I also received the "E04 Remove and reattach battery. Unit in safeguard mode". After reading through the various postings on this site, I decided to carefully yet thoroughly clean the drum. I used the higher concentration (antimicrobial) isopropyl alchohol 91% which I purchased at the local CVS pharmacy. I shuttled the drum between two Q-tips that had been dipped in the alcohol. I then repeated the process with two additional dry Q-tips. Lastly, I very gently touched the dry Q-tip against the spinning drum. (The drum spins when you close or open the mechanism as though you were inserting or removing a tape.) Success! The camera seems to be working normally, at least for the past 4 minutes. I will now try to find whether there is any validity to the statement in other postings that the JVC tapes are different than the others. If there is some difference in the substrate, then I will pay the extra price for the JVC tapes in the future. I am a bit paranoid about damaging the camera, so I was very careful not to drip alchohol into the electronics. I was also very careful not to slow down the spinning drum with the Q-tip. Proceed at your own risk.

Reply