May I know enough reason or not when recovery hacked account trough SIGNED MESSAGE ETHEREUM? my friend account got hack and several post proof in service signature campaign using Binance segwit BTC address.
Your friend can try to recover his account using an Ethereum address, but since this is a BitcoinTalk forum, a Bitcoin address is definitely preferred. But could you please try to rephrase your question to make it more clear?
SIGNED MESSAGE BITCOIN only available when using Blockchain Bitcoin address, if using another bitcoin address seems can't signed with Bitcoin message.
That is incorrect. Signing a message to prove your ownership of bitcoin addresses is possible from almost any non-custodial Bitcoin wallet. A crypto exchange such as Binance is not a non-custodial Bitcoin wallet.