1 - press resume button and then press power button
2 - realese the resume button and press 2 more times then realese both
3 - press and release resume 4 times and power 2 times...
The way it works is to PRESS the ON/OFF button plus the RESUME button at the same time, keep your fingers on both bottons all the time THEN let go of the resume button and press it 2 times and only then let go of the OFF/ON button (which you have been helding down while pressing the resume button 2 times). Then INDIVIDUALLY, first press and release the resume button 4 times and the power button 2 times after this. Works like a charm !