I was able to send mBtc to my electrum wallet from my coinbase just fine. BUT Now i need to send mBtc to my coinbase from my eletrum
wallet. i tried to send it to what i believe is my coinbase receiving code but its says "invalid Lines found"
please help
Then you are probably doing it wrong , post this thing that you believe it's your receiving code (address) , also maybe you are trying to send more bitcoin then you are supposed to be (then you own) , when you are on the send tab , instead of writing the amount you want to send , click
! that should fill the textbox with all BTC that you own on your wallet , then modify how even you want (as I said , it's just to verify if you are saying the correct amount) .