claim. Follow its prompts.
   3. Confirm the Ethereum transaction. Tokens go to your L1 address. Matter Labs sponsors gas for the first 100,000 withdrawals.

   zkSync Lite withdrawal portal (opens in a new tab)Official docs (opens in a new tab)

7. REPv1 never swapped to REPv2

   Augur (REP)

   <$1 · 1 position

   You hold old REPv1 tokens that were never swapped to REPv2. The REPv2 contract still accepts them.

   1. Approve first: on REPv1 0x1985365e9f78359a9B6AD760e32412f4a445E862 call approve(spender = 0x221657776846890989a759BA2973e427DfF5C9bB, your full REPv1 balance).
   2. Open the REPv2 contract 0x221657776846890989a759BA2973e427DfF5C9bB on Etherscan, Write tab, and connect your wallet.
   3. Call migrateFromLegacyReputationToken(). It moves your whole REPv1 balance and mints REPv2 1 to 1.

   REPv2 contract on Etherscan (opens in a new tab)