One aspect of learning a handiwork especially phone engineering is that you will one day spoil a customers phone. According to a popular saying "if you never spoil customer phone, you no go sabi the work" .
So share with us that moment when you spoilt a customers device.

Mine happened 2 weeks after starting the work, i was afraid of soldering iron then. So i wanted to change a charging port, as i was struggling with the board and carefully avoiding the heat from the soldering iron, It slipped and burnt the network cable and vibrator . I ran out and bought new charging board.