... welding 775 pedestal(No removing,directly reweld),must use liquid scaling powder.When welding 775 pedestal,must take down new socket’s iron ... .Even brand new chip,if stored in room enviroment, still absorb water in air, and result in breakdown. So,suggest to purchase moistureproof ... bottom is 230°C,now the solder has melted.But why still can’t take down chips by tweezers as the ...