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  1. #1
    Senior Member

    "Green Light of Death" (?) on D850

    Greetings all,

    I'm a recent convert from Canon to Nikon, so this is probably an old question.

    One of my new bodies is a D850. I recently noticed that the green light on the back (writing data to card, as I understand it), blinks perpetually when the body is turned off.

    When I picked it up tonight, I discovered the EN-EL18c was completely dead. All my gear is Nikon - no 3rd party stuff.

    I have now tried it with all the following conditions, and as long as any battery is installed and the camera is powered "off" the light just flashes endlessly:

    Different EN-EL18c in battery grip, no EN-EL15 in body with XQD installed & fresh format from this D850.
    Different EN-EL18c in battery grip, with EN-EL15 in body with XQD installed & fresh format from this D850.
    Different EN-EL18c in battery grip, no EN-EL15 in body with no memory cards in stalled.
    Different EN-EL18c in battery grip, with EN-EL15 in body with no memory cards in stalled.
    Above options both with & w/o lens mounted.
    Freshly charged EN-EL15 in body, no grip, with and w/o XQD with lens.
    Freshly charged EN-EL15 in body, no grip, with and w/o XQD with w/o lens.

    The only way to make it stop is to remove all batteries.

    Google calls it the "Green Light of Death", but from what I found it was mainly on older bodies.

    I tried the switch flicking exercise w/o any results, but this body is less than 3 months old with low usage at this point.

    Any thought, ideas, recommendations?

    Anyone else had this on a D850?

    Thanks in advance!

    Phil


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  2. #2
    Senior Member

    Re: "Green Light of Death" (?) on D850

    Try downloading the latest firmware upgrade and installing it.

    https://downloadcenter.nikonimglib.c...ad/fw/311.html

    I would suggest a "factory reset", but I think that only applies to your settings and is not a genuine re-boot.
    Thanks/Like PhilM_TX Thanks/liked this post
     

  3. #3
    Senior Member

    Re: "Green Light of Death" (?) on D850

    Thanks for the feedback. The body shipped with the latest (1.03) firmware.

    I have a status update on my situation.

    I left the body w/o any batteries overnight. When I put a battery in this AM, it immediately began flashing again.

    I pulled the battery & brought it to work with me so I could call Nikon on it.

    When I put the battery back in, in preparation to calling Nikon - IT NO LONGER FLASHED! Just like taking a car to the dealership. :-/

    I went ahead and called Nikon and worked with a gal for about 30 minutes. She had me go back and disable Airplane mode and check Network & BT settings. Both had never been enabled, configured, or connected. She said that even with Airplane mode enabled, the camera "could" try to find a BT device. Not sure I buy that, but I followed recommendations as directed.

    In the end, I re-enabled Airplane mode.

    All is working normally, but I do not understand why. I'll have to keep an eye on it and see if it occurs again.

    Nikon did log the incident against my s/n, so I can easily follow up if necessary.

    I have to say, the phone experience with the Nikon tech was "top notch", simple, and quick. Thumbs up on that one!
    Thanks/Like Blade Canyon Thanks/liked this post
     

  4. #4
    Senior Member
    Bikerbrent's Avatar

    Re: "Green Light of Death" (?) on D850

    Glad you got it working again. Just love these "and then a miracle occurs" type fixes
    Thanks/Like PhilM_TX Thanks/liked this post
     
    Brent: Poway, CA
    D7200, D200, F100
    Tokina 12-24mm
    Nikon 18-200mm
    Tokina 28-70mm f2.6-2.8
    Nikon 80-200mm f2.8
    Sigma 150-600mm
    Nikon 50 AF f1.8
    Tokina 100mm f2.8 Macro
    Nikon SB800

  5. #5
    Senior Member
    Ad B's Avatar

    Re: "Green Light of Death" (?) on D850

    Hi,

    glad for you, it's fixed...
    I never had a constant flickering light when my D850 was turned off.
    I think it's the fact that Wifi and BT is constant making connection...
    I never have my Wifi and BT on, that will drain your battery.
    Airplane mode ON... Than it shuts Wifi and BT off.
    Just set it to Off and your Wifi and BT ON when you want to use it.
    Best Answers Blade Canyon voted best answer for this post
     

  6. #6
    Senior Member

    Re: "Green Light of Death" (?) on D850

    Now that it's working, we hope you'll share some pics with the forum! Have fun with the D850, I love mine.

  7. #7
    Senior Member

    Re: "Green Light of Death" (?) on D850

    Thanks guys...

    Update: 1/9/19

    Things seemed to be going well yesterday. I went out during lunch & shot a 100'ish images & all was well. When I was done and powered the body off, there was no blinking green light on the back.

    When I grabbed the camera this AM, the battery (EN-EL18c) was DEAD. It was fully charged yesterday and I shot roughly 100 images.

    I put a different, fully charged EN-EL18c in the battery grip and the camera booted as normal. When I shut it off, the *&% blinking green light on the back was blinking perpetually again.

    Note: I have NEVER attempted to connect it to WiFi or BT. In fact, I set AirPlane mode to "Enabled" during my initial setup and have NEVER taken the unit out of AirPlane mode - All of my Nikon bodies are setup this way to maximize battery life. I learned this from a Z7.

    Guess I need to get Nikon back on the horn. :-/

  8. #8
    Senior Member

    Re: "Green Light of Death" (?) on D850

    Have you tried different memory cards? Are you using an XQD card? I would remove the XQD card and try SD only. Then I would try XQD only and/or different SD cards. If you don't have different cards, try reformatting the ones you have.

    My reasoning is that the blinking light normally means the camera is trying to write, so maybe there is something wrong with the cards that is causing the body to keep trying to write.

    Strange, however, that the light was not blinking, but the battery was dead anyway.

  9. #9
    Staff
    Super Mod
    hark's Avatar

    Re: "Green Light of Death" (?) on D850

    Have you tried it without the grip to narrow down whether or not the grip is a factor?
    Cindy
    Flickr
    and
    My 2018 Thread
    Where the Spirit does not work with the hand, there is no art
    -- Leonardo da Vinci



  10. #10
    Senior Member

    Re: "Green Light of Death" (?) on D850

    Quote Originally Posted by Blade Canyon View Post
    Have you tried different memory cards? Are you using an XQD card? I would remove the XQD card and try SD only. Then I would try XQD only and/or different SD cards. If you don't have different cards, try reformatting the ones you have.

    My reasoning is that the blinking light normally means the camera is trying to write, so maybe there is something wrong with the cards that is causing the body to keep trying to write.

    Strange, however, that the light was not blinking, but the battery was dead anyway.
    Yes, I have, on all questions.
    Different XQD
    Different SD
    All formatted on this D850

    I am in agreement with regard to the attempt to write data theory.
    Thanks/Like Blade Canyon Thanks/liked this post
     





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