I have 0.16 btx on my address..but when I try to import the private ket into btx wallet it says that "nothing was found" , like you have no fund
If it's on a 2FA address, you can't just "export the private key" from Electrum due to the 2FA wallet in Electrum being a multi-sig wallet and each address being constructed from THREE private keys.
If you simply select "Wallet -> Private Keys -> Export" (or right click an Address in 2FA wallet and select "private key"), you will only get ONE key for each address...
The ONLY way to access these addresses in other coins (or wallets) is if:
1. The other coin (or wallet) supports Multi-Signature addresses
2. You export the 2 private keys from your
disabled 2FA wallet
3. You recreate the multi-sig address in the new coin (or wallet) by combining the two private keys you exported and the public key the matches the 3rd private key (held by TrustedCoin)
Or
You manually create a transaction that sends the coins from the 2FA wallet address to new address of the forkcoin, as per the instructions in this thread.