Great post, thank-you. One question: My toothbrush has a wire loop around the head. The loop is soldered to the circuit board. Do you know what that wire is for? Cheers!

Hi there,

Thanks for this guide! Can you tell me what temperature am I aiming for please? I don’t want to overheat my phone so it would be good if I could check the iOpener temp with a thermometer.

Thanks!