Actually, it's volume up + power. I mean, from an OFF state console, you hold Volume up, then tap Power. That would put you in RCM, assuming the jig is inserted properly. If you have Windows, try TegraRcmGUI to see if it recognizes the RCM (should turn green if it does). If positive, inject the payload.I totally agree with you, but my console does not react to any input. (power + volume up etc.).