172Technical NotesCamera Error Messages and DisplaysThis section lists common warning indicators and error messages that appear in theviewfinder and monitor.D HelpA blinking F is displayed in the monitor or a blinking L (warning indicator) displayed in theviewfinder indicates that a description of the current problem can be viewed by pressing M.Message Viewfinder Solution ALock lens aperture ring atminimum aperture (largestf-number).Fee(blinks)Lock ring at minimum aperture (largest f-number). 19, 40Lens not attached. Fww/L(blinks) • No lens attached: attach lens.• Attached lens is not CPU lens: select moded.1840, 44,62, 146Attach a lens. Fww/J(blinks)Shutter release disabled.Recharge battery.D(blinks)Turn camera off and recharge battery orreplace with fully-charged spare battery. 16, 28This battery cannot be used.Choose battery designatedfor use in this camera.D(blinks) Insert EN-EL9 battery. 16–17Initialization error. Turncamera off and then onagain.D(blinks)Turn camera off, remove and reinsertbattery, and then turn camera on again. 6, 16–17Battery level is low.Complete operation andturn cameraoff immediately.— End cleaning or inspection of low-pass filterand turn camera off immediately. 162Clock not set. L(blinks) Set camera clock. 21No SD card inserted. IwewJ Insert memory card. 23–24— A(blinks)Subject is not in focus. Recompose or focusmanually. 61Memory card is locked.Slide lock to “write” position.Cha(blinks)Slide card write-protect switch to “write”position. 23