20 btc reward for anyone that can assist me here;

I created an offline BTC wallet using a saved version of bitaddress.org html (version 2.76) on an offline macbook air using google chrome version 32.0.1700.77

I did the randomization it generated a new address I saved the public address and sent some coins to that public address, in the  next minute or so I hit "generate new address" by accident and it created a new wallet. I didn't save the private address but already sent the coins to that wallet. Is there any way to retrieve the previous address data? Is it saved in RAM anywhere or perhaps in the java?

Whoever can assist me in this will have 20 btc shipped to them immediately.

Regards

Trezor's Shamir Secret Sharing uses SLIP39 and from what I recall, they are not interchangable. I'm assuming that you're talking about BIP39 seeds. If that is the case, then it is not possible. BIP39 uses PBKDF2 to generate the seed which is a non-reversible function and as such you cannot generate a seed from that. SLIP39 and BIP39 are fundamentally different so they are not compatible in the first place.

BTCrecover actually supports SLIP39. Refer to the documentation here: https://btcrecover.readthedocs.io/en/latest/Usage_Examples/basic_password_recoveries/#slip39-passphrases.

In general, you can't convert a master private key back into a mnemonic phrase (as ranochigo mentioned), because the alrogithms currently in use are all irreversible.

You might be able to combine the Shamir parts if they lead you to reconstruct the whole mnemonic phrase. But that depends on whether that is the contents of the secret parts.

Why would you need BTCrecover though, anyway? Have you lost some of the parts (or the Trezor)?