What went wrong transferring my BCC out of Bitcoin Wallet? On the day of the fork, I had my BTC in Bitcoin Wallet on Android. I sent my BTC to a new wallet. I then made a backup of my old wallet, moved it to my computer, and decrypted it using openssl enc -d -aes-256-cbc -a -in as described here. The resulting file was mostly unreadable, but it had a 12-word mnemonic at the top. I entered it into a local copy of https://iancoleman.github.io/bip39/. I selected the BIP44 tab and and copied the value from "account extended private key" which began with xprv. 

I installed Electron Cash on my phone and imported the key. It said the import was successful, but I'm seeing 0 BCC in my wallet. I've also followed the instructions here for checking my balance on blockdozer.info and importing my key into Coinomi, and both of those methods agree that there's no BCC associated with that address / key. 

Questions:


Is there any other export process I should try, or should these definitely have worked?
Is there any possible way for a wallet that had BTC in it from Jul 28 - Aug 13 to not have had BCC associated with it?
Is there any way to look backward and find out if that wallet ever had BCC, and if so what happened to it?
Your start with BIP39 was good.

You can check your Bitcoin Cash funds according to the explanation at: How to sweep private extended key from mycellium into coinomi for bitcoin cash coins?

There you can understand your funds in internal and external addresses and how to sweep them into a wallet which in this case is Coinomi.