Hello, why dont you use the website Copay has to recover the Bitcoin Cash?
https://bitpay.github.io/copay-recovery/They basically scan your funds in BitcoinCash and let you send them to another wallet.
They recommend you to create and do a backup of a new wallet and then follow the procedure, that is because you will have to introduce your wallet backup file or word into the website tool.
give it a try and then post the results.
good luck
Ok thanks, I going to test this recovery, but if my 3/4 of my BCC are in Coinomi, can a problem occur?
Edit : Scan finished : Available balance: 0.00000000 BTC. Insufficents funds.
Yes, it's because all my BTC are in Jaxx now!