Go to recovery mode on device without volume key Is there a universal way to enter recovery mode on an Android device with only one turn on/off button? 
I have a tablet (Navon Raptor 7) like this and I can't figure it out. An other problem is that although it can boot and get to the launcher, basically I can't start any application or get to the settings (it says 'xy application stopped' etc.) so I can't even activate debug mode and use adb to achieve this. That's why I want to do a hard reset from recovery...
You can use apps like Quick Boot or Rebooter or some root apps have this feature to go to recovery mode.. Use them