How do I change BTT to BTTC?

You can cash out your BTT with the same exchange you bought it through:

1) Go to the BTTC app website and click on “Get BTT” on the top navigation bar. 2) Enter the amount of BTTOLD you would like to swap in the “Amount to swap” field and click “Confirm Swap” (please make sure that you have installed and connected to TronLink wallet).23 Oca 2022

Binance Has Completed the BitTorrent (BTT) Token Migration, Redenomination and Renaming Plan . Fellow Binancians, Binance has completed the BitTorrent (BTT) token migration, 1:1,000 redenomination and renaming. Deposits and withdrawals for BTTC (TRC20) are now open.26 Oca 2022

First you need to get the BTT TRC-10 address from your Binance or 7b account. Then you go to Trust wallet and choose BTT. Input the required address and sum. Confirm the transaction .