I also use an old toothbrush. I try to avoid blowing air into the speaker and microphone though.Use an old toothbrush and/or a bulb air blower.
BluTack is probably a bad idea... easily forced into the grille itself.I use blue museum tack putty. It gets it looking brand new again. It is also great at cleaning out the lightning port.
My experience has been the opposite. The putty is sticky and pulls the dirt and debris out. The grills look brand new after this treatment.BluTack is probably a bad idea... easily forced into the grille itself.
I agree, also it is good for cleaning airpods and getting the wax/dirt outI use blue museum tack putty. It gets it looking brand new again. It is also great at cleaning out the lightning port.