So after August 1, 2017, with the Bitcoin Cash fork, many other BTC forks have come up, and some of them reasonably valuable, like Bitcoin Gold.
I'll teach you how to rescue most of them. I do not like to install obscure forks on my computer for security reasons (they may be infected with viruses and such). I think a lot of people think like me. That way I only recover forks so I can use a safe wallet known to the community.
Coinomi's Android wallet has a great reputation in the community and supports most of these forks. I'll teach you how to recover several forks here, quite simply.
Important detail: Coinomi only accepts the private key from Legacy addresses (starting with 1) and Segwit P2SH (starting with 3). Segwit P2WPKH addresses (starting with bch1) can not be retrieved using this method.
These are the Forks supported by Coinomi:
Name Date of Fork Price USD (03/18/2018)
Bitcoin Cash 08/01/2017 920
Bitcoin Gold 10/24/2017 60
Bitcore 11/2/2017 7
Bitcoin Atom 1/24/2018 15
BitcoinPrivate 2/28/2018 31
If you had bitcoin on those dates, you have these coins at your address. Not all of these coins are 1: 1 with bitcoin, some like Bitcore are 1: 0.5 (0.5 BTX for each BTC).
To rescue the forks, just follow these steps.
1 - Move all your bitcoins to another portfolio (most important step, since you are exposing your seed)
2 - Download Coinomi:
https://play.google.com/store/apps/details?id=com.coinomi.wallet3 - Within Coinomi, add these coins: Bitcoin Cash, Bitcoin Gold, Bitcore, Bitcoin Atom and Bitcoin Private.
4 - In your browser, in private mode, or on an offline computer, go to this website (BIP39 Mnemonic Code):
https://coinomi.com/recovery-phrase-tool.htmlPut your Recovery Phrase, or Seed (Remember to move all your coins before to another wallet)
In the "Coin" box, choose Bitcoin.
Still on the BIP39 Mnemonic Code site, scroll down to Derived Address.
5 - Open your Coinomi Wallet and open the wallet of each of the coins mentioned above. Click on the QR Code icon (in the upper right corner) and scan each Private Address QR Code that appears on the site bip39, until you have redeemed the entire balance.
6- Repeat for each coin you want to recover.
I recovered all the forks well using this method, no problem.
There are many other forks, this site shows most (
https://www.btcdiv.com).
Translated/Copy/pasted below merited article.