JVC GR - DVL300

E04 Unit in safeguard mode : Remove and Reattach Battery

I have had this same problem since my warranty ran out on my JVC DV camcorder. When I turn it on to record or play, a code appears on the display screen "E04 Remove and reattach battery. Unit in safegaurd mode." I have tried to remove the battery and replace it and I have the head cleaned. Twice I have brought it in for repairs but over time the same thing comes up. Can any one tell me what causes this and how to rectify it.

Reply

• Re: JVC GR - DVL300 Jon - 20th Jun 2008 17:42
  hello - I've the same camera and exactly the same error. I know it was a while ago you posted this error - did you ever get a resolution to it?
  
  Thanks
  Jon
  
  
• Re: JVC GR - DVL300 Rob M - 10th Sep 2008 13:03
  Take the battery out, turn it upside down and bang it on the bas a few times with the flat of your hand.
  
  Put the battery back in and start it up.
  
  Works for me.
  
  Emailed JVC about it but got no response...too hi tech for them!
  
  
• Re: JVC GR - DVL300
  assistance
  - 18th Apr 2009 16:03
  NO REPLIES WILL BE RECEIVED FROM ANY POSTING MADE IN THIS SECTION AS IT IS NO LONGER OPERATIONAL.
  
  
• Re: JVC GR - DVL300 Doug Hart - 23rd Apr 2009 1:38
  I have a similar problem. My JVC GR-DVL920 shows "EO4 Safeguard mode. Eject and reinsert tape." Did you receive any answer to your inquiry? I would appreciate any input to solve this problem. Thank You.
  
  
• Re: JVC GR - DVL300
  Gabriel
  - 28th Aug 2009 8:40
  Hi,
  my name is Gabriel, I am from Germany. The local service center gave me the hint to lift up the batterie and any other eletrical source, leave the camcorder for a couple of hours and restart it again. Mostly the error is gone. He explained it must have something to do with the microchip inside which needs to set back or something. If this does not work you must send it to the service. Hope this message is useful.