Question about “Old BNB Beacon chain”

Would like to know how I can recover my Old BNB beaconchain chain to the new BNB BSC. Every time I try importing my passkey or seed phrase, can’t get the exact adress, it always give me a new one??

1- Tried to make a hot wallet of my cold and import key phrase to TRUST WALLET but still, DIFFERENT ADRESS

2- Tried through BNB but ask me to do it through TrustWallet.

Help, thanks!