I read your posting about changing the batteries. I tried it once and it did not work. Then, I tried it again a few weeks later and the new batteries made it work. I have not tried the rechargable batteries again. I am afraid to remove the batteries I placed in the camera. I hope this helps you. I think there must be a sensor that gets reset at some point and the issue stops. Who knows. Good luck!!!
HP also suggested to reset the camera as follows:
To Reset The Camera:
1. Remove the memory card and turn on the camera.
2. Open the battery compartment and remove the batteries.
3. Wait at least ten seconds.
4. Reinsert the batteries and turn on the camera.
I also found information regarding a similar problem with another model at this link:
Focus Assist Light and LCD Flash Simultaneously
When the HP Photosmart digital camera is placed on the dock without batteries, the AF assistance
LED and LCD
could blink at the same time.
It seems that the super-capacitor on the camera senses the voltage supplied by either the AC adapter or batteries when they are inserted.
This is more an annoyance rather than an actual failure on the device. The microcontroller (Dang) senses the voltage and sends a signal to the LCD
and AF assistant
LED. This is what some times is called a WAD (working as designed).
If batteries are present or the super-capacitor is charged, the AC adapter will not trigger this behavior. This can be tried by inserting some batteries on the camera for 3 or 5 minutes, then remove them and place the camera on the dock. No blinking should be present.