I did it...... it's almost impossible. LOL
I knew U won't believe me without proof.. so here it is
I think ppl mess up most is the vol pressing action. My little trick is to use the thumb joint where there is no finger print so it slide easier. The moment I press the "Talk" (or aka off hook) I slide my thumb joint from the + side of the vol to the - side. This will insure I press + and than - with one movement. Do that 3 times as fast as I could and than press the Tune nob...... and aye the message "Receive vol"
Goodluck hahaha, U'll need it.