MB-D11 battery (BP) icon is not appearing.
1. Does the camera not work with the AA batteries installed and no EN-EL15 batt in the camera?
2. Does the camera work with an EN-EL15 battery installed in the grip only?
3. Are you installing the AA batts in an MS-D11 battery holder which is different than the EN-El15 battery holder?
4. Is the grip Control Lock in the unlocked position . . . dot to dot?
5. Is it a genuine NIKON MB-D11 grip that you are using?