There is now 2 different chains with 2 different coins: Bitcoin (BTC) and Bitcoin Cash (BCC/BCH). There is nothing to do to get Bitcoin Cash: once the chain has split and according to Bitcoin Cash protocol you should have got as many BCH as the BTC you own on this second chain.
But managing these BCH will require to be really careful.
The Ledger Wallet Bitcoin application is the same interface to manage both your BTC and your BCH (and also some altcoins). You must select on which chain you want to operate.
Currently all but Bitcoin Cash are the exact same - you have the exact same balance on them. However keep in mind that doing a transaction on one of those 3 views will make a valid transaction on all other chains that are the same.
How to see these chains ?
If it is not automatically done, you'll have to update your Ledger Wallet Bitcoin application by reinstalling it.
Remember that you only need to do this if you want to transact on the Bitcoin Cash chain.
If you have
you can chose on the Ledger Wallet Bitcoin application between the different Bitcoin chains but you need to have the latest firmware. To know how to update, please refer to this FAQ.
You also need to install the BCH application on your Ledger device itself through the Ledger Manager (the app will be available within a few hours). Make sure to always open this “Bitcoin Cash” application before transacting on that chain, not the “Bitcoin” application — otherwise you’ll get an error when signing.
To open and manage your BCH, you'll then have each time to:
Some Nano / HW.1 users were told we didn't know how and when the BCH management would be available, but everything is now technically ready. You can chose on the Ledger Wallet Bitcoin application between the different Bitcoin chains but you need to have the latest firmware. To know how to update, please refer to this FAQ. This update will be automatically proposed when released.
You'll have to be really careful to manage the right chain, not confusing the BTC and the BCH ones when you transact or copy your receiving address.
Unplugged owners or if you don’t want to update your device : you will still get your Bitcoin Cash balance. If you wish to transact immediately, you should import individual private keys into a compatible wallet following the “Advanced” part of this recovery procedure — be aware that there’ll likely be scammers advertising fake splitting tools and dedicated “Bitcoin Cash” wallets, and do your own research, slowly. We suggest using https://github.com/NicolasDorier/BCCSpliter
What to do after the fork?
This blog post explains the best practices to manage BCH, split your funds, and perform your transactions. This fork can be difficult to follow and wil go on moving, with Bitcoin and Bitcoin Cash prices going up and down, etc. You'll read and get inconsistent advices, there may be FUD and scam attempts. So you need to be really cautious and patient, not moving funds as long as you do not absolutely need to.
You'll also maybe have to split your funds.