Initial Electrum wallet is segwit. I think I forced it through as an invalid BIP39 seed phrase cause the checksum=failed but I was still able to proceed.
Those are the exact steps I took in Electrum:
-snip-
Actually, you can use iancoleman without changing the source code.
All you need to do is to get your wallet's master private key and click the right options.
Follow these steps:
- 1. If you don't have Electrum, restore your wallet using the seed and the same steps you've mentioned.
- 2. Open console tab (View->Show Console) and type getmasterprivate().
- 3. Copy the master private key (yprv) and paste to iancoleman's "BIP32 Root Key".
- 4. Select BIP141 tab and select "P2WPKH nested in P2SH" in the 'Script Semantics' drop-down menu.
- 5. Check the addresses, it should be the same as Electrum's.