Hardware wallet - Claiming forked currencies
You can always use backup passphrase which you have to write down on device setup. For the two mentioned devices backup pass phrases are BIP39 compliant. That means that you can always use other wallet/device which is BIP39 compliant and supports the forked coins, enter the backup passphrase on this device and redeem the coins. Note however that it has certain security implications  - you open the possibility that your private keys might be compromised by the new wallet device/software.